STM32G473CBT6

STM32G473xB STM32G473xC STM32G473xE Arm® Cortex®-M4 32-bit MCU+FPU, up to 512 KB Flash, 170 MHz / 213DMIPS, 128 KB SRAM, rich analog, math accelerator Datasheet - production data Features • Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory, frequency up to 170 MHz with 213 DMIPS, MPU, DSP instructions • Operating conditions: – VDD, VDDA voltage range: 1.71 V to 3.6 V WLCSP81 (4.02 x 4.27 mm) LQFP80 (12 x 12 mm) LQFP100 (14 x 14 mm) LQFP128 (14 x 14 mm) – Internal 32 kHz RC oscillator (± 5%) • Memories – 512 Kbytes of Flash memory with ECC support, two banks read-while-write, proprietary code readout protection (PCROP), securable memory area, 1 Kbyte OTP – 96 Kbytes of SRAM, with hardware parity check implemented on the first 32 Kbytes – Routine booster: 32 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM) – External memory interface for static memories FSMC supporting SRAM, PSRAM, NOR and NAND memories – Quad-SPI memory interface • Reset and supply management – Power-on/power-down reset (POR/PDR/BOR) – Programmable voltage detector (PVD) – Low-power modes: sleep, stop, standby and shutdown – VBAT supply for RTC and backup registers • Clock management – 4 to 48 MHz crystal oscillator – 32 kHz oscillator with calibration – Internal 16 MHz RC with PLL option (± 1%) This is information on a product in full production. UFQFPN48 (7 x 7 mm) TFBGA100 (8 x 8 mm Pitch 0.8) • Mathematical hardware accelerators – CORDIC for trigonometric functions acceleration – FMAC: filter mathematical accelerator October 2019 LQFP48 (7 x 7 mm) LQFP64 (10 x 10 mm) • Up to 107 fast I/Os – All mappable on external interrupt vectors – Several I/Os with 5 V tolerant capability • Interconnect matrix • 16-channel DMA controller • 5 x 12-bit ADCs 0.25 µs, up to 42 channels. Resolution up to 16-bit with hardware oversampling, 0 to 3.6 V conversion range • 7 x 12-bit DAC channels – 3 x buffered external channels 1 MSPS – 4 x unbuffered internal channels 15 MSPS • 7 x ultra-fast rail-to-rail analog comparators • 6 x operational amplifiers that can be used in PGA mode, all terminals accessible • Internal voltage reference buffer (VREFBUF) supporting three output voltages (2.048 V, 2.5 V, 2.95 V) • 1617 timers: – 2 x 32-bit timer and 2 x 16-bit timers with up to four IC/OC/PWM or pulse counter and quadrature (incremental) encoder input – 3 x 16-bit 8-channel advanced motor control timers, with up to 8 x PWM channels, dead time generation and emergency stop DS12712 Rev 2 1/223 www.st.com STM32G473xB STM32G473xC STM32G473xE – 1 x 16-bit timer with 2 x IC/OCs, one OCN/PWM, dead time generation and emergency stop – 2 x 16-bit timers with IC/OC/OCN/PWM, dead time generation and emergency stop – 2 x watchdog timers (independent, window) – 1 x SysTick timer: 24-bit downcounter – 2 x 16-bit basic timers – 1 x low-power timer • Calendar RTC with alarm, periodic wakeup from stop/standby – 5 x USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control) – 1 x LPUART – 4 x SPIs, 4 to 16 programmable bit frames, 2 x with multiplexed half duplex I2S interface – 1 x SAI (serial audio interface) – USB 2.0 full-speed interface with LPM and BCD support – IRTIM (infrared interface) – USB Type-C™ /USB power delivery controller (UCPD) • Communication interfaces • True random number generator (RNG) – 3 x FDCAN controller supporting flexible data rate • CRC calculation unit, 96-bit unique ID 2 – 4 x I C Fast mode plus (1 Mbit/s) with • Development support: serial wire debug 20 mA current sink, SMBus/PMBus, (SWD), JTAG, Embedded Trace Macrocell™ wakeup from stop Table 1. Device summary Reference Part number STM32G473xB STM32G473CB, STM32G473MB, STM32G473RB, STM32G473VB, STM32G473QB STM32G473xC STM32G473CC, STM32G473MC, STM32G473RC, STM32G473VC, STM32G473QC STM32G473xE STM32G473CE, STM32G473ME, STM32G473RE, STM32G473VE, STM32G473QE 2/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Contents Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.1 Arm® Cortex®-M4 core with FPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.2 Adaptive real-time memory accelerator (ART accelerator) . . . . . . . . . . . 17 3.3 Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.4 Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.5 Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.6 Multi-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.7 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.8 CORDIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.9 Filter mathematical accelerator (FMAC) . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.10 Cyclic redundancy check calculation unit (CRC) . . . . . . . . . . . . . . . . . . . 21 3.11 Power supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.11.1 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.11.2 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.11.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.11.4 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.11.5 Reset mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.11.6 VBAT operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.12 Interconnect matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.13 Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.14 General-purpose inputs/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.15 Direct memory access controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.16 DMA request router (DMAMux) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.17 Interrupts and events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.18 3.17.1 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . 29 3.17.2 Extended interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . 29 Analog-to-digital converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.18.1 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 DS12712 Rev 2 3/223 6 Contents 4/223 STM32G473xB STM32G473xC STM32G473xE 3.18.2 Internal voltage reference (VREFINT) . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.18.3 VBAT battery voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.18.4 Operational amplifier internal output (OPAMPxINT): . . . . . . . . . . . . . . . 31 3.19 Digital to analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.20 Voltage reference buffer (VREFBUF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.21 Comparators (COMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.22 Operational amplifier (OPAMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.23 Random number generator (RNG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.24 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.24.1 Advanced motor control timer (TIM1, TIM8, TIM20) . . . . . . . . . . . . . . . 34 3.24.2 General-purpose timers (TIM2, TIM3, TIM4, TIM5, TIM15, TIM16, TIM17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.24.3 Basic timers (TIM6 and TIM7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.24.4 Low-power timer (LPTIM1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.24.5 Independent watchdog (IWDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.24.6 System window watchdog (WWDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.24.7 SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.25 Real-time clock (RTC) and backup registers . . . . . . . . . . . . . . . . . . . . . . 37 3.26 Tamper and backup registers (TAMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.27 Infrared transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.28 Inter-integrated circuit interface (I2C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.29 Universal synchronous/asynchronous receiver transmitter (USART) . . . 40 3.30 Low-power universal asynchronous receiver transmitter (LPUART) . . . . 41 3.31 Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.32 Serial audio interfaces (SAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.33 Controller area network (FDCAN1, FDCAN2, FDCAN3) . . . . . . . . . . . . . 43 3.34 Universal serial bus (USB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.35 USB Type-C™ / USB Power Delivery controller (UCPD) . . . . . . . . . . . . . 43 3.36 Clock recovery system (CRS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.37 Flexible static memory controller (FSMC) . . . . . . . . . . . . . . . . . . . . . . . . 44 3.38 Quad SPI memory interface (QUADSPI) . . . . . . . . . . . . . . . . . . . . . . . . . 45 3.39 Development support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.39.1 Serial wire JTAG debug port (SWJ-DP) . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.39.2 Embedded trace macrocell™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 4 5 Contents Pinouts and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 4.1 UFQFPN48 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 4.2 LQFP48 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 4.3 LQFP64 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 4.4 LQFP80 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 4.5 LQFP100 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 4.6 LQFP128 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 4.7 WLCSP81 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 4.8 TFBGA100 pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 4.9 Pin definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 4.10 Alternate functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.1 Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.1.1 Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.1.2 Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.1.3 Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.1.4 Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.1.5 Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.1.6 Power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 5.1.7 Current consumption measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 5.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 5.3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.3.1 General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.3.2 Operating conditions at power-up / power-down . . . . . . . . . . . . . . . . . . 82 5.3.3 Embedded reset and power control block characteristics . . . . . . . . . . . 82 5.3.4 Embedded voltage reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 5.3.5 Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 5.3.6 Wakeup time from low-power modes and voltage scaling transition times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 5.3.7 External clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 118 5.3.8 Internal clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 123 5.3.9 PLL characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 5.3.10 Flash memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 5.3.11 EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 5.3.12 Electrical sensitivity characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 DS12712 Rev 2 5/223 6 Contents 6 STM32G473xB STM32G473xC STM32G473xE 5.3.13 I/O current injection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 5.3.14 I/O port characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 5.3.15 NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 5.3.16 Extended interrupt and event controller input (EXTI) characteristics . . 137 5.3.17 Analog switches booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 5.3.18 Analog-to-digital converter characteristics . . . . . . . . . . . . . . . . . . . . . . 138 5.3.19 Digital-to-Analog converter characteristics . . . . . . . . . . . . . . . . . . . . . 153 5.3.20 Voltage reference buffer characteristics . . . . . . . . . . . . . . . . . . . . . . . 160 5.3.21 Comparator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 5.3.22 Operational amplifiers characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 164 5.3.23 Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 5.3.24 VBAT monitoring characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 5.3.25 Timer characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 5.3.26 Communication interfaces characteristics . . . . . . . . . . . . . . . . . . . . . . 170 5.3.27 FSMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 5.3.28 QUADSPI characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 5.3.29 UCPD characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 6.1 WLCSP81 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 6.2 UFQFPN48 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 6.3 LQFP48 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 6.4 LQFP64 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 6.5 LQFP80 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 6.6 TFBGA100 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211 6.7 LQFP100 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 6.8 LQFP128 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 6.9 Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 6.9.1 Reference document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 6.9.2 Selecting the product temperature range . . . . . . . . . . . . . . . . . . . . . . 218 7 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 6/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Table 27. Table 28. Table 29. Table 30. Table 31. Table 32. Table 33. Table 34. Table 35. Table 36. Table 37. Table 38. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 STM32G473xB/xC/xE features and peripheral counts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 STM32G473xB/xC/xE peripherals interconnect matrix. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 DMA implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Temperature sensor calibration values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Internal voltage reference calibration values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Timer feature comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 I2C implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 USART/UART/LPUART features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 SAI implementation for the features implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Legend/abbreviations used in the pinout table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 STM32G473xB/xC/xE pin definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Alternate function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Voltage characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Thermal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Operating conditions at power-up / power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Embedded reset and power control block characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . 82 Embedded internal voltage reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Current consumption in Run and Low-power run modes, code with data processing running from Flash in single Bank, ART enable (Cache ON Prefetch OFF) . . 86 Current consumption in Run and Low-power run modes, code with data processing running from Flash in dual bank, ART enable (Cache ON Prefetch OFF) . . . . 88 Current consumption in Run and Low-power run modes, code with data processing running from Flash in single bank, ART disable . . . . . . . . . . . . . . . . . . . . . . . . 90 Current consumption in Run and Low-power run modes, code with data processing running from Flash in dual bank, ART disable . . . . . . . . . . . . . 92 Current consumption in Run and Low-power run modes, code with data processing running from SRAM1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Typical current consumption in Run and Low-power run modes, with different codes running from Flash, ART enable (Cache ON Prefetch OFF) . . . . . . . . . . . . . . . . . . . . . . . 96 Typical current consumption in Run and Low-power run modes, with different codes running from Flash, ART disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Typical current consumption in Run and Low-power run modes, with different codes running from SRAM1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Typical current consumption in Run and Low-power run modes, with different codes running from SRAM2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Typical current consumption in Run and Low-power run modes, with different codes running from CCMSRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Current consumption in Sleep and Low-power sleep mode Flash ON . . . . . . . . . . . . . . . 103 Current consumption in low-power sleep modes, Flash in power-down. . . . . . . . . . . . . . 104 Current consumption in Stop 1 mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Current consumption in Stop 0 mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Current consumption in Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Current consumption in Shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Current consumption in VBAT mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Peripheral current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 DS12712 Rev 2 7/223 9 List of tables Table 39. Table 40. Table 41. Table 42. Table 43. Table 44. Table 45. Table 46. Table 47. Table 48. Table 49. Table 50. Table 51. Table 52. Table 53. Table 54. Table 55. Table 56. Table 57. Table 58. Table 59. Table 60. Table 61. Table 62. Table 63. Table 64. Table 65. Table 66. Table 67. Table 68. Table 69. Table 70. Table 71. Table 72. Table 73. Table 74. Table 75. Table 76. Table 77. Table 78. Table 79. Table 80. Table 81. Table 82. Table 83. Table 84. Table 85. Table 86. Table 87. Table 88. Table 89. Table 90. 8/223 STM32G473xB STM32G473xC STM32G473xE Low-power mode wakeup timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Regulator modes transition times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Wakeup time using USART/LPUART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 High-speed external user clock characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Low-speed external user clock characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 HSE oscillator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 LSE oscillator characteristics (fLSE = 32.768 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 HSI16 oscillator characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 HSI48 oscillator characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 LSI oscillator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 PLL characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Flash memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Flash memory endurance and data retention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 EMS characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 EMI characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 ESD absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Electrical sensitivities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 I/O current injection susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 I/O static characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Output voltage characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 I/O (except FT_c) AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 I/O FT_c AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 EXTI input characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Analog switches booster characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Maximum ADC RAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 ADC accuracy - limited test conditions 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 ADC accuracy - limited test conditions 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 ADC accuracy - limited test conditions 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 ADC accuracy (Multiple ADCs operation) - limited test conditions 1 . . . . . . . . . . . . . . . . 149 ADC accuracy (Multiple ADCs operation) - limited test conditions 2 . . . . . . . . . . . . . . . . 150 ADC accuracy (Multiple ADCs operation) - limited test conditions 3 . . . . . . . . . . . . . . . . 151 DAC 1MSPS characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 DAC 1MSPS accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 DAC 15MSPS characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 DAC 15MSPS accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 VREFBUF characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 COMP characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 OPAMP characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 TS characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 VBAT monitoring characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 VBAT charging characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 TIMx characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 IWDG min/max timeout period at 32 kHz (LSI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 WWDG min/max timeout value at 170 MHz (PCLK). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Minimum I2CCLK frequency in all I2C modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 I2C analog filter characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 SPI characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 I2S characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 SAI characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 USB electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Table 91. Table 92. Table 93. Table 94. Table 95. Table 96. Table 97. Table 98. Table 99. Table 100. Table 101. Table 102. Table 103. Table 104. Table 105. Table 106. Table 107. Table 108. Table 109. Table 110. Table 111. Table 112. Table 113. Table 114. Table 115. Table 116. Table 117. Table 118. Table 119. Table 120. Table 121. List of tables USART electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Asynchronous non-multiplexed SRAM/PSRAM/NOR read timings . . . . . . . . . . . . . . . . . 182 Asynchronous non-multiplexed SRAM/PSRAM/NOR read-NWAIT timings . . . . . . . . . . . 182 Asynchronous non-multiplexed SRAM/PSRAM/NOR write timings . . . . . . . . . . . . . . . . . 183 Asynchronous non-multiplexed SRAM/PSRAM/NOR write-NWAIT timings. . . . . . . . . . . 184 Asynchronous multiplexed PSRAM/NOR read timings. . . . . . . . . . . . . . . . . . . . . . . . . . . 185 Asynchronous multiplexed PSRAM/NOR read-NWAIT timings . . . . . . . . . . . . . . . . . . . . 185 Asynchronous multiplexed PSRAM/NOR write timings . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Asynchronous multiplexed PSRAM/NOR write-NWAIT timings . . . . . . . . . . . . . . . . . . . . 187 Synchronous multiplexed NOR/PSRAM read timings . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 Synchronous multiplexed PSRAM write timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Synchronous non-multiplexed NOR/PSRAM read timings . . . . . . . . . . . . . . . . . . . . . . . . 192 Synchronous non-multiplexed PSRAM write timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Switching characteristics for NAND Flash read cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Switching characteristics for NAND Flash write cycles. . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Quad SPI characteristics in SDR mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 QUADSPI characteristics in DDR mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 UCPD characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 WLCSP81 - mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 WLCSP81 - recommended PCB design rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 UFQFPN48 - mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 LQFP48 - mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 LQFP64 - mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 LQFP80 - mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 TFBGA100 - mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 TFBGA100 - recommended PCB design rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 LQPF100- mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 LQFP128 - mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Package thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 DS12712 Rev 2 9/223 9 List of figures STM32G473xB STM32G473xC STM32G473xE List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Figure 42. Figure 43. Figure 44. Figure 45. Figure 46. Figure 47. Figure 48. 10/223 STM32G473xB/xC/xE block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Multi-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Voltage reference buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Infrared transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 STM32G473xB/xC/xE UFQFPN48 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 STM32G473xB/xC/xE LQFP48 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 STM32G473xB/xC/xE LQFP64 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 STM32G473xB/xC/xE LQFP80 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 STM32G473xB/xC/xE LQFP100 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 STM32G473xB/xC/xE LQFP128 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 STM32G473xB/xC/xE WLCSP81 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 STM32G473xB/xC/xE TFBGA100 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Pin loading conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Power supply scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Current consumption measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 VREFINT versus temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 High-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Low-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Typical application with an 8 MHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Typical application with a 32.768 kHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 HSI16 frequency versus temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 HSI48 frequency versus temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 I/O input characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 I/O AC characteristics definition(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Recommended NRST pin protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 ADC accuracy characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Typical connection diagram using the ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 12-bit buffered / non-buffered DAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 VREFOUT_TEMP in case VRS = 00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 VREFOUT_TEMP in case VRS = 01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 VREFOUT_TEMP in case VRS = 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 OPAMP noise density @ 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 SPI timing diagram - slave mode and CPHA = 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 SPI timing diagram - slave mode and CPHA = 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 SPI timing diagram - master mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 SAI master timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 SAI slave timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 Asynchronous non-multiplexed SRAM/PSRAM/NOR read waveforms . . . . . . . . . . . . . . 181 Asynchronous non-multiplexed SRAM/PSRAM/NOR write waveforms . . . . . . . . . . . . . . 183 Asynchronous multiplexed PSRAM/NOR read waveforms. . . . . . . . . . . . . . . . . . . . . . . . 184 Asynchronous multiplexed PSRAM/NOR write waveforms . . . . . . . . . . . . . . . . . . . . . . . 186 Synchronous multiplexed NOR/PSRAM read timings . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Synchronous multiplexed PSRAM write timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Synchronous non-multiplexed NOR/PSRAM read timings . . . . . . . . . . . . . . . . . . . . . . . . 192 Synchronous non-multiplexed PSRAM write timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 NAND controller waveforms for read access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 NAND controller waveforms for write access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Figure 49. Figure 50. Figure 51. Figure 52. Figure 53. Figure 54. Figure 55. Figure 56. Figure 57. Figure 58. Figure 59. Figure 60. Figure 61. Figure 62. Figure 63. Figure 64. Figure 65. Figure 66. Figure 67. List of figures NAND controller waveforms for common memory read access . . . . . . . . . . . . . . . . . . . . 195 NAND controller waveforms for common memory write access. . . . . . . . . . . . . . . . . . . . 196 Quad SPI timing diagram - SDR mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Quad SPI timing diagram - DDR mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 WLCSP81 - outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 WLCSP81 - recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 UFQFPN48 - outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 UFQFPN48 - recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 LQFP48 - outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 LQFP48 - recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 LQFP64 - outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 LQFP64 - recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 LQFP80 - outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 LQFP80 - recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 TFBGA100 - outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 TFBGA100 - recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 LQFP100 - outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 LQFP100 - recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 LQFP128 - outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 DS12712 Rev 2 11/223 11 Introduction 1 STM32G473xB STM32G473xC STM32G473xE Introduction This datasheet provides the ordering information and mechanical device characteristics of the STM32G473xB/xC/xE microcontrollers. This document should be read in conjunction with the reference manual RM0440 “STM32G4 Series advanced Arm® 32-bit MCUs”. The reference manual is available from the STMicroelectronics website www.st.com. For information on the Arm®(a) Cortex®-M4 core, refer to the Cortex®-M4 technical reference manual, available from the www.arm.com website. a. Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. 12/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 2 Description Description The STM32G473xB/xC/xE devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 170 MHz. The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm single-precision data-processing instructions and all the data types. It also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the application’s security. These devices embed high-speed memories (512 Kbytes of Flash memory, and 128 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI Flash memory interface, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. The devices also embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, securable memory area and proprietary code readout protection. The devices embed peripherals allowing mathematical/arithmetic function acceleration (CORDIC for trigonometric functions and FMAC unit for filter functions). They offer five fast 12-bit ADCs (5 Msps), seven comparators, six operational amplifiers, seven DAC channels (3 external and 4 internal), an internal voltage reference buffer, a lowpower RTC, twothree general-purpose 32-bit timers, three 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and one 16-bit low-power timer. They also feature standard and advanced communication interfaces such as: • Four I2Cs • Four SPIs multiplexed with two half duplex I2Ss • Three USARTs, two UARTs and one low-power UART. • Three FDCANs • One SAI • USB device • UCPD The devices operate in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications. Some independent power supplies are supported including an analog independent supply input for ADC, DAC, OPAMPs and comparators. A VBAT input allows backup of the RTC and the registers. The STM32G473xB/xC/xE family offers 8 packages from 48-pin to 128-pin. DS12712 Rev 2 13/223 46 Description STM32G473xB STM32G473xC STM32G473xE Table 2. STM32G473xB/xC/xE features and peripheral counts Peripheral Flash memory STM32G473 Cx 128 KB 256 KB STM32G473 Rx STM32G473 Qx 128 (80 + 16+ 32) KB External memory controller for static memories (FSMC) No Yes(1) Yes QUADSPI Yes 1 Advanced motor control 3 (16-bit) General purpose 5 (16-bit) 2 (32-bit) Basic 2 (16-bit) Low power 1 (16-bit) SysTick timer 1 Watchdog timers (independent, window) 2 SPI(I2S)(2) 3 (2) 4 (2) 2C I 4 USART 3 UART Comm. LPUART interfaces FDCANs 0 2 1 3 USB device Yes UCPD Yes SAI Yes RTC Tamper pins Yes 2 3 Random number generator Yes CORDIC Yes FMAC Yes GPIOs Wakeup pins 12-bit ADCs Number of channels 14/223 STM32G473 Vx 512 128 256 512 128 256 512 128 256 512 128 256 512 KB KB KB KB KB KB KB KB KB KB KB KB KB SRAM Timers STM32G473 Mx 38 in LQFP48 42 in UFQFPN48 3 52 4 67 in WLCSP81 66 in LQFP80 4 86 107 5 5 42 42 5 20 in LQFP48 21 in UFQFPN48 26 DS12712 Rev 2 42 in WLCSP81 41 in LQFP80 STM32G473xB STM32G473xC STM32G473xE Description Table 2. STM32G473xB/xC/xE features and peripheral counts (continued) Peripheral STM32G473 Cx 12-bit DAC Number of channels STM32G473 Rx STM32G473 Mx Yes Analog comparator 7 Operational amplifiers 6 Max. CPU frequency 170 MHz Operating voltage Packages STM32G473 Qx 4 7 (3 external + 4 internal) Internal voltage reference buffer Operating temperature STM32G473 Vx 1.71 V to 3.6 V Ambient operating temperature: -40 to 85 °C / -40 to 125 °C LQFP48/ UFQFPN48 LQFP64 WLCSP81 LQFP80 LQFP100/ TFBGA100 LQFP128 1. For the LQFP100 package, only FMC bank1 and NAND bank are available. Bank1 can only support a multiplexed NOR/PSRAM memory using the NE1 chip select. 2. The SPI2/3 interfaces can work in an exclusive way in either the SPI mode or the I2S audio mode. DS12712 Rev 2 15/223 46 Description STM32G473xB STM32G473xC STM32G473xE Figure 1. STM32G473xB/xC/xE block diagram Arm® Cortex-M4 170MHz QUADSPI D-BUS I-BUS S-BUS GP-DMA2 8 Chan GP-DMA1 8 Chan @VDDA CCM SRAM 32 KB OUT1/OUT2 CH2 SRAM2 16 KB CH1 DAC2 OUT1 SRAM1 80 KB CH1 DAC3 RNG @VDDA CH2 CH1 DAC4 CH2 RNB1 analog SAR ADC1 IF POWER MNGT CORDIC SAR ADC3 VOLT. REG. 3.3V TO 1.2V VDD12 SAR ADC4 CH1 DAC1 AHB2 SAR ADC2 CLK, NCS, BK1_IO[3:0] TinyAES FLASH 2 x 256 KB DMAMUX Ain ADC CLK, E(3:0), A(23:0) D(31:0), OEN, WEN, BL(3:0), L, WAIT/IORDY, IORD, IOWD,IS16 as AF FSMC MPU NVIC FPU ACCEL/ CACHE TRACECK TRACED(3:0) JTAG & SW ETM AHB BUS-MATRIX 5M / 9S JTRST, JTDI, JTCK/SWCLK JTDO/SWD, JTDO FMAC IF AHB1 SAR ADC5 @VDD SUPPLY SUPERVISION @VDD PA(15:0) USART GPIO2MBps PORT A LSI POR PB(15:0) USART GPIO2MBps PORT B PLL PC(15:0) USART GPIO2MBps PORT C Reset Int HSI VDD = 1.71 to 3.6V VSS POR / BOR VDD, VSS, VDDA, VSSA, RESET PVD, PWM HSI48 PD(15:0) USART GPIO2MBps PORT D PE(15:0) USART GPIO2MBps PORT E PF(15:0) USART GPIO2MBps PORT F PG(10:0) USART GPIO2MBps PORT G XTAL OSC 4-48MHz IWDG RESET& CLOCKCTRL OSC_IN OSC_OUT Standby Interface VBAT = 1.55 to 3.6V @VBAT peripheralclocks and system EXT IT. WKUP TIMER8 16b PWM AHB/APB2 AHB/APB1 4 CH, ETR as AF 16b TIMER3&4 4 CH, ETR as AF CH as AF TIMER16 USART 2MBps TIMER17 USART 2MBps 4 PWM,4PWM, ETR,BKIN as F RX, TX, SCK,CTS, RTS as AF USART USART 2MBps1 MOSI, MISO SCK, NSS as AF 1 USART SPI 2MBps PWRCTRL 16b 16b TIMER20 16b PWM SPI 4 LP_UART1 TIMER6 16b trigg TIMER7 16b trigg USART2&3 UART4&5 SPI2&3 CRS CAN1 & 2 & 3 Smcard irDA irDA I2S half duplex RX, TX, SCK, CTS, RTS as AF RX, TX, CTS, RTS as AF MOSI, MISO, SCK NSS, as AF RX,TX as AF UCPD OPAMP 1,2,3,4,5,6 FIFO PHY SCL, SDA, SMBAL as AF I2C1&2&3&4 LP timer1 @VDDA COMP 1,2,3,4,5,6,7 RX, TX as AF WinWATCHDOG SysCfg Vref_Buf RTC_OUT RTC_TS RTC_TAMPx TIMER2&5 TIMER15 USART 2MBps MOSI, MISO SCK, NSS as AF OSC32_IN OSC_OUT 16b PWM CH as AF CH as AF16b RTC Interface FIFO TIMER1 CRC APB2 4 PWM,4PWM, ETR,BKIN as F 4 PWM,4PWM, ETR,BKIN as F RTC AWU BKPREG SAI1 APB2 60MHzAPB1 107 AF XTAL 32kHz USB Device PHY FS, SCK, SD, MCLK as AF D+ D- CC1 CC2 MSv60856V1 Note: 16/223 AF: alternate function on I/O pins. DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3 Functional overview 3.1 Arm® Cortex®-M4 core with FPU Functional overview The Arm® Cortex®-M4 with FPU processor is the latest generation of Arm processors for embedded systems. It was developed to provide a low-cost platform that meets the needs of the MCU implementation, with a reduced pin count and with low-power consumption, while delivering outstanding computational performance and an advanced response to interrupts. The Arm® Cortex®-M4 with FPU 32-bit RISC processor features an exceptional codeefficiency, delivering the expected high-performance from an Arm core in a memory size usually associated with 8-bit and 16-bit devices. The processor supports a set of DSP instructions which allows an efficient signal processing and a complex algorithm execution. Its single precision FPU speeds up the software development by using metalanguage development tools to avoid saturation. With its embedded Arm core, the STM32G473xB/xC/xE family is compatible with all Arm tools and software. Figure 1 shows the general block diagram of the STM32G473xB/xC/xE devices. 3.2 Adaptive real-time memory accelerator (ART accelerator) The ART accelerator is a memory accelerator that is optimized for the STM32 industrystandard Arm® Cortex®-M4 processors. It balances the inherent performance advantage of the Arm® Cortex®-M4 over Flash memory technologies, which normally requires the processor to wait for the Flash memory at higher frequencies. 3.3 Memory protection unit The memory protection unit (MPU) is used to manage the CPU accesses to the memory and to prevent one task to accidentally corrupt the memory or the resources used by any other active task. This memory area is organized into up to 8 protected areas, which can be divided in up into 8 subareas each. The protection area sizes range between 32 bytes and the whole 4 gigabytes of addressable memory. The MPU is especially helpful for applications where some critical or certified code has to be protected against the misbehavior of other tasks. It is usually managed by an RTOS (realtime operating system). If a program accesses a memory location that is prohibited by the MPU, the RTOS can detect it and take action. In an RTOS environment, the kernel can dynamically update the MPU area setting based on the process to be executed. The MPU is optional and can be bypassed for applications that do not need it. DS12712 Rev 2 17/223 46 Functional overview 3.4 STM32G473xB STM32G473xC STM32G473xE Embedded Flash memory The STM32G473xB/xC/xE devices feature 512 kbytes of embedded Flash memory which is available for storing programs and data. The Flash interface features: – Single or dual bank operating modes – Read-while-write (RWW) in dual bank mode This feature allows to perform a read operation from one bank while an erase or program operation is performed to the other bank. The dual bank boot is also supported. Flexible protections can be configured thanks to the option bytes: • Readout protection (RDP) to protect the whole memory. Three levels of protection are available: – Level 0: no readout protection – Level 1: memory readout protection; the Flash memory cannot be read from or written to if either the debug features are connected or the boot in RAM or bootloader are selected – Level 2: chip readout protection; the debug features (Cortex-M4 JTAG and serial wire), the boot in RAM and the bootloader selection are disabled (JTAG fuse). This selection is irreversible. • Write protection (WRP): the protected area is protected against erasing and programming. • Proprietary code readout protection (PCROP): a part of the Flash memory can be protected against read and write from third parties. The protected area is execute-only and it can only be reached by the STM32 CPU as an instruction code, while all other accesses (DMA, debug and CPU data read, write and erase) are strictly prohibited. An additional option bit (PCROP_RDP) allows to select if the PCROP area is erased or not when the RDP protection is changed from Level 1 to Level 0. • Securable memory area: a part of Flash memory can be configured by option bytes to be securable. After reset this securable memory area is not secured and it behaves like the remainder of main Flash memory (execute, read, write access). When secured, any access to this securable memory area generates corresponding read/write error. Purpose of the Securable memory area is to protect sensitive code and data (secure keys storage) which can be executed only once at boot, and never again unless a new reset occurs. The Flash memory embeds the error correction code (ECC) feature supporting: 18/223 • Single error detection and correction • Double error detection • The address of the ECC fail can be read in the ECC register • 1 Kbyte (128 double word) OTP (one-time programmable) bytes for user data. The OTP area is available in Bank 1 only. The OTP data cannot be erased and can be written only once. DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.5 Functional overview Embedded SRAM STM32G473xB/xC/xE devices feature 128 Kbytes of embedded SRAM. This SRAM is split into three blocks: 80 Kbytes mapped at address 0x2000 0000 (SRAM1). The CM4 can access the SRAM1 through the System Bus. The first 32 Kbyte of SRAM1 support hardware parity check. • 16 Kbytes mapped at address 0x2001 4000 (SRAM2). The CM4 can access the SRAM2 through the System bus. SRAM2 can be retained in standby modes. • 32 Kbytes mapped at address 0x1000 0000 (CCM SRAM). It is accessed by the CPU through I-Code/D-Code bus for maximum performance. It is also aliased at 0x2001 8000 address to be accessed by all masters (CPU, DMA1, DMA2) through SBUS contiguously to SRAM1 and SRAM2. The CCM SRAM supports hardware parity check and can be write-protected with 1 Kbyte granularity. • The memory can be accessed in read/write at max CPU clock speed with 0 wait states. Multi-AHB bus matrix The 32-bit multi-AHB bus matrix interconnects all the masters (CPU, DMAs) and the slaves (Flash memory, RAM, FSMC, QUADSPI,AHB and APB peripherals). It also ensures a seamless and efficient operation even when several high-speed peripherals work simultaneously. Figure 2. Multi-AHB bus matrix DMA1 DMA2 S-bus D-bus Cortex®-M4 with FPU I-bus 3.6 • DCode ACCEL ICode FLASH 512 KB SRAM1 CCM SRAM SRAM2 AHB1 peripherals AHB2 peripherals QUADSPI BusMatrix-S MS52814V1 DS12712 Rev 2 19/223 46 Functional overview 3.7 STM32G473xB STM32G473xC STM32G473xE Boot modes At startup, a BOOT0 pin (or nBOOT0 option bit) and an nBOOT1 option bit are used to select one of three boot options: • Boot from user Flash • Boot from system memory • Boot from embedded SRAM The BOOT0 value may come from the PB8-BOOT0 pin or from an nBOOT0 option bit depending on the value of a user nBOOT_SEL option bit to free the GPIO pad if needed. The boot loader is located in the system memory. It is used to reprogram the Flash memory by using USART, I2C, SPI, and USB through the DFU (device firmware upgrade). 3.8 CORDIC The CORDIC provides hardware acceleration of certain mathematical functions, notably trigonometric, commonly used in motor control, metering, signal processing and many other applications. It speeds up the calculation of these functions compared to a software implementation, allowing a lower operating frequency, or freeing up processor cycles in order to perform other tasks. Cordic features 3.9 • 24-bit CORDIC rotation engine • Circular and Hyperbolic modes • Rotation and Vectoring modes • Functions: Sine, Cosine, Sinh, Cosh, Atan, Atan2, Atanh, Modulus, Square root, Natural logarithm • Programmable precision up to 20-bit • Fast convergence: 4 bits per clock cycle • Supports 16-bit and 32-bit fixed point input and output formats • Low latency AHB slave interface • Results can be read as soon as ready without polling or interrupt • DMA read and write channels Filter mathematical accelerator (FMAC) The filter mathematical accelerator unit performs arithmetic operations on vectors. It comprises a multiplier/accumulator (MAC) unit, together with address generation logic, which allows it to index vector elements held in local memory. The unit includes support for circular buffers on input and output, which allows digital filters to be implemented. Both finite and infinite impulse response filters can be realized. The unit allows frequent or lengthy filtering operations to be offloaded from the CPU, freeing up the processor for other tasks. In many cases it can accelerate such calculations compared to a software implementation, resulting in a speed-up of time critical tasks. 20/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Functional overview FMAC features 3.10 • 16 x 16-bit multiplier • 24+2-bit accumulator with addition and subtraction • 16-bit input and output data • 256 x 16-bit local memory • Up to three areas can be defined in memory for data buffers (two input, one output), defined by programmable base address pointers and associated size registers • Input and output sample buffers can be circular • Buffer “watermark” feature reduces overhead in interrupt mode • Filter functions: FIR, IIR (direct form 1) • AHB slave interface • DMA read and write data channels Cyclic redundancy check calculation unit (CRC) The CRC (cyclic redundancy check) calculation unit is used to get a CRC code using a configurable generator with polynomial value and size. Among other applications, the CRC-based techniques are used to verify data transmission or storage integrity. In the scope of the EN/IEC 60335-1 standard, they offer a mean to verify the Flash memory integrity. The CRC calculation unit helps to compute a signature of the software during runtime, which can be ulteriorly compared with a reference signature generated at link-time and which can be stored at a given memory location. 3.11 Power supply management 3.11.1 Power supply schemes The STM32G473xB/xC/xE devices require a 1.71 V to 3.6 V VDD operating voltage supply. Several independent supplies, can be provided for specific peripherals: • VDD = 1.71 V to 3.6 V VDD is the external power supply for the I/Os, the internal regulator and the system analog such as reset, power management and internal clocks. It is provided externally through the VDD pins. • VDDA = 1.62 V to 3.6 V (see Section 5: Electrical characteristics for the minimum VDDA voltage required for ADC, DAC, COMP, OPAMP, VREFBUF operation). VDDA is the external analog power supply for A/D converters, D/A converters, voltage reference buffer, operational amplifiers and comparators. The VDDA voltage level is DS12712 Rev 2 21/223 46 Functional overview STM32G473xB STM32G473xC STM32G473xE independent from the VDD voltage and should preferably be connected to VDD when these peripherals are not used. • VBAT = 1.55 V to 3.6 V VBAT is the power supply for RTC, external clock 32 kHz oscillator and backup registers (through power switch) when VDD is not present. • VREF-, VREF+ VREF+ is the input reference voltage for ADCs and DACs. It is also the output of the internal voltage reference buffer when enabled. When VDDA < 2 V VREF+ must be equal to VDDA. When VDDA ≥ 2 V VREF+ must be between 2 V and VDDA. The internal voltage reference buffer supports three output voltages, which are configured with VRS bits in the VREFBUF_CSR register: – VREF+ = 2.048 V – VREF+ = 2.5 V – VREF+ = 2.95 V VREF- is double bonded with VSSA. 3.11.2 Power supply supervisor The device has an integrated ultra-low-power brown-out reset (BOR) active in all modes (except for Shutdown mode). The BOR ensures proper operation of the device after poweron and during power down. The device remains in reset mode when the monitored supply voltage VDD is below a specified threshold, without the need for an external reset circuit. The lowest BOR level is 1.71 V at power on, and other higher thresholds can be selected through option bytes.The device features an embedded programmable voltage detector (PVD) that monitors the VDD power supply and compares it to the VPVD threshold. An interrupt can be generated when VDD drops below the VPVD threshold and/or when VDD is higher than the VPVD threshold. The interrupt service routine can then generate a warning message and/or put the MCU into a safe state. The PVD is enabled by software. In addition, the device embeds a peripheral voltage monitor which compares the independent supply voltages VDDA, with a fixed threshold in order to ensure that the peripheral is in its functional supply range. 3.11.3 Voltage regulator Two embedded linear voltage regulators, main regulator (MR) and low-power regulator (LPR), supply most of digital circuitry in the device. The MR is used in Run and Sleep modes. The LPR is used in Low-power run, Low-power sleep and Stop modes. In Standby and Shutdown modes, both regulators are powered down and their outputs set in highimpedance state, such as to bring their current consumption close to zero. The device supports dynamic voltage scaling to optimize its power consumption in Run mode. the voltage from the main regulator that supplies the logic (VCORE) can be adjusted according to the system’s maximum operating frequency. The main regulator (MR) operates in the following ranges: 22/223 • Range 1 boost mode with the CPU running at up to 170 MHz. • Range 1 normal mode with CPU running at up to 150 MHz. • Range 2 with a maximum CPU frequency of 26 MHz. DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.11.4 Functional overview Low-power modes By default, the microcontroller is in Run mode after system or power Reset. It is up to the user to select one of the low-power modes described below: 3.11.5 • Sleep mode: In Sleep mode, only the CPU is stopped. All peripherals continue to operate and can wake up the CPU when an interrupt/event occurs. • Low-power run mode: This mode is achieved with VCORE supplied by the low-power regulator to minimize the regulator's operating current. The code can be executed from SRAM or from Flash, and the CPU frequency is limited to 2 MHz. The peripherals with independent clock can be clocked by HSI16. • Low-power sleep mode: This mode is entered from the low-power run mode. Only the CPU clock is stopped. When wakeup is triggered by an event or an interrupt, the system reverts to the Low power run mode. • Stop mode: In Stop mode, the device achieves the lowest power consumption while retaining the SRAM and register contents. All clocks in the VCORE domain are stopped. The PLL, as well as the HSI16 RC oscillator and the HSE crystal oscillator are disabled. The LSE or LSI keep running. The RTC can remain active (Stop mode with RTC, Stop mode without RTC). Some peripherals with wakeup capability can enable the HSI16 RC during Stop mode, so as to get clock for processing the wakeup event. • Standby mode: The Standby mode is used to achieve the lowest power consumption with brown-out reset, BOR. The internal regulator is switched off to power down the VCORE domain. The PLL, as well as the HSI16 RC oscillator and the HSE crystal oscillator are also powered down. The RTC can remain active (Standby mode with RTC, Standby mode without RTC). The BOR always remains active in Standby mode. For each I/O, the software can determine whether a pull-up, a pull-down or no resistor shall be applied to that I/O during Standby mode. Upon entering Standby mode, SRAM and register contents are lost except for registers in the RTC domain and standby circuitry. The device exits Standby mode upon external reset event (NRST pin), IWDG reset event, wakeup event (WKUP pin, configurable rising or falling edge) or RTC event (alarm, periodic wakeup, timestamp, tamper), or when a failure is detected on LSE (CSS on LSE). • Shutdown mode: The Shutdown mode allows to achieve the lowest power consumption. The internal regulator is switched off to power down the VCORE domain. The PLL, as well as the HSI16 and LSI RC-oscillators and HSE crystal oscillator are also powered down. The RTC can remain active (Shutdown mode with RTC, Shutdown mode without RTC). The BOR is not available in Shutdown mode. No power voltage monitoring is possible in this mode. Therefore, switching to RTC domain is not supported. SRAM and register contents are lost except for registers in the RTC domain. The device exits Shutdown mode upon external reset event (NRST pin), IWDG reset event, wakeup event (WKUP pin, configurable rising or falling edge) or RTC event (alarm, periodic wakeup, timestamp, tamper). Reset mode In order to improve the consumption under reset, the I/Os state under and after reset is “analog state” (the I/O schmitt trigger is disabled). In addition, the internal reset pull-up is deactivated when the reset source is internal. DS12712 Rev 2 23/223 46 Functional overview 3.11.6 STM32G473xB STM32G473xC STM32G473xE VBAT operation The VBAT pin allows to power the device VBAT domain from an external battery, an external supercapacitor, or from VDD when there is no external battery and when an external supercapacitor is present. The VBAT pin supplies the RTC with LSE and the backup registers. Three anti-tamper detection pins are available in VBAT mode. The VBAT operation is automatically activated when VDD is not present. An internal VBAT battery charging circuit is embedded and can be activated when VDD is present. Note: 24/223 When the microcontroller is supplied from VBAT, neither external interrupts nor RTC alarm/events exit the microcontroller from the VBAT operation. DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.12 Functional overview Interconnect matrix Several peripherals have direct connections between them. This allows autonomous communication between peripherals, saving CPU resources thus power supply consumption. In addition, these hardware connections allow fast and predictable latency. Depending on peripherals, these interconnections can operate in Run, Sleep and Stop modes. Run Sleep Low-power run Low-power sleep Stop Table 3. STM32G473xB/xC/xE peripherals interconnect matrix TIMx Timers synchronization or chaining Y Y Y Y - ADCx DACx Conversion triggers Y Y Y Y - DMA Memory to memory transfer trigger Y Y Y Y - COMPx Comparator output blanking Y Y Y Y - IRTIM Infrared interface output generation Y Y Y Y - TIM1, 8, 20 TIM2, 3, 4, 5 Timer input channel, trigger, break from analog signals comparison Y Y Y Y - LPTIMER1 Low-power timer triggered by analog signals comparison Y Y Y Y Y TIM1, 8, 20 Timer triggered by analog watchdog Y Y Y Y - TIM16 Timer input channel from RTC events Y Y Y Y - LPTIMER1 Low-power timer triggered by RTC alarms or tampers Y Y Y Y Y All clocks sources (internal and external) TIM5, TIM15, 16, 17 Clock source used as input channel for RC measurement and trimming Y Y Y Y - USB TIM2 Timer triggered by USB SOF Y Y - - - CSS RAM (parity error) Flash memory (ECC error) COMPx PVD TIM1,8, 20 TIM15,16,17 Timer break Y Y Y Y - CPU (hard fault) TIM1,8,20 TIM15/16/17 Timer break Y Y Y Y - Interconnect source TIMx TIM16/TIM17 COMPx ADCx RTC Interconnect destination Interconnect action DS12712 Rev 2 25/223 46 Functional overview STM32G473xB STM32G473xC STM32G473xE 26/223 Low-power run Low-power sleep Stop GPIO Sleep Interconnect source Run Table 3. STM32G473xB/xC/xE peripherals interconnect matrix (continued) TIMx External trigger Y Y Y Y - LPTIMER1 External trigger Y Y Y Y Y ADCx DACx Conversion external trigger Y Y Y Y - Interconnect destination Interconnect action DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.13 Functional overview Clocks and startup The clock controller distributes the clocks coming from different oscillators to the core and the peripherals. It also manages clock gating for low-power modes and ensures clock robustness. It features: • Clock prescaler: to get the best trade-off between speed and current consumption, the clock frequency to the CPU and peripherals can be adjusted by a programmable prescaler • Safe clock switching: clock sources can be changed safely on the fly in run mode through a configuration register. • Clock management: to reduce power consumption, the clock controller can stop the clock to the core, individual peripherals or memory. • System clock source: three different sources can deliver SYSCLK system clock: • – 4 - 48 MHz high-speed oscillator with external crystal or ceramic resonator (HSE). It can supply clock to system PLL. The HSE can also be configured in bypass mode for an external clock. – 16 MHz high-speed internal RC oscillator (HSI16), trimmable by software. It can supply clock to system PLL. – System PLL with maximum output frequency of 170 MHz. It can be fed with HSE or HSI16 clocks. Auxiliary clock source: two ultra-low-power clock sources for the real-time clock (RTC): – 32.768 kHz low-speed oscillator with external crystal (LSE), supporting four drive capability modes. The LSE can also be configured in bypass mode for using an external clock. – 32 kHz low-speed internal RC oscillator (LSI) with ±5% accuracy, also used to clock an independent watchdog. • Peripheral clock sources: several peripherals (I2S, USART, I2C, LPTimer, ADC, SAI, RNG) have their own clock independent of the system clock. • Clock security system (CSS): in the event of HSE clock failure, the system clock is automatically switched to HSI16 and, if enabled, a software interrupt is generated. LSE clock failure can also be detected and generate an interrupt. • Clock-out capability: – MCO: microcontroller clock output: it outputs one of the internal clocks for external use by the application – LSCO: low speed clock output: it outputs LSI or LSE in all low-power modes. Several prescalers allow to configure the AHB frequency, the High-speed APB (APB2) and the low speed APB (APB1) domains. The maximum frequency of the AHB and the APB domains is 170 MHz. DS12712 Rev 2 27/223 46 Functional overview 3.14 STM32G473xB STM32G473xC STM32G473xE General-purpose inputs/outputs (GPIOs) Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as input (with or without pull-up or pull-down) or as peripheral alternate function. Most of the GPIO pins are shared with digital or analog alternate functions. Fast I/O toggling can be achieved thanks to their mapping on the AHB2 bus. The I/Os alternate function configuration can be locked if needed following a specific sequence in order to avoid spurious writing to the I/Os registers. 3.15 Direct memory access controller (DMA) The device embeds 2 DMAs. Refer to Table 4: DMA implementation for the features implementation. Direct memory access (DMA) is used in order to provide a high-speed data transfer between peripherals and memory as well as from memory to memory. Data can be quickly moved by DMA without any CPU actions. This keeps the CPU resources free for other operations. The two DMA controllers have 16 channels in total, each one dedicated to manage memory access requests from one or more peripherals. Each controller has an arbiter for handling the priority between DMA requests. The DMA supports: • 16 independently configurable channels (requests) – Each channel is connected to a dedicated hardware DMA request, a software trigger is also supported on each channel. This configuration is done by software. • Priorities between requests from channels of one DMA are both software programmable (4 levels: very high, high, medium, low) or hardware programmable in case of equality (request 1 has priority over request 2, etc.) • Independent source and destination transfer size (byte, half word, word), emulating packing and unpacking. Source/destination addresses must be aligned on the data size. • Support for circular buffer management • 3 event flags (DMA half transfer, DMA transfer complete and DMA transfer error) logically ORed together in a single interrupt request for each channel • Memory-to-memory transfer • Peripheral-to-memory, memory-to-peripheral, and peripheral-to-peripheral transfers • Access to Flash, SRAM, APB and AHB peripherals as source and destination • Programmable number of data to be transferred: up to 65536. Table 4. DMA implementation 28/223 DMA features DMA1 DMA2 Number of regular channels 8 8 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.16 Functional overview DMA request router (DMAMux) When a peripheral indicates a request for DMA transfer by setting its DMA request line, the DMA request is pending until it is served and the corresponding DMA request line is reset. The DMA request router allows to route the DMA control lines between the peripherals and the DMA controllers of the product. An embedded multi-channel DMA request generator can be considered as one of such peripherals. The routing function is ensured by a multi-channel DMA request line multiplexer. Each channel selects a unique set of DMA control lines, unconditionally or synchronously with events on synchronization inputs. For simplicity, the functional description is limited to DMA request lines. The other DMA control lines are not shown in figures or described in the text. The DMA request generator produces DMA requests following events on DMA request trigger inputs. 3.17 Interrupts and events 3.17.1 Nested vectored interrupt controller (NVIC) The STM32G473xB/xC/xE devices embed a nested vectored interrupt controller which is able to manage 16 priority levels, and to handle up to 102 maskable interrupt channels plus the 16 interrupt lines of the Cortex®-M4. The NVIC benefits are the following: • Closely coupled NVIC gives low latency interrupt processing • Interrupt entry vector table address passed directly to the core • Allows early processing of interrupts • Processing of late arriving higher priority interrupts • Support for tail chaining • Processor state automatically saved • Interrupt entry restored on interrupt exit with no instruction overhead The NVIC hardware block provides flexible interrupt management features with minimal interrupt latency. 3.17.2 Extended interrupt/event controller (EXTI) The extended interrupt/event controller consists of 44 edge detector lines used to generate interrupt/event requests and to wake-up the system from the Stop mode. Each external line can be independently configured to select the trigger event (rising edge, falling edge, both) and can be masked independently. A pending register maintains the status of the interrupt requests. The internal lines are connected to peripherals with wakeup from Stop mode capability. The EXTI can detect an external line with a pulse width shorter than the internal clock period. Up to 107 GPIOs can be connected to the 16 external interrupt lines. DS12712 Rev 2 29/223 46 Functional overview 3.18 STM32G473xB STM32G473xC STM32G473xE Analog-to-digital converter (ADC) The device embeds five successive approximation analog-to-digital converters with the following features: • 12-bit native resolution, with built-in calibration • 4 Msps maximum conversion rate with full resolution Down to 25 ns sampling time – Increased conversion rate for lower resolution (up to 6.66 Msps for 6-bit resolution) • One external reference pin is available on all packages, allowing the input voltage range to be independent from the power supply • Single-ended and differential mode inputs • Low-power design • 3.18.1 – – Capable of low-current operation at low conversion rate (consumption decreases linearly with speed) – Dual clock domain architecture: ADC speed independent from CPU frequency Highly versatile digital interface – Single-shot or continuous/discontinuous sequencer-based scan mode: 2 groups of analog signals conversions can be programmed to differentiate background and high-priority real-time conversions – Each ADC support multiple trigger inputs for synchronization with on-chip timers and external signals – Results stored into a data register or in RAM with DMA controller support – Data pre-processing: left/right alignment and per channel offset compensation – Built-in oversampling unit for enhanced SNR – Channel-wise programmable sampling time – Analog watchdog for automatic voltage monitoring, generating interrupts and trigger for selected timers – Hardware assistant to prepare the context of the injected channels to allow fast context switching – Flexible sample time control – Hardware gain and offset compensation Temperature sensor The temperature sensor (TS) generates a voltage VTS that varies linearly with temperature. The temperature sensor is internally connected to the ADCs input channels which is used to convert the sensor output voltage into a digital value. The sensor provides good linearity but it has to be calibrated to obtain good overall accuracy of the temperature measurement. As the offset of the temperature sensor varies from chip to chip due to process variation, the uncalibrated internal temperature sensor is suitable for applications that detect temperature changes only. To improve the accuracy of the temperature sensor measurement, each device is individually factory-calibrated by ST. The temperature sensor factory calibration data are stored by ST in the system memory area, accessible in read-only mode. 30/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Functional overview Table 5. Temperature sensor calibration values 3.18.2 Calibration value name Description Memory address TS_CAL1 TS ADC raw data acquired at a temperature of 30 °C (± 5 °C), VDDA = VREF+ = 3.0 V (± 10 mV) 0x1FFF 75A8 - 0x1FFF 75A9 TS_CAL2 TS ADC raw data acquired at a temperature of 110 °C (± 5 °C), VDDA = VREF+ = 3.0 V (± 10 mV) 0x1FFF 75CA - 0x1FFF 75CB Internal voltage reference (VREFINT) The internal voltage reference (VREFINT) provides a stable (bandgap) voltage output for the ADC and the comparators. The VREFINT is internally connected to the ADCx_IN18, x = 1,3,4,5 input channel. The precise voltage of VREFINT is individually measured for each part by ST during production test and stored in the system memory area. It is accessible in read-only mode. Table 6. Internal voltage reference calibration values 3.18.3 Calibration value name Description Memory address VREFINT Raw data acquired at a temperature of 30 °C (± 5 °C), VDDA = VREF+ = 3.0 V (± 10 mV) 0x1FFF 75AA - 0x1FFF 75AB VBAT battery voltage monitoring This embedded hardware enables the application to measure the VBAT battery voltage using the internal ADC1_IN17 channel. As the VBAT voltage may be higher than the VDDA, and thus outside the ADC input range, the VBAT pin is internally connected to a bridge divider by 3. As a consequence, the converted digital value is one third of the VBAT voltage. 3.18.4 Operational amplifier internal output (OPAMPxINT): The OPAMPx (x = 1...6) output OPAMPxINT can be sampled using an ADCx (x = 1...5) internal input channel. In this case, the I/O on which the OPAMPx output is mapped can be used as GPIO. 3.19 Digital to analog converter (DAC) Seven 12 bit DAC channels (3 external buffered and 4 internal unbuffered) can be used to convert digital signals into analog voltage signal outputs. The chosen design structure is composed of integrated resistor strings and an amplifier in inverting configuration. DS12712 Rev 2 31/223 46 Functional overview STM32G473xB STM32G473xC STM32G473xE This digital interface supports the following features: • Up to two DAC output channels • 8-bit or 12-bit output mode • Buffer offset calibration (factory and user trimming) • Left or right data alignment in 12-bit mode • Synchronized update capability • Noise-wave generation • Triangular-wave generation • Saw tooth wave generation • Dual DAC channel independent or simultaneous conversions • DMA capability for each channel • External triggers for conversion • Sample and hold low-power mode, with internal or external capacitor • Up to 1 Msps for external output and 15 Msps for internal output The DAC channels are triggered through the timer update outputs that are also connected to different DMA channels. 3.20 Voltage reference buffer (VREFBUF) The STM32G473xB/xC/xE devices embed a voltage reference buffer which can be used as voltage reference for ADC, DACs and also as voltage reference for external components through the VREF+ pin. The internal voltage reference buffer supports three voltages: • 2.048 V • 2.5 V • 2.9 V An external voltage reference can be provided through the VREF+ pin when the internal voltage reference buffer is off. The VREF+ pin is double-bonded with VDDA on some packages. In these packages the internal voltage reference buffer is not available. Figure 3. Voltage reference buffer VREFBUF VDDA Bandgap + DAC, ADC VREF+ Low frequency cut-off capacitor 100 nF MSv40197V1 32/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.21 Functional overview Comparators (COMP) The STM32G473xB/xC/xE devices embed seven rail-to-rail comparators with programmable reference voltage (internal or external), hysteresis. The reference voltage can be one of the following: • External I/O • DAC output channels • Internal reference voltage or submultiple (1/4, 1/2, 3/4). All comparators can wake up from Stop mode, generate interrupts and breaks for the timers. 3.22 Operational amplifier (OPAMP) The STM32G473xB/xC/xE devices embed six operational amplifiers with external or internal follower routing and PGA capability. The operational amplifier features: 3.23 • 15 MHz bandwidth • Rail-to-rail input/output • PGA with a non-inverting gain ranging of 2, 4, 8, 16, 32 or 64 or inverting gain ranging of -1, -3, -7, -15, -31 or -63 Random number generator (RNG) All devices embed an RNG that delivers 32-bit random numbers generated by an integrated analog circuit. 3.24 Timers and watchdogs The STM32G473xB/xC/xE devices include two advanced motor control timers, up to nine general-purpose timers, two basic timers, one low-power timer, two watchdog timers and a SysTick timer. The table below compares the features of the advanced motor control, general purpose and basic timers. Table 7. Timer feature comparison DMA request generation Capture/ compare channels Complementary outputs Up, Any integer down, between 1 and Up/down 65536 Yes 4 4 32-bit Up, Any integer down, between 1 and Up/down 65536 Yes 4 No 16-bit Up, Any integer down, between 1 and Up/down 65536 Yes 4 No Timer type Timer Counter resolution Advanced motor control TIM1, TIM8, TIM20 16-bit Generalpurpose TIM2, TIM5 Generalpurpose TIM3, TIM4 Counter type Prescaler factor DS12712 Rev 2 33/223 46 Functional overview STM32G473xB STM32G473xC STM32G473xE Table 7. Timer feature comparison (continued) Timer type Timer Counter resolution Counter type Prescaler factor DMA request generation Capture/ compare channels Complementary outputs Generalpurpose TIM15 16-bit Up Any integer between 1 and 65536 Yes 2 1 Generalpurpose TIM16, TIM17 16-bit Up Any integer between 1 and 65536 Yes 1 1 Basic TIM6, TIM7 16-bit Up Any integer between 1 and 65536 Yes 0 No 3.24.1 Advanced motor control timer (TIM1, TIM8, TIM20) The advanced motor control timers can each be seen as a four-phase PWM multiplexed on 8 channels. They have complementary PWM outputs with programmable inserted dead-times. They can also be seen as complete general-purpose timers. The 4 independent channels can be used for: • Input capture • Output compare • PWM generation (edge or center-aligned modes) with full modulation capability (0-100%) • One-pulse mode output In debug mode, the advanced motor control timer counter can be frozen and the PWM outputs disabled in order to turn off any power switches driven by these outputs. Many features are shared with the general-purpose TIMx timers (described in Section 3.24.2) using the same architecture, so the advanced motor control timers can work together with the TIMx timers via the Timer Link feature for synchronization or event chaining. 34/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.24.2 Functional overview General-purpose timers (TIM2, TIM3, TIM4, TIM5, TIM15, TIM16, TIM17) There are up to seven synchronizable general-purpose timers embedded in the STM32G473xB/xC/xE devices (see Table 7 for differences). Each general-purpose timer can be used to generate PWM outputs, or act as a simple time base. • TIM2, TIM3, TIM4 and TIM5 They are full-featured general-purpose timers: – TIM2 and TIM5 have a 32-bit auto-reload up/downcounter and 32-bit prescaler – TIM3 and TIM4 have 16-bit auto-reload up/downcounter and 16-bit prescaler. These timers feature 4 independent channels for input capture/output compare, PWM or one-pulse mode output. They can work together, or with the other general-purpose timers via the Timer Link feature for synchronization or event chaining. The counters can be frozen in debug mode. All have independent DMA request generation and support quadrature encoders. • TIM15, 16 and 17 They are general-purpose timers with mid-range features: They have 16-bit auto-reload upcounters and 16-bit prescalers. – TIM15 has 2 channels and 1 complementary channel – TIM16 and TIM17 have 1 channel and 1 complementary channel All channels can be used for input capture/output compare, PWM or one-pulse mode output. The timers can work together via the Timer Link feature for synchronization or event chaining. The timers have independent DMA request generation. The counters can be frozen in debug mode. 3.24.3 Basic timers (TIM6 and TIM7) The basic timers are mainly used for DAC trigger generation. They can also be used as generic 16-bit timebases. DS12712 Rev 2 35/223 46 Functional overview 3.24.4 STM32G473xB STM32G473xC STM32G473xE Low-power timer (LPTIM1) The devices embed a low-power timer. This timer has an independent clock and are running in Stop mode if it is clocked by LSE, LSI or an external clock. It is able to wakeup the system from Stop mode. LPTIM1 is active in Stop mode. This low-power timer supports the following features: 3.24.5 • 16-bit up counter with 16-bit autoreload register • 16-bit compare register • Configurable output: pulse, PWM • Continuous/ one shot mode • Selectable software/hardware input trigger • Selectable clock source – Internal clock sources: LSE, LSI, HSI16 or APB clock – External clock source over LPTIM input (working even with no internal clock source running, used by pulse counter application). • Programmable digital glitch filter • Encoder mode Independent watchdog (IWDG) The independent watchdog is based on a 12-bit downcounter and an 8-bit prescaler. It is clocked from an independent 32 kHz internal RC (LSI) and as it operates independently from the main clock, it can operate in Stop and Standby modes. It can be used either as a watchdog to reset the device when a problem occurs, or as a free running timer for application timeout management. It is hardware or software configurable through the option bytes. The counter can be frozen in debug mode. 3.24.6 System window watchdog (WWDG) The window watchdog is based on a 7-bit downcounter that can be set as free running. It can be used as a watchdog to reset the device when a problem occurs. It is clocked from the main clock. It has an early warning interrupt capability and the counter can be frozen in debug mode. 3.24.7 SysTick timer This timer is dedicated to real-time operating systems, but could also be used as a standard down counter. It features: 36/223 • A 24-bit down counter • Autoreload capability • Maskable system interrupt generation when the counter reaches 0. • Programmable clock source DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.25 Functional overview Real-time clock (RTC) and backup registers The RTC supports the following features: • Calendar with subsecond, seconds, minutes, hours (12 or 24 format), week day, date, month, year, in BCD (binary-coded decimal) format. • Automatic correction for 28, 29 (leap year), 30, and 31 days of the month. • Two programmable alarms. • On-the-fly correction from 1 to 32767 RTC clock pulses. This can be used to synchronize it with a master clock. • Reference clock detection: a more precise second source clock (50 or 60 Hz) can be used to enhance the calendar precision. • Digital calibration circuit with 0.95 ppm resolution, to compensate for quartz crystal inaccuracy. • Timestamp feature which can be used to save the calendar content. This function can be triggered by an event on the timestamp pin, or by a tamper event, or by a switch to VBAT mode. • 17-bit auto-reload wakeup timer (WUT) for periodic events with programmable resolution and period. The RTC is supplied through a switch that takes power either from the VDD supply when present or from the VBAT pin. The RTC clock sources can be: • A 32.768 kHz external crystal (LSE) • An external resonator or oscillator (LSE) • The internal low power RC oscillator (LSI, with typical frequency of 32 kHz) • The high-speed external clock (HSE) divided by 32. The RTC is functional in VBAT mode and in all low-power modes when it is clocked by the LSE. When clocked by the LSI, the RTC is not functional in VBAT mode, but is functional in all low-power modes except Shutdown mode. All RTC events (Alarm, WakeUp Timer, Timestamp) can generate an interrupt and wakeup the device from the low-power modes. 3.26 Tamper and backup registers (TAMP) • 32 32-bit backup registers, retained in all low-power modes and also in VBAT mode. They can be used to store sensitive data as their content is protected by an tamper detection circuit. They are not reset by a system or power reset, or when the device wakes up from Standby or Shutdown mode. • Up to three tamper pins for external tamper detection events. The external tamper pins can be configured for edge detection, edge and level, level detection with filtering. • Five internal tampers events. • Any tamper detection can generate a RTC timestamp event. • Any tamper detection erases the backup registers. • Any tamper detection can generate an interrupt and wake-up the device from all lowpower modes. DS12712 Rev 2 37/223 46 Functional overview 3.27 STM32G473xB STM32G473xC STM32G473xE Infrared transmitter The STM32G473xB/xC/xE devices provide an infrared transmitter solution. The solution is based on internal connections between TIM16 and TIM17 as shown in the figure below. TIM17 is used to provide the carrier frequency and TIM16 provides the main signal to be sent. The infrared output signal is available on PB9 or PA13. To generate the infrared remote control signals, TIM16 channel 1 and TIM17 channel 1 must be properly configured to generate correct waveforms. All standard IR pulse modulation modes can be obtained by programming the two timers output compare channels. Figure 4. Infrared transmitter TIM17_CH1 IRTIM IR_OUT TIM16_CH1 MS30474V2 38/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 3.28 Functional overview Inter-integrated circuit interface (I2C) The device embeds four I2Cs. Refer to Table 8: I2C implementation for the features implementation. The I2C bus interface handles communications between the microcontroller and the serial I2C bus. It controls all I2C bus-specific sequencing, protocol, arbitration and timing. The I2C peripheral supports: • • I2C-bus specification and user manual rev. 5 compatibility: – Slave and master modes, multimaster capability – Standard-mode (Sm), with a bitrate up to 100 kbit/s – Fast-mode (Fm), with a bitrate up to 400 kbit/s – Fast-mode Plus (Fm+), with a bitrate up to 1 Mbit/s and 20 mA output drive I/Os – 7-bit and 10-bit addressing mode, multiple 7-bit slave addresses – Programmable setup and hold times – Optional clock stretching System management bus (SMBus) specification rev 2.0 compatibility: – Hardware PEC (packet error checking) generation and verification with ACK control – Address resolution protocol (ARP) support – SMBus alert • Power system management protocol (PMBusTM) specification rev 1.1 compatibility • Independent clock: a choice of independent clock sources allowing the I2C communication speed to be independent from the PCLK reprogramming. • Wakeup from Stop mode on address match • Programmable analog and digital noise filters • 1-byte buffer with DMA capability Table 8. I2C implementation I2C features(1) I2C1 I2C2 I2C3 I2C4 Standard-mode (up to 100 kbit/s) X X X X Fast-mode (up to 400 kbit/s) X X X X Fast-mode Plus with 20mA output drive I/Os (up to 1 Mbit/s) X X X X Programmable analog and digital noise filters X X X X SMBus/PMBus hardware support X X X X Independent clock X X X X Wakeup from Stop mode on address match X X X X 1. X: supported DS12712 Rev 2 39/223 46 Functional overview 3.29 STM32G473xB STM32G473xC STM32G473xE Universal synchronous/asynchronous receiver transmitter (USART) The STM32G473xB/xC/xE devices have three embedded universal synchronous receiver transmitters (USART1, USART2 and USART3) and two universal asynchronous receiver transmitters (UART4, USART5). These interfaces provide asynchronous communication, IrDA SIR ENDEC support, multiprocessor communication mode, single-wire half-duplex communication mode and have LIN master/slave capability. They provide hardware management of the CTS and RTS signals, and RS485 driver enable. The USART1, USART2 and USART3 also provide a Smartcard mode (ISO 7816 compliant) and an SPI-like communication capability. The USART comes with a Transmit FIFO (TXFIFO) and a Receive FIFO (RXFIFO). FIFO mode is enabled by software and is disabled by default. All USART have a clock domain independent from the CPU clock, allowing the U(S)ARTx (x=1,2,3,4,5) to wake up the MCU from Stop mode. The wakeup from Stop mode can be done on: • Start bit detection • Any received data frame • A specific programmed data frame • Some specific TXFIFO/RXFIFO status interrupts when FIFO mode is enabled All USART interfaces can be served by the DMA controller. Table 9. USART/UART/LPUART features USART modes/features(1) USART1 USART2 USART3 UART4 UART5 LPUART1 Hardware flow control for modem X X X X X X Continuous communication using DMA X X X X X X Multiprocessor communication X X X X X X Synchronous mode X X X - - - Smartcard mode X X X - - - Single-wire half-duplex communication X X X X X X IrDA SIR ENDEC block X X X X X - LIN mode X X X X X - Dual clock domain X X X X X X Wakeup from Stop mode X X X X X X Receiver timeout interrupt X X X X X - Modbus communication X X X X X - Auto baud rate detection Driver Enable X (4 modes) X X LPUART/USART data length 40/223 X X 7, 8 and 9 bits DS12712 Rev 2 X X STM32G473xB STM32G473xC STM32G473xE Functional overview Table 9. USART/UART/LPUART features (continued) USART modes/features(1) USART1 USART2 USART3 UART4 Tx/Rx FIFO X Tx/Rx FIFO size 8 UART5 LPUART1 1. X = supported. 3.30 Low-power universal asynchronous receiver transmitter (LPUART) The STM32G473xB/xC/xE devices embed one Low-Power UART. The LPUART supports asynchronous serial communication with minimum power consumption. It supports halfduplex single-wire communication and modem operations (CTS/RTS). It allows multiprocessor communication. The LPUART comes with a Transmit FIFO (TXFIFO) and a Receive FIFO (RXFIFO). FIFO mode is enabled by software and is disabled by default. It has a clock domain independent from the CPU clock, and can wakeup the system from Stop mode. The wake up from Stop mode can be done on: • Start bit detection • Any received data frame • A specific programmed data frame • Some specific TXFIFO/RXFIFO status interrupts when FIFO mode is enabled Only a 32.768 kHz clock (LSE) is needed to allow LPUART communication up to 9600 baud. Therefore, even in Stop mode, the LPUART can wait for an incoming frame while having an extremely low energy consumption. Higher speed clock can be used to reach higher baudrates. The LPUART interface can be served by the DMA controller. 3.31 Serial peripheral interface (SPI) Four SPI interfaces allow communication up to 75 Mbits/s in master and up to 41 Mbits/s in slave, half-duplex, full-duplex and simplex modes. The 3-bit prescaler gives 8 master mode frequencies and the frame size is configurable from 4 bits to 16 bits. The SPI interfaces support NSS pulse mode, TI mode and hardware CRC calculation. Two standard I2S interfaces (multiplexed with SPI2 and SPI3) supporting four different audio standards can operate as master or slave at half-duplex communication modes. They can be configured to transfer 16 and 24 or 32 bits with 16-bit or 32-bit data resolution and synchronized by a specific signal. Audio sampling frequency from 8 kHz up to 192 kHz can be set by 8-bit programmable linear prescaler. When operating in master mode it can output a clock for an external audio component at 256 times the sampling frequency. All SPI interfaces can be served by the DMA controller. DS12712 Rev 2 41/223 46 Functional overview 3.32 STM32G473xB STM32G473xC STM32G473xE Serial audio interfaces (SAI) The device embeds 1 SAI. The SAI bus interface handles communications between the microcontroller and the serial audio protocol. SAI peripheral supports: • Two independent audio sub-blocks which can be transmitters or receivers with their respective FIFO. • 8-word integrated FIFOs for each audio sub-block. • Synchronous or asynchronous mode between the audio sub-blocks. • Master or slave configuration independent for both audio sub-blocks. • Clock generator for each audio block to target independent audio frequency sampling when both audio sub-blocks are configured in master mode. • Data size configurable: 8-, 10-, 16-, 20-, 24-, 32-bit. • Peripheral with large configurability and flexibility allowing to target as example the following audio protocol: I2S, LSB or MSB-justified, PCM/DSP, TDM, AC’97 and SPDIF out. • Up to 16 slots available with configurable size and with the possibility to select which ones are active in the audio frame. • Number of bits by frame may be configurable. • Frame synchronization active level configurable (offset, bit length, level). • First active bit position in the slot is configurable. • LSB first or MSB first for data transfer. • Mute mode. • Stereo/Mono audio frame capability. • Communication clock strobing edge configurable (SCK). • Error flags with associated interrupts if enabled respectively. • • – Overrun and underrun detection. – Anticipated frame synchronization signal detection in slave mode. – Late frame synchronization signal detection in slave mode. – Codec not ready for the AC’97 mode in reception. Interruption sources when enabled: – Errors. – FIFO requests. DMA interface with 2 dedicated channels to handle access to the dedicated integrated FIFO of each SAI audio sub-block. Table 10. SAI implementation for the features implementation SAI features 42/223 Support(1) I2S, LSB or MSB-justified, PCM/DSP, TDM, AC’97 X Mute mode X Stereo/Mono audio frame capability X 16 slots X DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Functional overview Table 10. SAI implementation for the features implementation (continued) SAI features Data size configurable: 8-, 10-, 16-, 20-, 24-, 32-bit FIFO size Support(1) X X (8 word) SPDIF X 1. X: supported. 3.33 Controller area network (FDCAN1, FDCAN2, FDCAN3) The controller area network (CAN) subsystem consists of three CAN modules and a shared message RAM memory. The three CAN modules (FDCAN1, FDCAN2 and FDCAN3) are compliant with ISO 11898-1 (CAN protocol specification version 2.0 part A, B) and CAN FD protocol specification version 1.0. A 3-Kbyte message RAM memory implements filters, receive FIFOs, receive buffers, transmit event FIFOs, transmit buffers. This message RAM is shared between the three FDCAN modules. 3.34 Universal serial bus (USB) The STM32G473xB/xC/xE devices embed a full-speed USB device peripheral compliant with the USB specification version 2.0. The internal USB PHY supports USB FS signaling, embedded DP pull-up and also battery charging detection according to Battery Charging Specification Revision 1.2. The USB interface implements a full-speed (12 Mbit/s) function interface with added support for USB 2.0 Link Power Management. It has softwareconfigurable endpoint setting with packet memory up-to 1 Kbyte and suspend/resume support. It requires a precise 48 MHz clock which can be generated from the internal main PLL (the clock source must use a HSE crystal oscillator) or by the internal 48 MHz oscillator in automatic trimming mode. The synchronization for this oscillator can be taken from the USB data stream itself (SOF signalization) which allows crystal less operation. 3.35 USB Type-C™ / USB Power Delivery controller (UCPD) The device embeds one controller (UCPD) compliant with USB Type-C Rev. 1.2 and USB Power Delivery Rev. 3.0 specifications. The controller uses specific I/Os supporting the USB Type-C and USB Power Delivery requirements, featuring: • USB Type-C pull-up (Rp, all values) and pull-down (Rd) resistors • “Dead battery” support • USB Power Delivery message transmission and reception • FRS (fast role swap) support DS12712 Rev 2 43/223 46 Functional overview STM32G473xB STM32G473xC STM32G473xE The digital controller handles notably: • USB Type-C level detection with de-bounce, generating interrupts • FRS detection, generating an interrupt • Byte-level interface for USB Power Delivery payload, generating interrupts (DMA compatible) • USB Power Delivery timing dividers (including a clock pre-scaler) • CRC generation/checking • 4b5b encode/decode • Ordered sets (with a programmable ordered set mask at receive) • Frequency recovery in receiver during preamble The interface offers low-power operation compatible with Stop mode, maintaining the capacity to detect incoming USB Power Delivery messages and FRS signaling. 3.36 Clock recovery system (CRS) The devices embed a special block which allows automatic trimming of the internal 48 MHz oscillator to guarantee its optimal accuracy over the whole device operational range. This automatic trimming is based on the external synchronization signal, which could be either derived from USB SOF signalization, from LSE oscillator, from an external signal on CRS_SYNC pin or generated by user software. For faster lock-in during startup it is also possible to combine automatic trimming with manual trimming action. 3.37 Flexible static memory controller (FSMC) The Flexible static memory controller (FSMC) includes two memory controllers: • The NOR/PSRAM memory controller • The NAND/memory controller This memory controller is also named Flexible memory controller (FMC). The main features of the FMC controller are the following: • 44/223 Interface with static-memory mapped devices including: – Static random access memory (SRAM) – NOR Flash memory/OneNAND Flash memory – PSRAM (4 memory banks) – NAND Flash memory with ECC hardware to check up to 8 Kbytes of data – Ferroelectric RAM (FRAM) • 8-,16- bit data bus width • Independent Chip Select control for each memory bank • Independent configuration for each memory bank • Write FIFO • The Maximum FMC_CLK frequency for synchronous accesses is HCLK/2. DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Functional overview LCD parallel interface The FMC can be configured to interface seamlessly with most graphic LCD controllers. It supports the Intel 8080 and Motorola 6800 modes, and is flexible enough to adapt to specific LCD interfaces. This LCD parallel interface capability makes it easy to build cost effective graphic applications using LCD modules with embedded controllers or high performance solutions using external controllers with dedicated acceleration. 3.38 Quad SPI memory interface (QUADSPI) The Quad SPI is a specialized communication interface targeting single, dual or quad SPI flash memories. It can operate in any of the three following modes: • Indirect mode: all the operations are performed using the QUADSPI registers • Status polling mode: the external flash status register is periodically read and an interrupt can be generated in case of flag setting • Memory-mapped mode: the external Flash is memory mapped and is seen by the system as if it were an internal memory. Both throughput and capacity can be increased two-fold using dual-flash mode, where two quad SPI flash memories are accessed simultaneously. The Quad SPI interface supports: • Indirect mode: all the operations are performed using the QUADSPI registers • Status polling mode: the external flash status register is periodically read and an interrupt can be generated in case of flag setting • Memory-mapped mode: the external Flash is memory mapped and is seen by the system as if it were an internal memory • Three functional modes: indirect, status-polling, and memory-mapped • SDR and DDR support • Fully programmable opcode for both indirect and memory mapped mode • Fully programmable frame format for both indirect and memory mapped mode – Each of the 5 following phases can be configured independently (enable, length, single/dual/quad communication) – Instruction phase – Address phase – Alternate bytes phase – Dummy cycles phase – Data phase • Integrated FIFO for reception and transmission • 8, 16, and 32-bit data accesses are allowed • DMA channel for indirect mode operations • Programmable masking for external flash flag management • Timeout management • Interrupt generation on FIFO threshold, timeout, status match, operation complete, and access error DS12712 Rev 2 45/223 46 Functional overview STM32G473xB STM32G473xC STM32G473xE 3.39 Development support 3.39.1 Serial wire JTAG debug port (SWJ-DP) The Arm SWJ-DP interface is embedded, and is a combined JTAG and serial wire debug port that enables either a serial wire debug or a JTAG probe to be connected to the target. Debug is performed using 2 pins only instead of 5 required by the JTAG (JTAG pins could be re-use as GPIO with alternate function): the JTAG TMS and TCK pins are shared with SWDIO and SWCLK, respectively, and a specific sequence on the TMS pin is used to switch between JTAG-DP and SW-DP. 3.39.2 Embedded trace macrocell™ The Arm embedded trace macrocell provides a greater visibility of the instruction and data flow inside the CPU core by streaming compressed data at a very high rate from the STM32G473xB/xC/xE devices through a small number of ETM pins to an external hardware trace port analyzer (TPA) device. Real-time instruction and data flow activity be recorded and then formatted for display on the host computer that runs the debugger software. TPA hardware is commercially available from common development tool vendors. The Embedded trace macrocell operates with third party debugger software tools. 46/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description 4 Pinouts and pin description 4.1 UFQFPN48 pinout description VDD PB9 PB8-BOOT0 PB7 PB6 PB5 PB4 PB3 PC11 PC10 PA15 PA14 48 47 46 45 44 43 42 41 40 39 38 37 Figure 5. STM32G473xB/xC/xE UFQFPN48 pinout VBAT 1 36 PA13 PC13 2 35 VDD PC14-OSC32_IN 3 34 PA12 PC15-OSC32_OUT 4 33 PA11 PF0-OSC_IN 5 32 PA10 PF1-OSC_OUT 6 31 PA9 PG10-NRST 7 30 PA8 PA0 8 29 PC6 PA1 9 28 PB15 PA2 10 27 PB14 PA3 11 26 PB13 PA4 12 25 PB12 UFQFPN48 24 PB11 23 VDD 22 PB10 21 VDDA 20 VREF+ 19 PB2 18 PB1 17 PB0 16 PC4 15 PA7 14 PA6 PA5 13 Exposed pad VSS MS60210V1 1. The above figure shows the package top view 2. VSS pads are connected to the exposed pad. DS12712 Rev 2 47/223 75 Pinouts and pin description 4.2 STM32G473xB STM32G473xC STM32G473xE LQFP48 pinout description 4.3 VDD VSS PB9 PB8-BOOT0 PB7 PB6 PB5 PB4 PB3 PA15 PA14 PA13 48 47 46 45 44 43 42 41 40 39 38 37 Figure 6. STM32G473xB/xC/xE LQFP48 pinout VBAT 1 36 VDD PC13 2 35 VSS PC14 - OSC32_IN 3 34 PA12 PC15 - OSC32_OUT 4 33 PA11 PF0 - OSC_IN 5 32 PA10 PF1 - OSC_OUT 6 31 PA9 PG10 - NRST 7 30 PA8 PA0 8 29 PB15 PA1 9 28 PB14 PA2 10 27 PB13 PA3 11 26 PB12 PA4 12 25 PB11 13 14 15 16 17 18 19 20 21 22 23 24 PA5 PA6 PA7 PB0 PB1 PB2 VSSA VREF+ VDDA PB10 VSS VDD LQFP48 MSv42659V2 LQFP64 pinout description VDD VSS PB9 PB8-BOOT0 PB7 PB6 PB5 PB4 PB3 PD2 PC12 PC11 PC10 PA15 PA14 PA13 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 Figure 7. STM32G473xB/xC/xE LQFP64 pinout VBAT 1 48 VDD PC13 2 47 VSS PC14-OSC32_IN 3 46 PA12 PC15-OSC32_OUT 4 45 PA11 PF0-OSC_IN 5 44 PA10 PF1-OSC_OUT 6 43 PA9 PG10-NRST 7 42 PA8 PC0 8 41 PC9 PC1 9 40 PC8 PC2 10 39 PC7 PC3 11 38 PC6 PA0 12 37 PB15 PA1 13 36 PB14 PA2 14 35 PB13 VSS 15 34 PB12 VDD 16 33 PB11 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PA3 PA4 PA5 PA6 PA7 PC4 PC5 PB0 PB1 PB2 VSSA VREF+ VDDA PB10 VSS VDD LQFP64 1. The above figure shows the package top view. 48/223 DS12712 Rev 2 MSv42658V2 STM32G473xB STM32G473xC STM32G473xE LQFP80 pinout description VDD VSS PB9 PB8-BOOT0 PB7 PB6 PB5 PB4 PB3 PD2 PD1 PD0 PC12 PC11 PC10 PA15 PA14 PA13 VDD VSS 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 Figure 8. STM32G473xB/xC/xE LQFP80 pinout VBAT 1 60 PA12 PC13 2 59 PA11 PC14-OSC32_IN 3 58 PA10 PC15-OSC32_OUT 4 57 PA9 PF0-OSC_IN 5 56 PA8 PF1-OSC_OUT 6 55 PC9 PG10-NRST 7 54 PC8 PC0 8 53 PC7 PC1 9 52 PC6 PC2 10 51 VDD PC3 11 50 VSS PA0 12 49 PD10 PA1 13 48 PD9 PA2 14 47 PD8 VSS 15 46 PB15 VDD 16 45 PB14 PA3 17 44 PB13 PA4 18 43 PB12 PA5 19 42 PB11 PA6 20 41 VDD 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 PA7 PC5 PB0 PB1 PB2 VSSA VREF+ VDDA PE7 PE8 PE9 PE10 PE11 PE12 PE13 PE14 PE15 PB10 VSS LQFP80 PC4 4.4 Pinouts and pin description MSv60826V1 1. The above figure shows the package top view. DS12712 Rev 2 49/223 75 Pinouts and pin description 4.5 STM32G473xB STM32G473xC STM32G473xE LQFP100 pinout description VDD VSS PE1 PE0 PB9 PB8-BOOT0 PB7 PB6 PB5 PB4 PB3 PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 PC12 PC11 PC10 PA15 PA14 PA13 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 Figure 9. STM32G473xB/xC/xE LQFP100 pinout PE2 1 75 VDD PE3 2 74 VSS PE4 3 73 PA12 PE5 4 72 PA11 PE6 5 71 PA10 VBAT 6 70 PA9 PC13 7 69 PA8 PC14-OSC32_IN 8 68 PC9 PC15-OSC32_OUT 9 67 PC8 PF9 10 66 PC7 PF10 11 65 PC6 PF0-OSC_IN 12 64 VDD PF1-OSC_OUT 13 63 VSS PG10-NRST 14 62 PD15 PC0 15 61 PD14 PC1 16 60 PD13 PC2 17 59 PD12 PC3 18 58 PD11 PF2 19 57 PD10 PA0 20 56 PD9 PA1 21 55 PD8 PA2 22 54 PB15 VSS 23 53 PB14 VDD 24 52 PB13 PA3 25 51 PB12 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 PA4 PA5 PA6 PA7 PC4 PC5 PB0 PB1 PB2 VSSA VREF+ VDDA PE7 PE8 PE9 PE10 PE11 PE12 PE13 PE14 PE15 PB10 VSS VDD PB11 LQFP100 1. The above figure shows the package top view. 50/223 DS12712 Rev 2 MSv42661V3 STM32G473xB STM32G473xC STM32G473xE 4.6 Pinouts and pin description LQFP128 pinout description VDD VSS PD1 PD0 PG9 PG8 PG7 PG6 PG5 PC12 PC11 PC10 PA15 PA14 PF6 110 109 108 107 106 105 104 103 102 101 100 99 98 97 PD4 111 PD5 114 PD3 PD6 115 PD2 PD7 116 112 PB3 117 113 PB4 PB7 122 118 PB8-BOOT0 123 119 PB9 124 PB6 PE0 125 PB5 PE1 126 120 VSS 127 121 VDD 128 Figure 10. STM32G473xB/xC/xE LQFP128 pinout PE2 1 96 PA13 PE3 2 95 VDD PE4 3 94 VSS PE5 4 93 PA12 PE6 5 92 PA11 VBAT 6 91 PA10 PC13 7 90 PA9 PC14-OSC32_IN 8 89 PA8 PC15-OSC32_OUT 9 88 PC9 PF3 10 87 PC8 PF4 11 86 PG4 VSS 12 85 PG3 VDD 13 84 PG2 PF5 14 83 PG1 PF7 15 82 PG0 PF8 16 81 PC7 PF9 17 80 PC6 PF10 18 79 VDD PF0-OSC_IN 19 78 VSS PF1-OSC_OUT 20 77 PD15 PG10-NRST 21 76 PD14 PC0 22 75 PD13 PC1 23 74 PD12 PC2 24 73 PD11 PC3 25 72 PD10 PF2 26 71 PD9 PA0 27 70 PD8 PA1 28 69 PB15 PA2 29 68 PB14 VSS 30 67 PB13 VDD 31 66 PB12 PA3 32 65 PB11 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 VSS VDD PF11 PF12 PF13 PF14 PF15 PE7 PE8 PE9 PE10 PE11 PE12 PE13 PE14 PE15 PB10 VSS VDD 41 PB2 45 40 PB1 VDDA 39 PB0 44 38 PC5 VREF+ 37 PC4 43 36 PA7 42 35 PA6 VSSA 34 PA5 VREF+ 33 PA4 LQFP128 MSv42664V3 1. The above figure shows the package top view. DS12712 Rev 2 51/223 75 Pinouts and pin description 4.7 STM32G473xB STM32G473xC STM32G473xE WLCSP81 pinout description Figure 11. STM32G473xB/xC/xE WLCSP81 pinout 1 2 3 4 5 6 7 8 9 A VDD PA15 PC12 PD1 PB3 PB5 PB9 VSS VDD B VSS PA13 PC10 PD0 PD2 PB6 PB8-BOOT0 PC13 VBAT C PA12 PA11 PA14 PC11 PC8 PB4 PB7 PC1 PC14OSC32_IN D PA8 PC9 PA10 PA9 PC7 PA4 PA0 PG10-NRST PC15OSC32_OUT E VDD PD11 PC6 PB15 PE12 PC4 PA1 PC0 PF0-OSC_IN F VSS PD10 PD9 PE15 PE9 PB0 PA5 PC2 PF1OSC_OUT G PD8 PB14 PB12 PE13 PE8 PB1 PA6 PA2 PC3 H PB13 PB11 PB10 PE11 PE7 VSSA PC5 PA3 VSS J VDD VSS PE14 PE10 VDDA VREF+ PB2 PA7 VDD MSv48046V1 1. The above figure shows the package top view. 4.8 TFBGA100 pinout description Figure 12. STM32G473xB/xC/xE TFBGA100 pinout 1 2 3 4 5 6 7 8 9 10 A PE4 PB9 PB8-BOOT0 PB6 PB3 PD6 PD5 PD4 PD1 PC12 B PE5 PE3 PE1 PB7 PB5 PD7 PD2 PD0 PA15 PA14 C PC14OSC32_IN PE6 PE2 PE0 PB4 PD3 PC11 PC10 PA12 PA11 D PC15OSC32_OUT VSS VBAT PC13 VDD VSS VDD PA13 PA10 PA9 E PF0-OSC_IN PF1OSC_OUT PF9 PF10 VSS VSS VSS PC8 PC9 PA8 F PC2 PC0 PG10-NRST PC1 VDD VSS VDD PD14 PC6 PC7 G PC3 PA1 PF2 PA0 PE7 PE12 PD10 PD9 PD13 PD15 H PA2 PA4 PA3 PB0 PE8 PE9 PE15 PB11 PB14 PD11 J PA5 PA6 PC5 PB2 VDDA PE11 PE14 PB10 PB13 PD12 K PA7 PC4 PB1 VSSA VREF+ PE10 PE13 PB12 PB15 PD8 MS48951V1 1. The above figure shows the package top view. 52/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 4.9 Pinouts and pin description Pin definition Table 11. Legend/abbreviations used in the pinout table Name Pin name Pin type Abbreviation Unless otherwise specified in brackets below the pin name, the pin function during and after reset is the same as the actual pin name S Supply pin I Input only pin I/O Input / output pin FT 5 V tolerant I/O TT 3.6 V tolerant I/O B Dedicated BOOT0 pin NRST I/O structure I/O, with Analog switch function supplied by VDDA _c I/O, USB Type-C PD capable _d I/O, USB Type-C PD Dead Battery function (2) _u(3) Pin functions Bidirectional reset pin with embedded weak pull-up resistor Option for TT or FT I/Os _a(1) _f Notes Definition I/O, Fm+ capable I/O, with USB function Unless otherwise specified by a note, all I/Os are set as floating inputs during and after reset Alternate functions Functions selected through GPIOx_AFR registers Additional functions Functions directly selected/enabled through peripheral registers 1. The related I/O structures in Table 12 are: FT_a, FT_fa, TT_a. 2. The related I/O structures in Table 12 are: FT_f, FT_fa. 3. The related I/O structures in Table 12 are FT_u. DS12712 Rev 2 53/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE - - - - - - - - - - - - - - - - - - C3 B2 A1 B1 1 2 3 4 1 2 3 4 PE2 PE3 PE4 PE5 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 - Pin name (function after reset)(1) I/O I/O I/O I/O FT FT FT FT Notes - LQFP48 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition Alternate functions Additional functions - TRACECK, TIM3_CH1, SAI1_CK1, SPI4_SCK, TIM20_CH1, FMC_A23, SAI1_MCLK_A, EVENTOUT - - TRACED0, TIM3_CH2, SPI4_NSS, TIM20_CH2, FMC_A19, SAI1_SD_B, EVENTOUT - - TRACED1, TIM3_CH3, SAI1_D2, SPI4_NSS, TIM20_CH1N, FMC_A20, SAI1_FS_A, EVENTOUT - - TRACED2, TIM3_CH4, SAI1_CK2, SPI4_MISO, TIM20_CH2N, FMC_A21, SAI1_SCK_A, EVENTOUT - WKUP3, RTC_TAMP3 - - - - - C2 5 5 PE6 I/O FT - TRACED3, SAI1_D1, SPI4_MOSI, TIM20_CH3N, FMC_A22, SAI1_SD_A, EVENTOUT B9 1 1 1 1 D3 6 6 VBAT S - - - - TIM1_BKIN, TIM1_CH1N, TIM8_CH4N, EVENTOUT WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT1 EVENTOUT OSC32_IN (3) EVENTOUT OSC32_OUT - TIM20_CH4, I2C3_SCL, FMC_A3, EVENTOUT - B8 2 2 2 2 D4 7 7 PC13 I/O FT C9 3 3 3 3 C1 8 8 PC14OSC32_IN I/O FT D9 4 4 4 4 D1 9 9 PC15OSC32_OUT I/O FT - - - - - - - 10 PF3 I/O FT_f 54/223 DS12712 Rev 2 (2) (3) (2) (3) (2) STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description - - 11 PF4 I/O FT_f - F1 - - - - D2 - 12 VSS S - - - - A9 - - - - D5 - 13 VDD S - - - - - - - - - - - 14 PF5 I/O FT - TIM20_CH2N, FMC_A5, EVENTOUT - - TIM20_BKIN, TIM5_CH2, QUADSPI1_BK1_IO2, FMC_A1, SAI1_MCLK_B, EVENTOUT - - TIM20_BKIN2, TIM5_CH3, QUADSPI1_BK1_IO0, FMC_A24, SAI1_SCK_B, EVENTOUT - - TIM20_BKIN, TIM15_CH1, SPI2_SCK, TIM5_CH4, QUADSPI1_BK1_IO1, FMC_A25, SAI1_FS_B, EVENTOUT - - TIM20_BKIN2, TIM15_CH2, SPI2_SCK, QUADSPI1_CLK, FMC_A0, SAI1_D3, EVENTOUT - ADC1_IN10, OSC_IN - - - - - - - - - - - - - - - - - - - - - - E3 E4 - - 10 11 LPQF128 - LPQF100 - TFBGA100 - LQFP80 - LQFP64 - COMP1_OUT, TIM20_CH1N, I2C3_SDA, FMC_A4, EVENTOUT LQFP48 Alternate functions WLCSP81 Notes Pin name (function after reset)(1) Pin type UFQFPN48 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) 15 16 17 18 PF7 PF8 PF9 PF10 I/O I/O I/O I/O FT FT FT FT Additional functions - E9 5 5 5 5 E1 12 19 PF0-OSC_IN I/O FT_fa - I2C2_SDA, SPI2_NSS/I2S2_WS, TIM1_CH3N, EVENTOUT F9 6 6 6 6 E2 13 20 PF1OSC_OUT I/O FT_a - SPI2_SCK/I2S2_CK, EVENTOUT ADC2_IN10, COMP3_INM, OSC_OUT D8 7 7 7 7 F3 14 21 PG10-NRST I/O FT - MCO, EVENTOUT NRST - LPTIM1_IN1, TIM1_CH1, LPUART1_RX, EVENTOUT ADC12_IN6, COMP3_INM E8 - - 8 8 F2 15 22 PC0 I/O DS12712 Rev 2 FT_a 55/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE F8 - - - - 10 9 10 F4 F1 16 17 23 24 PC1 PC2 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 9 Pin name (function after reset)(1) I/O I/O TT_a FT_a Notes C8 LQFP48 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions - LPTIM1_OUT, TIM1_CH2, LPUART1_TX, QUADSPI1_BK2_IO0, SAI1_SD_A, EVENTOUT ADC12_IN7, COMP3_INP - LPTIM1_IN2, TIM1_CH3, COMP3_OUT, TIM20_CH2, QUADSPI1_BK2_IO1, EVENTOUT ADC12_IN8 ADC12_IN9, OPAMP5_VINP G9 - - 11 11 G1 18 25 PC3 I/O TT_a - LPTIM1_ETR, TIM1_CH4, SAI1_D1, TIM1_BKIN2, QUADSPI1_BK2_IO2, SAI1_SD_A, EVENTOUT - - - - - G3 19 26 PF2 I/O FT - TIM20_CH3, I2C2_SMBA, FMC_A2, EVENTOUT - - TIM2_CH1, TIM5_CH1, USART2_CTS, COMP1_OUT, TIM8_BKIN, TIM8_ETR, TIM2_ETR, EVENTOUT ADC12_IN1, COMP1_INM, COMP3_INP, RTC_TAMP2,WK UP1 - RTC_REFIN, TIM2_CH2, TIM5_CH2, USART2_RTS_DE, TIM15_CH1N, EVENTOUT ADC12_IN2, COMP1_INP, OPAMP1_VINP, OPAMP3_VINP, OPAMP6_VINM D7 E7 8 9 8 9 12 13 12 13 G4 G2 20 21 27 28 PA0 PA1 I/O I/O TT_a TT_a TIM2_CH3, TIM5_CH3, USART2_TX, ADC1_IN3, COMP2_OUT, COMP2_INM, TIM15_CH1, OPAMP1_VOUT, QUADSPI1_BK1_NCS WKUP4/LSCO , LPUART1_TX, UCPD1_FRSTX, EVENTOUT G8 10 10 14 14 H1 22 29 PA2 I/O FT_a - H9 - - 15 15 D6 23 30 VSS S - - - - J9 - - 16 16 D7 24 31 VDD S - - - - 56/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description D6 F7 G7 J8 E6 H7 11 12 13 14 15 16 - 12 13 14 15 - - 17 18 19 20 21 22 23 17 18 19 20 21 22 23 H3 H2 J1 J2 K1 K2 J3 25 26 27 28 29 30 31 32 33 34 35 36 37 38 PA3 PA4 PA5 PA6 PA7 PC4 PC5 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 LQFP48 11 Pin name (function after reset)(1) I/O I/O I/O I/O I/O I/O I/O DS12712 Rev 2 TT_a TT_a TT_a TT_a TT_a FT_fa TT_a Notes H8 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions - TIM2_CH4, TIM5_CH4, SAI1_CK1, USART2_RX, TIM15_CH2, QUADSPI1_CLK, LPUART1_RX, SAI1_MCLK_A, EVENTOUT ADC1_IN4, COMP2_INP, OPAMP1_VINM/ OPAMP 1_VINP, OPAMP5_VINM - TIM3_CH2, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK, SAI1_FS_B, EVENTOUT ADC2_IN17, DAC1_OUT1, COMP1_INM - TIM2_CH1, TIM2_ETR, SPI1_SCK, UCPD1_FRSTX, EVENTOUT ADC2_IN13, DAC1_OUT2, COMP2_INM, OPAMP2_VINM - TIM16_CH1, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM1_BKIN, COMP1_OUT, QUADSPI1_BK1_IO3, LPUART1_CTS, EVENTOUT ADC2_IN3, DAC2_OUT1, OPAMP2_VOUT - TIM17_CH1, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM1_CH1N, COMP2_OUT, QUADSPI1_BK1_IO2, UCPD1_FRSTX, EVENTOUT ADC2_IN4, COMP2_INP, OPAMP1_VINP, OPAMP2_VINP - TIM1_ETR, I2C2_SCL, USART1_TX, QUADSPI1_BK2_IO3, EVENTOUT ADC2_IN5 - TIM15_BKIN, SAI1_D3, TIM1_CH4N, USART1_RX, EVENTOUT ADC2_IN11, OPAMP1_VINM, OPAMP2_VINM, WKUP5 57/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE G6 17 18 16 17 25 24 25 H4 K3 32 33 39 40 PB0 PB1 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 24 Pin name (function after reset)(1) I/O I/O TT_a TT_a Notes F6 LQFP48 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions - TIM3_CH3, ADC3_IN12/ADC TIM8_CH2N, 1_IN15, TIM1_CH2N, COMP4_INP, QUADSPI1_BK1_IO1, OPAMP2_VINP, UCPD1_FRSTX, OPAMP3_VINP EVENTOUT - TIM3_CH4, TIM8_CH3N, ADC3_IN1/ADC1 TIM1_CH3N, _IN12, COMP4_OUT, COMP1_INP, QUADSPI1_BK1_IO0, OPAMP3_VOUT, LPUART1_RTS_DE, OPAMP6_VINM EVENTOUT ADC2_IN12, COMP4_INM, OPAMP3_VINM Additional functions J7 19 18 26 26 J4 34 41 PB2 I/O TT_a - RTC_OUT2, LPTIM1_OUT, TIM5_CH1, TIM20_CH1, I2C3_SMBA, QUADSPI1_BK2_IO1, EVENTOUT H6 - 19 27 27 K4 35 42 VSSA S - - - - J6 20 20 28 28 K5 36 43 VREF+ S - - - VREFBUF_OUT - - - - - - - 44 VREF+ S - - - VREFBUF_OUT J5 21 21 29 29 J5 37 45 VDDA S - - - - H9 - - - - E5 - 46 VSS S - - - - J1 - - - - F5 - 47 VDD S - - - - - - - - - - - 48 PF11 I/O FT - TIM20_ETR, FMC_NE4, EVENTOUT - - - - - - - - 49 PF12 I/O FT - TIM20_CH1, FMC_A6, EVENTOUT - - - - - - - - 50 PF13 I/O FT - TIM20_CH2, I2C4_SMBA, FMC_A7, EVENTOUT - - - - - - - - 51 PF14 I/O FT_f - TIM20_CH3, I2C4_SCL, FMC_A8, EVENTOUT - - - - - - - - 52 PF15 I/O FT_f - TIM20_CH4, I2C4_SDA, FMC_A9, EVENTOUT - H5 - - - 30 G5 38 53 PE7 I/O TT_a - TIM1_ETR, FMC_D4, SAI1_SD_B, EVENTOUT ADC3_IN4, COMP4_INP 58/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description F5 J4 H4 E5 G4 J3 F4 - - - - - - - - - - - - - - - - - - - - - - - 31 32 33 34 35 36 37 38 H5 H6 K6 J6 G6 K7 J7 H7 39 40 41 42 43 44 45 46 54 55 56 57 58 59 60 61 PE8 PE9 PE10 PE11 PE12 PE13 PE14 PE15 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 LQFP48 - Pin name (function after reset)(1) I/O I/O I/O I/O I/O I/O I/O I/O FT_a FT_a FT_a FT_a FT_a FT_a FT_a FT_a Notes G5 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions - TIM5_CH3, TIM1_CH1N, FMC_D5, SAI1_SCK_B, EVENTOUT ADC345_IN6, COMP4_INM - TIM5_CH4, TIM1_CH1, FMC_D6, SAI1_FS_B, EVENTOUT ADC3_IN2 - TIM1_CH2N, QUADSPI1_CLK, FMC_D7, SAI1_MCLK_B, EVENTOUT ADC345_IN14 - TIM1_CH2, SPI4_NSS, QUADSPI1_BK1_NCS , FMC_D8, EVENTOUT ADC345_IN15 - TIM1_CH3N, SPI4_SCK, QUADSPI1_BK1_IO0, FMC_D9, EVENTOUT ADC345_IN16 - TIM1_CH3, SPI4_MISO, QUADSPI1_BK1_IO1, FMC_D10, EVENTOUT ADC3_IN3 - TIM1_CH4, SPI4_MOSI, TIM1_BKIN2, QUADSPI1_BK1_IO2, FMC_D11, EVENTOUT ADC4_IN1 - TIM1_BKIN, TIM1_CH4N, USART3_RX, QUADSPI1_BK1_IO3, FMC_D12, EVENTOUT ADC4_IN2 COMP5_INM, OPAMP3_VINM, OPAMP4_VINM - H3 22 22 30 39 J8 47 62 PB10 I/O TT_a - TIM2_CH3, USART3_TX, LPUART1_RX, QUADSPI1_CLK, TIM1_BKIN, SAI1_SCK_A, EVENTOUT J2 - 23 31 40 E6 48 63 VSS S - - - DS12712 Rev 2 59/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE LQFP48 LQFP64 LQFP80 TFBGA100 LPQF100 LPQF128 23 24 32 41 F7 49 64 H2 G3 H1 G2 24 25 26 27 25 26 27 28 33 34 35 36 42 43 44 45 H8 K8 J9 H9 50 51 52 53 65 66 67 68 I/O structure UFQFPN48 J1 Pin name (function after reset)(1) Pin type WLCSP81 Pin Number VDD S - PB11 PB12 PB13 PB14 I/O I/O I/O I/O TT_a TT_a TT_a TT_a Notes Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions - - - - TIM2_CH4, ADC12_IN14, USART3_RX, COMP6_INP, LPUART1_TX, OPAMP4_VINP, QUADSPI1_BK1_NCS OPAMP6_VOUT , EVENTOUT - TIM5_ETR, I2C2_SMBA, SPI2_NSS/I2S2_WS, TIM1_BKIN, USART3_CK, LPUART1_RTS_DE, FDCAN2_RX, EVENTOUT ADC4_IN3/ADC1 _IN11, COMP7_INM, OPAMP4_VOUT, OPAMP6_VINP - SPI2_SCK/I2S2_CK, TIM1_CH1N, USART3_CTS, LPUART1_CTS, FDCAN2_TX, EVENTOUT ADC3_IN5, COMP5_INP, OPAMP3_VINP, OPAMP4_VINP, OPAMP6_VINP - TIM15_CH1, SPI2_MISO, TIM1_CH2N, USART3_RTS_DE, COMP4_OUT, EVENTOUT ADC4_IN4/ADC1 _IN5, COMP7_INP, OPAMP2_VINP, OPAMP5_VINP RTC_REFIN, TIM15_CH2, ADC4_IN5/ADC2 TIM15_CH1N, _IN15, COMP3_OUT, COMP6_INM, TIM1_CH3N, OPAMP5_VINM SPI2_MOSI/I2S2_SD, EVENTOUT E4 28 29 37 46 K9 54 69 PB15 I/O TT_a - G1 - - - 47 K10 55 70 PD8 I/O TT_a - USART3_TX, FMC_D13, EVENTOUT ADC4_IN12/ADC 5_IN12, OPAMP4_VINM F3 - - - 48 G8 56 71 PD9 I/O TT_a - USART3_RX, FMC_D14, EVENTOUT ADC4_IN13/ADC 5_IN13, OPAMP6_VINP F2 - - - 49 G7 57 72 PD10 I/O FT_a - USART3_CK, FMC_D15, EVENTOUT ADC345_IN7, COMP6_INM - TIM5_ETR, I2C4_SMBA, USART3_CTS, FMC_A16, EVENTOUT ADC345_IN8, COMP6_INP, OPAMP4_VINP E2 60/223 - - - - H10 58 73 PD11 I/O DS12712 Rev 2 TT_a STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description J10 59 74 PD12 I/O TT_a - - - - - - G9 60 75 PD13 I/O FT_a - TIM4_CH2, FMC_A18, EVENTOUT ADC345_IN10, COMP5_INM - - - - - F8 61 76 PD14 I/O TT_a - TIM4_CH3, FMC_D0, EVENTOUT ADC345_IN11, COMP7_INP, OPAMP2_VINP - - - - - G10 62 77 PD15 I/O FT_a - TIM4_CH4, SPI2_NSS, FMC_D1, EVENTOUT COMP7_INM B1 - - - 50 E7 63 78 VSS S - - - - E1 - - - 51 - 64 79 VDD S - - - - - TIM3_CH1, TIM8_CH1, I2S2_MCK, COMP6_OUT, I2C4_SCL, EVENTOUT - - E3 29 - 38 52 F9 65 LPQF128 - LPQF100 - TFBGA100 - LQFP80 - LQFP64 - TIM4_CH1, USART3_RTS_DE, FMC_A17, EVENTOUT LQFP48 Alternate functions WLCSP81 Notes Pin name (function after reset)(1) Pin type UFQFPN48 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) 80 PC6 I/O FT_f Additional functions ADC345_IN9, COMP5_INP, OPAMP5_VINP D5 - - 39 53 F10 66 81 PC7 I/O FT_f - TIM3_CH2, TIM8_CH2, I2S3_MCK, COMP5_OUT, I2C4_SDA, EVENTOUT - - - - - - - 82 PG0 I/O FT - TIM20_CH1N, FMC_A10, EVENTOUT - - - - - - - - 83 PG1 I/O FT - TIM20_CH2N, FMC_A11, EVENTOUT - - - - - - - - 84 PG2 I/O FT - TIM20_CH3N, SPI1_SCK, FMC_A12, EVENTOUT - - TIM20_BKIN, I2C4_SCL, SPI1_MISO, TIM20_CH4N, FMC_A13, EVENTOUT - - TIM20_BKIN2, I2C4_SDA, SPI1_MOSI, FMC_A14, EVENTOUT - - - - - - - - - - - - - - - 85 86 PG3 PG4 I/O I/O DS12712 Rev 2 FT_f FT_f 61/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE D2 D1 D4 D3 62/223 - - 30 31 32 - - 30 31 32 41 42 43 44 54 55 56 57 58 E8 E9 E10 D10 D9 67 68 69 70 71 87 88 89 90 91 PC8 PC9 PA8 PA9 PA10 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 40 Pin name (function after reset)(1) I/O I/O I/O I/O I/O DS12712 Rev 2 FT_f FT_f FT_a FT_fd a FT_fd a Notes C5 LQFP48 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions - TIM3_CH3, TIM8_CH3, TIM20_CH3, COMP7_OUT, I2C3_SCL, EVENTOUT - - TIM3_CH4, RTIM1_CHE2, TIM8_CH4, I2SCKIN, TIM8_BKIN2, I2C3_SDA, EVENTOUT - - MCO, I2C3_SCL, I2C2_SDA, I2S2_MCK, TIM1_CH1, USART1_CK, COMP7_OUT, TIM4_ETR, FDCAN3_RX, SAI1_CK2, SAI1_SCK_A, EVENTOUT ADC5_IN1, OPAMP5_VOUT - I2C3_SMBA, I2C2_SCL, I2S3_MCK, TIM1_CH2, USART1_TX, OMP5_OUT, TIM15_BKIN, TIM2_CH3, SAI1_FS_A, EVENTOUT ADC5_IN2, UCPD1_DBCC1 - TIM17_BKIN, USB_CRS_SYNC, I2C2_SMBA, SPI2_MISO, TIM1_CH3, USART1_RX, COMP6_OUT, TIM2_CH4, TIM8_BKIN, SAI1_D1, SAI1_SD_A, EVENTOUT UCPD1_DBCC2 STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description 33 45 59 C10 72 92 PA11 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 LQFP48 33 Pin name (function after reset)(1) I/O FT_u Notes C2 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions - SPI2_MOSI/I2S2_SD, TIM1_CH1N, USART1_CTS, COMP1_OUT, FDCAN1_RX, TIM4_CH1, TIM1_CH4, TIM1_BKIN2, EVENTOUT USB_DM USB_DP C1 34 34 46 60 C9 73 93 PA12 I/O FT_u - TIM16_CH1, I2SCKIN, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX, TIM4_CH2, TIM1_ETR, EVENTOUT A8 - 35 47 61 F6 74 94 VSS S - - - - A1 35 36 48 62 - 75 95 VDD S - - - - (4) SWDIO-JTMS, TIM16_CH1N, I2C4_SCL, I2C1_SCL, IR_OUT, USART3_CTS, TIM4_CH3, SAI1_SD_B, EVENTOUT - - TIM5_ETR, TIM4_CH4, SAI1_SD_B, I2C2_SCL, TIM5_CH1, USART3_RTS, QUADSPI1_BK1_IO3, EVENTOUT - (4) SWCLK-JTCK, LPTIM1_OUT, I2C4_SMBA, I2C1_SDA, TIM8_CH2, TIM1_BKIN, USART2_TX, SAI1_FS_B, EVENTOUT - B2 - C3 36 - 37 37 - 38 49 - 50 63 - 64 D8 - B10 76 - 77 96 97 98 PA13 PF6 PA14 I/O I/O I/O DS12712 Rev 2 FT_f FT_f FT_f 63/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE B3 C4 A3 - - - - 64/223 38 39 40 - - - - - 39 - - - - - - - 52 53 54 - - - - 65 66 67 68 - - - - B9 C8 C7 A10 - - - - 78 79 80 81 - - - - 99 100 101 102 103 104 105 106 PA15 PC10 PC11 PC12 PG5 PG6 PG7 PG8 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 51 Pin name (function after reset)(1) I/O I/O I/O I/O I/O I/O I/O I/O DS12712 Rev 2 FT_f FT FT_f FT FT FT FT_f FT_f Notes A2 LQFP48 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions (4) JTDI, TIM2_CH1, TIM8_CH1, I2C1_SCL, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_RX, UART4_RTS_DE, TIM1_BKIN, FDCAN3_TX, TIM2_ETR, EVENTOUT - - TIM8_CH1N, UART4_TX, SPI3_SCK/I2S3_CK, USART3_TX, EVENTOUT - - TIM8_CH2N, UART4_RX, SPI3_MISO, USART3_RX, I2C3_SDA, EVENTOUT - - TIM5_CH2, TIM8_CH3N, UART5_TX, SPI3_MOSI/I2S3_SD, USART3_CK, UCPD1_FRSTX, EVENTOUT - - TIM20_ETR, SPI1_NSS, LPUART1_CTS, FMC_A15, EVENTOUT - - TIM20_BKIN, I2C3_SMBA, LPUART1_RTS_DE, FMC_INT, EVENTOUT - - SAI1_CK1, I2C3_SCL, LPUART1_TX, FMC_INT, SAI1_MCLK_A, EVENTOUT - - I2C3_SDA, LPUART1_RX, FMC_NE3, EVENTOUT - STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description - - 107 PG9 I/O FT - B4 - - - 69 B8 82 108 PD0 I/O FT - TIM8_CH4N, FDCAN1_RX, FMC_D2, EVENTOUT - - LPQF128 - LPQF100 - TFBGA100 - LQFP80 - LQFP64 - SPI3_SCK, USART1_TX, FMC_NCE/FMC_NE2, TIM15_CH1N, EVENTOUT LQFP48 Alternate functions WLCSP81 Notes Pin name (function after reset)(1) Pin type UFQFPN48 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Additional functions - A4 - - - 70 A9 83 109 PD1 I/O FT - TIM8_CH4, TIM8_BKIN2, FDCAN1_TX, FMC_D3, EVENTOUT - - - - - - - 110 VSS S - - - - A1 - - - - - - 111 VDD S - - - - - TIM3_ETR, TIM8_BKIN, UART5_RX, EVENTOUT - - TIM2_CH1/ TIM2_ETR, USART2_CTS, QUADSPI1_BK2_NCS , FMC_CLK, EVENTOUT - - TIM2_CH2, USART2_RTS_DE, QUADSPI1_BK2_IO0, FMC_NOE, EVENTOUT - - USART2_TX, QUADSPI1_BK2_IO1, FMC_NWE, EVENTOUT - - TIM2_CH4, SAI1_D1, USART2_RX, QUADSPI1_BK2_IO2, FMC_NWAIT, SAI1_SD_A, EVENTOUT - - TIM2_CH3, USART2_CK, QUADSPI1_BK2_IO3, FMC_NCE/FMC_NE1, EVENTOUT - B5 - - - - - - - - - - - - - - - - - 55 - - - - - 71 - - - - - B7 C6 A8 A7 A6 B6 84 85 86 87 88 89 112 113 114 115 116 117 PD2 PD3 PD4 PD5 PD6 PD7 I/O I/O I/O I/O I/O I/O DS12712 Rev 2 FT FT FT FT FT FT 65/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE A5 C6 A6 B6 66/223 41 42 43 44 40 41 42 43 56 57 58 59 72 73 74 75 A5 C5 B5 A4 90 91 92 93 118 119 120 121 PB3 PB4 PB5 PB6 I/O I/O I/O I/O DS12712 Rev 2 FT FT_c FT_f FT_c Notes Pin name (function after reset)(1) Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 LQFP48 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions (4) JTDO-TRACESWO, TIM2_CH2, TIM4_ETR, UCPD1_CRS_SYNC, TIM8_CH1N, SPI1_SCK, SPI3_SCK/I2S3_CK, USART2_TX, TIM3_ETR, FDCAN3_RX, SAI1_SCK_B, EVENTOUT - (4) JTRST, TIM16_CH1, TIM3_CH1, TIM8_CH2N, SPI1_MISO, SPI3_MISO, USART2_RX, UART5_RTS_DE, TIM17_BKIN, FDCAN3_TX, SAI1_MCLK_B, EVENTOUT UCPD1_CC2 - TIM16_BKIN, TIM3_CH2, TIM8_CH3N, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI/I2S3_SD, USART2_CK, I2C3_SDA, FDCAN2_RX, TIM17_CH1, LPTIM1_IN1, SAI1_SD_B, UART5_CTS, EVENTOUT - - TIM16_CH1N, TIM4_CH1, TIM8_CH1, TIM8_ETR, USART1_TX, COMP4_OUT, FDCAN2_TX, TIM8_BKIN2, LPTIM1_ETR, SAI1_FS_B, EVENTOUT UCPD1_CC1 STM32G473xB STM32G473xC STM32G473xE Pinouts and pin description B7 A7 - 45 46 47 - 45 46 - 60 61 62 - 76 77 78 - B4 A3 A2 C4 94 95 96 97 122 123 PB7 PB8-BOOT0 124 125 PB9 PE0 Pin type LPQF128 LPQF100 TFBGA100 LQFP80 LQFP64 LQFP48 44 Pin name (function after reset)(1) I/O I/O I/O I/O FT_f FT_f FT_f FT Notes C7 UFQFPN48 WLCSP81 Pin Number I/O structure Table 12. STM32G473xB/xC/xE pin definition (continued) Alternate functions Additional functions - TIM17_CH1N, TIM4_CH2, I2C4_SDA, I2C1_SDA, TIM8_BKIN, USART1_RX, COMP3_OUT, TIM3_CH4, LPTIM1_IN2, FMC_NL, UART4_CTS, EVENTOUT PVD_IN (5) TIM16_CH1, TIM4_CH3, SAI1_CK1, I2C1_SCL, USART3_RX, COMP1_OUT, FDCAN1_RX, TIM8_CH2, TIM1_BKIN, SAI1_MCLK_A, EVENTOUT - - TIM17_CH1, TIM4_CH4, SAI1_D2, I2C1_SDA, IR_OUT, USART3_TX, COMP2_OUT, FDCAN1_TX, TIM8_CH3, TIM1_CH3N, SAI1_FS_A, EVENTOUT - - TIM4_ETR, TIM20_CH4N, TIM16_CH1, TIM20_ETR, USART1_TX, FMC_NBL0, EVENTOUT - - - - - - - B3 98 126 PE1 I/O FT - TIM17_CH1, TIM20_CH4, USART1_RX, FMC_NBL1, EVENTOUT - - 47 63 79 - 99 127 VSS S - - - - A9 48 48 64 80 - 100 128 VDD S - - - - 1. Function availability depends on the chosen device. DS12712 Rev 2 67/223 75 Pinouts and pin description STM32G473xB STM32G473xC STM32G473xE 2. PC13, PC14 and PC15 are supplied through the power switch. Since the switch only sinks a limited amount of current (3 mA), the use of GPIOs PC13 to PC15 in output mode is limited: - The speed should not exceed 2 MHz with a maximum load of 30 pF - These GPIOs must not be used as current sources (e.g. to drive an LED). 3. After a backup domain power-up, PC13, PC14 and PC15 operate as GPIOs. Their function then depends on the content of the RTC registers which are not reset by the system reset. For details on how to manage these GPIOs, refer to the Backup domain and RTC register descriptions in the reference manual RM0440 "STM32G4 Series advanced Arm®-based 32-bit MCUs". 4. After reset, these pins are configured as JTAG/SW debug alternate functions, and the internal pull-up on PA15, PA13, PB4 pins and the internal pull-down on PA14 pin are activated. 5. It is recommended to set PB8 in another mode than analog mode after startup to limit consumption if the pin is left unconnected. 68/223 DS12712 Rev 2 Alternate functions Table 13. Alternate function AF1 AF2 AF3 AF4 AF5 AF6 AF7 AF8 AF9 AF10 AF11 AF12 AF13 AF14 AF15 SYS_AF LPTIM1/ TIM2/5/ 15/16/17 I2C3/ TIM1/2/3/4/5/8/1 5/20/ GPCOMP1 QUADSPI1/ I2C3/4/SAI1/ USB/ TIM8/15/20/GPC OMP3/ TSC I2C1/2/3/ 4/ TIM1/8/1 6/17 QUADSPI1/S PI1/2/3/4/I2S 2/3/ I2C4/ UART4/5/TIM 8/ Infrared QUADSPI1/ SPI2/3/ I2S2/3/ TIM1/5/8/20 / Infrared USART1/2/3 /CAN/ GPCOMP5/6 /7 I2C3/4/ UART4/5/L PUART1/G PCOMP1/2/ 3/4/5/6/7 CAN/ TIM1/8/1 5/CAN1/2 QUADSPI1/ TIM2/3/4/8/1 7 LPTIM1/ TIM1/8/C AN1/3 SDIO/FMC/ LPUART1/ SAI1 TIM1 SAI1/OPAMP 2 UART4/5/ SAI1/ TIM2/15/ UCPD EVENT PA0 - TIM2_CH1 TIM5_CH1 - - - - USART2_ CTS COMP1 _OUT TIM8_ BKIN TIM8_ETR - - - TIM2_ ETR EVENT OUT PA1 RTC_ REFIN TIM2_CH2 TIM5_CH2 - - - - USART2_ RTS_DE - TIM15_C H1N - - - - - EVENT OUT PA2 - TIM2_CH3 TIM5_CH3 - - - - USART2_ TX COMP2 _OUT TIM15_C H1 QUADSPI1_ BK1_NCS - LPUART1_TX - UCPD1_ FRSTX EVENT OUT PA3 - TIM2_CH4 TIM5_CH4 SAI1_CK1 - - - USART2_ RX - TIM15_C H2 QUADSPI1_ CLK - LPUART1_RX SAI1_MCLK_ A - EVENT OUT PA4 - - TIM3_CH2 - - SPI1_NSS SPI3_NSS/I 2S3_WS USART2_ CK - - - - - SAI1_FS_B - EVENT OUT PA5 - TIM2_CH1 TIM2_ETR - - SPI1_SCK - - - - - - - - UCPD1_ FRSTX EVENT OUT PA6 - TIM16_CH1 TIM3_CH1 - TIM8_ BKIN SPI1_MISO TIM1_BKIN - COMP1 _OUT - QUADSPI1_ BK1_IO3 - LPUART1_ CTS - - EVENT OUT PA7 - TIM17_CH1 TIM3_CH2 - TIM8_ CH1N SPI1_MOSI TIM1_CH1 N - COMP2_ OUT - QUADSPI1_ BK1_IO2 - - - UCPD1_ FRSTX EVENT OUT PA8 MCO - - - I2C2_ SMBA I2S2_MCK TIM1_CH1 USART1_ CK COMP7 _OUT - TIM4_ETR CAN3_ RX SAI1_CK2 - SAI1_SC K_A EVENT OUT PA9 - - I2C3_SMBA - I2C2_ SCL I2S3_MCK TIM1_CH2 USART1_ TX COMP5 _OUT TIM15_B KIN TIM2_CH3 CAN1_ RXFD - - SAI1_FS _A EVENT OUT PA10 - TIM17_BKIN I2C3_SCL USB_CRS_ SYNC I2C2_ SDA SPI2_MISO TIM1_CH3 USART1_ RX COMP6 _OUT CAN1_T XFD TIM2_CH4 TIM8_ BKIN SAI1_D1 - SAI1_SD _A EVENT OUT PA11 - - - - - SPI2_MOSI/I 2S2_SD TIM1_CH1 N USART1_ CTS COMP1 _OUT CAN1_ RX TIM4_CH1 TIM1_CH 4 TIM1_BKIN2 - - EVENT OUT PA12 - TIM16_CH1 - - - I2SCKIN TIM1_CH2 N USART1_ RTS_DE COMP2 _OUT CAN1_ TX TIM4_CH2 TIM1_ ETR - - - EVENT OUT PA13 SWDIOJTMS TIM16_CH1N - - - IR_OUT - USART3_ CTS - - TIM4_CH3 - - SAI1_SD_B - EVENT OUT PA14 SWCLKJTCK LPTIM1_OUT - I2C4_SMBA I2C1_ SDA TIM8_CH2 TIM1_ BKIN USART2_ TX - - - CAN3_ TXFD - SAI1_FS_B - EVENT OUT PA15 JTDI TIM2_CH1 TIM8_CH1 - I2C1_ SCL SPI1_NSS SPI3_NSS/I 2S3_WS USART2_ RX UART4 _RTS_DE TIM1_ BKIN - CAN3_ TX - - TIM2_ET R EVENT OUT Port Port A DS12712 Rev 2 69/223 Pinouts and pin description AF0 STM32G473xB STM32G473xC STM32G473xE 4.10 AF1 AF2 AF3 AF4 AF5 AF6 AF7 AF8 AF9 AF10 AF11 AF12 AF13 AF14 AF15 SYS_AF LPTIM1/ TIM2/5/ 15/16/17 I2C3/ TIM1/2/3/4/5/8/1 5/20/ GPCOMP1 QUADSPI1/ I2C3/4/SAI1/ USB/ TIM8/15/20/GPC OMP3/ TSC I2C1/2/3/ 4/ TIM1/8/1 6/17 QUADSPI1/S PI1/2/3/4/I2S 2/3/ I2C4/ UART4/5/TIM 8/ Infrared QUADSPI1/ SPI2/3/ I2S2/3/ TIM1/5/8/20 / Infrared USART1/2/3 /CAN/ GPCOMP5/6 /7 I2C3/4/ UART4/5/L PUART1/G PCOMP1/2/ 3/4/5/6/7 CAN/ TIM1/8/1 5/CAN1/2 QUADSPI1/ TIM2/3/4/8/1 7 LPTIM1/ TIM1/8/C AN1/3 SDIO/FMC/ LPUART1/ SAI1 TIM1 SAI1/OPAMP 2 UART4/5/ SAI1/ TIM2/15/ UCPD EVENT PB0 - - TIM3_CH3 - TIM8_ CH2N - TIM1_CH2 N - - - QUADSPI1_ BK1_IO1 - - - UCPD1_ FRSTX EVENT OUT PB1 - - TIM3_CH4 - TIM8_ CH3N - TIM1_CH3 N - COMP4_O UT - QUADSPI1_ BK1_IO0 - LPUART1_RTS _DE - - EVENT OUT PB2 - LPTIM1_OUT TIM5_CH1 TIM20_CH1 I2C3_ SMBA - - - - - QUADSPI1_ BK2_IO1 - - - - EVENT OUT PB3 JTDOTRACESWO TIM2_CH2 TIM4_ETR USB_CRS_SYN C TIM8_ CH1N SPI1_SCK SPI3_SCK/I 2S3_CK USART2_TX - - TIM3_ETR CAN3_R X - - SAI1_SC K_B EVENT OUT PB4 JTRST TIM16_CH1 TIM3_CH1 - TIM8_ CH2N SPI1_MISO SPI3_MISO USART2_R X UART5_RT S_DE - TIM17_BKIN CAN3_T X - - SAI1_MC LK_B EVENT OUT PB5 - TIM16_BKIN TIM3_CH2 TIM8_CH3N I2C1_ SMBA SPI1_MOSI SPI3_MOSI /I2S3_SD USART2_C K I2C3_SDA CAN2_R X TIM17_CH1 LPTIM1_I N1 SAI1_SD_B - UART5_ CTS EVENT OUT PB6 - TIM16_CH1N TIM4_CH1 I2C4_SCL I2C1_ SCL TIM8_CH1 TIM8_ETR USART1_TX COMP4_O UT CAN2_T X TIM8_BKIN2 LPTIM1_ ETR - - SAI1_FS _B EVENT OUT PB7 - TIM17_CH1N TIM4_CH2 I2C4_SDA I2C1_ SDA TIM8_BKIN - USART1_R X COMP3_O UT CAN2_T XFD TIM3_CH4 LPTIM1_I N2 FMC_NL - UART4_ CTS EVENT OUT PB8 - TIM16_CH1 TIM4_CH3 SAI1_CK1 I2C1_ SCL - - USART3_R X COMP1_O UT CAN1_R X TIM8_CH2 - TIM1_BKIN - SAI1_MC LK_A EVENT OUT PB9 - TIM17_CH1 TIM4_CH4 SAI1_D2 I2C1_ SDA - IR_OUT USART3_TX COMP2_O UT CAN1_T X TIM8_CH3 - TIM1_CH3N - SAI1_FS _A EVENT OUT PB10 - TIM2_CH3 - - - - - USART3_TX LPUART1_ RX - QUADSPI1_ CLK CAN3_T XFD TIM1_BKIN - SAI1_SC K_A EVENT OUT PB11 - TIM2_CH4 - - - - - USART3_R X LPUART1_ TX - QUADSPI1_ BK1_NCS CAN3_R XFD - - - EVENT OUT PB12 - - TIM5_ETR - I2C2_ SMBA SPI2_NSS/I2 S2_WS TIM1_BKIN USART3_C K LPUART1_ RTS_DE CAN2_R X - - - - - EVENT OUT PB13 - - - - - SPI2_SCK/I2 S2_CK TIM1_CH1 N USART3_CT S LPUART1_ CTS CAN2_T X - - - - - EVENT OUT PB14 - TIM15_CH1 - - - SPI2_MISO TIM1_CH2 N USART3_RT S_DE COMP4_O UT - - - - - - EVENT OUT PB15 RTC_REFIN TIM15_CH2 TIM15_CH1N COMP3_OUT TIM1_ CH3N SPI2_MOSI/I 2S2_SD - - - - - - - - - EVENT OUT DS12712 Rev 2 Port B Port STM32G473xB STM32G473xC STM32G473xE AF0 Pinouts and pin description 70/223 Table 13. Alternate function (continued) AF1 AF2 AF3 AF4 AF5 AF6 AF7 AF8 AF9 AF10 AF11 AF12 AF13 AF14 AF15 SYS_AF LPTIM1/ TIM2/5/ 15/16/17 I2C3/ TIM1/2/3/4/5/8/1 5/20/ GPCOMP1 QUADSPI1/ I2C3/4/SAI1/ USB/ TIM8/15/20/GPC OMP3/ TSC I2C1/2/3/ 4/ TIM1/8/1 6/17 QUADSPI1/S PI1/2/3/4/I2S 2/3/ I2C4/ UART4/5/TIM 8/ Infrared QUADSPI1/ SPI2/3/ I2S2/3/ TIM1/5/8/20 / Infrared USART1/2/3 /CAN/ GPCOMP5/6 /7 I2C3/4/ UART4/5/L PUART1/G PCOMP1/2/ 3/4/5/6/7 CAN/ TIM1/8/1 5/CAN1/2 QUADSPI1/ TIM2/3/4/8/1 7 LPTIM1/ TIM1/8/C AN1/3 SDIO/FMC/ LPUART1/ SAI1 TIM1 SAI1/OPAMP 2 UART4/5/ SAI1/ TIM2/15/ UCPD EVENT PC0 - LPTIM1_IN1 TIM1_CH1 - - - - - LPUART1_ RX - - - - - - EVENT OUT PC1 - LPTIM1_OUT TIM1_CH2 - - - - - LPUART1_ TX - QUADSPI1_ BK2_IO0 - - SAI1_SD_A - EVENT OUT PC2 - LPTIM1_IN2 TIM1_CH3 COMP3_OUT - - TIM20_CH2 - - - QUADSPI1_ BK2_IO1 - - - - EVENT OUT PC3 - LPTIM1_ETR TIM1_CH4 SAI1_D1 - - TIM1_BKIN 2 - - - QUADSPI1_ BK2_IO2 - - SAI1_SD_A - EVENT OUT PC4 - - TIM1_ETR - I2C2_SC L - - USART1_TX - - QUADSPI1_ BK2_IO3 - - - - EVENT OUT PC5 - - TIM15_BKIN SAI1_D3 - - TIM1_CH4 N USART1_R X - - - - - - - EVENT OUT PC6 - - TIM3_CH1 - TIM8_ CH1 - I2S2_MCK COMP6_OU T I2C4_SCL - - - - - - EVENT OUT PC7 - - TIM3_CH2 - TIM8_ CH2 - I2S3_MCK COMP5_OU T I2C4_SDA - - - - - - EVENT OUT PC8 - - TIM3_CH3 - TIM8_ CH3 - TIM20_CH3 COMP7_OU T I2C3_SCL - - - - - - EVENT OUT PC9 - - TIM3_CH4 - TIM8_ CH4 I2SCKIN TIM8_ BKIN2 - I2C3_SDA - - - - - - EVENT OUT PC10 - - - - TIM8_ CH1N UART4_TX SPI3_SCK/I 2S3_CK USART3_TX - - - - - - - EVENT OUT PC11 - - - - TIM8_ CH2N UART4_RX SPI3_MISO USART3_R X I2C3_SDA - - - - - - EVENT OUT PC12 - TIM5_CH2 - - TIM8_C H3N UART5_TX SPI3_MOSI /I2S3_SD USART3_C K - - - - - - UCPD1_ FRSTX EVENT OUT PC13 - - TIM1_BKIN - TIM1_ CH1N - TIM8_CH4 N - - - - - - - - EVENT OUT PC14 - - - - - - - - - - - - - - - EVENT OUT PC15 - - - - - - - - - - - - - - - EVENT OUT DS12712 Rev 2 Port C Port 71/223 Pinouts and pin description AF0 STM32G473xB STM32G473xC STM32G473xE Table 13. Alternate function (continued) AF1 AF2 AF3 AF4 AF5 AF6 AF7 AF8 AF9 AF10 AF11 AF12 AF13 AF14 AF15 SYS_AF LPTIM1/ TIM2/5/ 15/16/17 I2C3/ TIM1/2/3/4/5/8/1 5/20/ GPCOMP1 QUADSPI1/ I2C3/4/SAI1/ USB/ TIM8/15/20/GPC OMP3/ TSC I2C1/2/3/ 4/ TIM1/8/1 6/17 QUADSPI1/S PI1/2/3/4/I2S 2/3/ I2C4/ UART4/5/TIM 8/ Infrared QUADSPI1/ SPI2/3/ I2S2/3/ TIM1/5/8/20 / Infrared USART1/2/3 /CAN/ GPCOMP5/6 /7 I2C3/4/ UART4/5/L PUART1/G PCOMP1/2/ 3/4/5/6/7 CAN/ TIM1/8/1 5/CAN1/2 QUADSPI1/ TIM2/3/4/8/1 7 LPTIM1/ TIM1/8/C AN1/3 SDIO/FMC/ LPUART1/ SAI1 TIM1 SAI1/OPAMP 2 UART4/5/ SAI1/ TIM2/15/ UCPD EVENT PD0 - - - - - - TIM8_CH4 N - - CAN1_R X - - FMC_D2 - - EVENT OUT PD1 - - - - TIM8_ CH4 - TIM8_BKIN 2 - - CAN1_T X - - FMC_D3 - - EVENT OUT PD2 - - TIM3_ETR - TIM8_ BKIN UART5_RX - - - - - - - - - EVENT OUT PD3 - - TIM2_CH1/TIM2 _ETR - - - - USART2_CT S - - QUADSPI1_ BK2_NCS - FMC_CLK - - EVENT OUT PD4 - - TIM2_CH2 - - - - USART2_RT S_DE - CAN1_R XFD QUADSPI1_ BK2_IO0 - FMC_NOE - - EVENT OUT PD5 - - - - - - - USART2_TX - CAN1_T XFD QUADSPI1_ BK2_IO1 - FMC_NWE - - EVENT OUT PD6 - - TIM2_CH4 SAI1_D1 - - - USART2_ RX - CAN2_R XFD QUADSPI1_ BK2_IO2 - FMC_NWAIT SAI1_SD_A - EVENT OUT PD7 - - TIM2_CH3 - - - - USART2_ CK - - QUADSPI1_ BK2_IO3 - FMC_NCE/FM C_NE1 - - EVENT OUT PD8 - - - - - - - USART3_TX - - - - FMC_D13 - - EVENT OUT PD9 - - - - - - - USART3_ RX - CAN2_R XFD - - FMC_D14 - - EVENT OUT PD10 - - - - - - - USART3_ CK - CAN2_T XFD - - FMC_D15 - - EVENT OUT PD11 - TIM5_ETR - - I2C4_ SMBA - - USART3_ CTS - - - - FMC_A16 - - EVENT OUT PD12 - - TIM4_CH1 - - - - USART3_ RTS_DE - - - - FMC_A17 - - EVENT OUT PD13 - - TIM4_CH2 - - - - - - - - - FMC_A18 - - EVENT OUT PD14 - - TIM4_CH3 - - - - - - - - - FMC_D0 - - EVENT OUT PD15 - - TIM4_CH4 - - - SPI2_NSS - - - - - FMC_D1 - - EVENT OUT DS12712 Rev 2 Port D Port STM32G473xB STM32G473xC STM32G473xE AF0 Pinouts and pin description 72/223 Table 13. Alternate function (continued) AF1 AF2 AF3 AF4 AF5 AF6 AF7 AF8 AF9 AF10 AF11 AF12 AF13 AF14 AF15 SYS_AF LPTIM1/ TIM2/5/ 15/16/17 I2C3/ TIM1/2/3/4/5/8/1 5/20/ GPCOMP1 QUADSPI1/ I2C3/4/SAI1/ USB/ TIM8/15/20/GPC OMP3/ TSC I2C1/2/3/ 4/ TIM1/8/1 6/17 QUADSPI1/S PI1/2/3/4/I2S 2/3/ I2C4/ UART4/5/TIM 8/ Infrared QUADSPI1/ SPI2/3/ I2S2/3/ TIM1/5/8/20 / Infrared USART1/2/3 /CAN/ GPCOMP5/6 /7 I2C3/4/ UART4/5/L PUART1/G PCOMP1/2/ 3/4/5/6/7 CAN/ TIM1/8/1 5/CAN1/2 QUADSPI1/ TIM2/3/4/8/1 7 LPTIM1/ TIM1/8/C AN1/3 SDIO/FMC/ LPUART1/ SAI1 TIM1 SAI1/OPAMP 2 UART4/5/ SAI1/ TIM2/15/ UCPD EVENT PE0 - - TIM4_ETR TIM20_CH4N TIM16_ CH1 - TIM20_ETR USART1_ TX - CAN1_R XFD - - FMC_NBL0 - - EVENT OUT PE1 - - - - TIM17_ CH1 - TIM20_CH4 USART1_ RX - CAN1_T XFD - - FMC_NBL1 - - EVENT OUT PE2 TRACECK - TIM3_CH1 SAI1_CK1 - SPI4_SCK TIM20_CH1 - - - - - FMC_A23 SAI1_MCLK_ A - EVENT OUT PE3 TRACED0 - TIM3_CH2 - - SPI4_NSS TIM20_CH2 - - - - - FMC_A19 SAI1_SD_B - EVENT OUT PE4 TRACED1 - TIM3_CH3 SAI1_D2 - SPI4_NSS TIM20_CH1 N - - - - - FMC_A20 SAI1_FS_A - EVENT OUT PE5 TRACED2 - TIM3_CH4 SAI1_CK2 - SPI4_MISO TIM20_CH2 N - - - - - FMC_A21 SAI1_SCK_A - EVENT OUT PE6 TRACED3 - - SAI1_D1 - SPI4_MOSI TIM20_CH3 N - - - - - FMC_A22 SAI1_SD_A - EVENT OUT PE7 - - TIM1_ETR - - - - - - - - - FMC_D4 SAI1_SD_B - EVENT OUT PE8 - TIM5_CH3 TIM1_CH1N - - - - - - - - - FMC_D5 SAI1_SCK_B - EVENT OUT PE9 - TIM5_CH4 TIM1_CH1 - - - - - - - - - FMC_D6 SAI1_FS_B - EVENT OUT PE10 - - TIM1_CH2N - - - - - - - QUADSPI1_ CLK - FMC_D7 SAI1_MCLK_ B - EVENT OUT PE11 - - TIM1_CH2 - - SPI4_NSS - - - - QUADSPI1_ BK1_NCS - FMC_D8 - - EVENT OUT PE12 - - TIM1_CH3N - - SPI4_SCK - - - - QUADSPI1_ BK1_IO0 - FMC_D9 - - EVENT OUT PE13 - - TIM1_CH3 - - SPI4_MISO - - - - QUADSPI1_ BK1_IO1 - FMC_D10 - - EVENT OUT PE14 - - TIM1_CH4 - - SPI4_MOSI TIM1_ BKIN2 - - - QUADSPI1_ BK1_IO2 - FMC_D11 - - EVENT OUT PE15 - - TIM1_BKIN - - - TIM1_ CH4N USART3_ RX - - QUADSPI1_ BK1_IO3 - FMC_D12 - - EVENT OUT DS12712 Rev 2 Port E Port 73/223 Pinouts and pin description AF0 STM32G473xB STM32G473xC STM32G473xE Table 13. Alternate function (continued) AF1 AF2 AF3 AF4 AF5 AF6 AF7 AF8 AF9 AF10 AF11 AF12 AF13 AF14 AF15 SYS_AF LPTIM1/ TIM2/5/ 15/16/17 I2C3/ TIM1/2/3/4/5/8/1 5/20/ GPCOMP1 QUADSPI1/ I2C3/4/SAI1/ USB/ TIM8/15/20/GPC OMP3/ TSC I2C1/2/3/ 4/ TIM1/8/1 6/17 QUADSPI1/S PI1/2/3/4/I2S 2/3/ I2C4/ UART4/5/TIM 8/ Infrared QUADSPI1/ SPI2/3/ I2S2/3/ TIM1/5/8/20 / Infrared USART1/2/3 /CAN/ GPCOMP5/6 /7 I2C3/4/ UART4/5/L PUART1/G PCOMP1/2/ 3/4/5/6/7 CAN/ TIM1/8/1 5/CAN1/2 QUADSPI1/ TIM2/3/4/8/1 7 LPTIM1/ TIM1/8/C AN1/3 SDIO/FMC/ LPUART1/ SAI1 TIM1 SAI1/OPAMP 2 UART4/5/ SAI1/ TIM2/15/ UCPD EVENT PF0 - - - - I2C2_ SDA SPI2_NSS/I2 S2_WS TIM1_CH3 N - - - - - - - - EVENT OUT PF1 - - - - - SPI2_SCK/I2 S2_CK - - - - - - - - - EVENT OUT PF2 - - TIM20_CH3 - I2C2_ SMBA - - - - - - - FMC_A2 - - EVENT OUT PF3 - - TIM20_CH4 - I2C3_ SCL - - - - - - - FMC_A3 - - EVENT OUT PF4 - - COMP1_OUT TIM20_CH1N I2C3_ SDA - - - - - - - FMC_A4 - - EVENT OUT PF5 - - TIM20_CH2N - - - - - - - - - FMC_A5 - - EVENT OUT PF6 - TIM5_ETR TIM4_CH4 SAI1_SD_B I2C2_ SCL - TIM5_CH1 USART3_ RTS - - QUADSPI1_ BK1_IO3 - - - - EVENT OUT PF7 - - TIM20_BKIN - - - TIM5_CH2 - - - QUADSPI1_ BK1_IO2 - FMC_A1 SAI1_MCLK_ B - EVENT OUT PF8 - - TIM20_BKIN2 - - - TIM5_CH3 - - - QUADSPI1_ BK1_IO0 - FMC_A24 SAI1_SCK_B - EVENT OUT PF9 - - TIM20_BKIN TIM15_CH1 - SPI2_SCK TIM5_CH4 - - - QUADSPI1_ BK1_IO1 - FMC_A25 SAI1_FS_B - EVENT OUT PF10 - - TIM20_BKIN2 TIM15_CH2 - SPI2_SCK - - - - QUADSPI1_ CLK - FMC_A0 SAI1_D3 - EVENT OUT PF11 - - TIM20_ETR - - - - - - - - - FMC_NE4 - - EVENT OUT PF12 - - TIM20_CH1 - - - - - - - - - FMC_A6 - - EVENT OUT PF13 - - TIM20_CH2 - I2C4_ SMBA - - - - - - - FMC_A7 - - EVENT OUT PF14 - - TIM20_CH3 - I2C4_ SCL - - - - - - - FMC_A8 - - EVENT OUT PF15 - - TIM20_CH4 - I2C4_ SDA - - - - - - - FMC_A9 - - EVENT OUT DS12712 Rev 2 Port F Port STM32G473xB STM32G473xC STM32G473xE AF0 Pinouts and pin description 74/223 Table 13. Alternate function (continued) AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7 AF8 AF9 AF10 AF11 AF12 AF13 AF14 AF15 SYS_AF LPTIM1/ TIM2/5/ 15/16/17 I2C3/ TIM1/2/3/4/5/8/1 5/20/ GPCOMP1 QUADSPI1/ I2C3/4/SAI1/ USB/ TIM8/15/20/GPC OMP3/ TSC I2C1/2/3/ 4/ TIM1/8/1 6/17 QUADSPI1/S PI1/2/3/4/I2S 2/3/ I2C4/ UART4/5/TIM 8/ Infrared QUADSPI1/ SPI2/3/ I2S2/3/ TIM1/5/8/20 / Infrared USART1/2/3 /CAN/ GPCOMP5/6 /7 I2C3/4/ UART4/5/L PUART1/G PCOMP1/2/ 3/4/5/6/7 CAN/ TIM1/8/1 5/CAN1/2 QUADSPI1/ TIM2/3/4/8/1 7 LPTIM1/ TIM1/8/C AN1/3 SDIO/FMC/ LPUART1/ SAI1 TIM1 SAI1/OPAMP 2 UART4/5/ SAI1/ TIM2/15/ UCPD EVENT PG0 - - TIM20_CH1N - - - - - - - - - FMC_A10 - - EVENT OUT PG1 - - TIM20_CH2N - - - - - - - - - FMC_A11 - - EVENT OUT PG2 - - TIM20_CH3N - - SPI1_SCK - - - - - - FMC_A12 - - EVENT OUT PG3 - - TIM20_BKIN - I2C4_ SCL SPI1_MISO TIM20_CH4 N - - - - - FMC_A13 - - EVENT OUT PG4 - - TIM20_BKIN2 - I2C4_ SDA SPI1_MOSI - - - - - - FMC_A14 - - EVENT OUT PG5 - - TIM20_ETR - - SPI1_NSS - - LPUART1_ CTS - - - FMC_A15 - - EVENT OUT PG6 - - TIM20_BKIN - I2C3_ SMBA - - - LPUART1_ RTS_DE - - - FMC_INT - - EVENT OUT PG7 - - - SAI1_CK1 I2C3_ SCL - - - LPUART1_ TX - - - FMC_INT SAI1_MCLK_ A - EVENT OUT PG8 - - - - I2C3_ SDA - - - LPUART1_ RX - - - FMC_NE3 - - EVENT OUT PG9 - - - - - - SPI3_SCK USART1_TX - - - - FMC_NCE/FM C_NE2 - TIM15_C H1N EVENT OUT PG10 MCO - - - - - - - - - - - - - - - DS12712 Rev 2 Port G Port STM32G473xB STM32G473xC STM32G473xE Table 13. Alternate function (continued) Pinouts and pin description 75/223 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE 5 Electrical characteristics 5.1 Parameter conditions Unless otherwise specified, all voltages are referenced to VSS. 5.1.1 Minimum and maximum values Unless otherwise specified, the minimum and maximum values are guaranteed in the worst conditions of ambient temperature, supply voltage and frequencies by tests in production on 100% of the devices with an ambient temperature at TA = 25 °C and TA = TAmax (given by the selected temperature range). Data based on characterization results, design simulation and/or technology characteristics are indicated in the table footnotes and are not tested in production. Based on characterization, the minimum and maximum values refer to sample tests and represent the mean value plus or minus three times the standard deviation (mean ±3σ). 5.1.2 Typical values Unless otherwise specified, typical data are based on TA = 25 °C, VDD = VDDA = 3 V. They are given only as design guidelines and are not tested. Typical ADC accuracy values are determined by characterization of a batch of samples from a standard diffusion lot over the full temperature range, where 95% of the devices have an error less than or equal to the value indicated (mean ±2σ). 5.1.3 Typical curves Unless otherwise specified, all typical curves are given only as design guidelines and are not tested. 5.1.4 Loading capacitor The loading conditions used for pin parameter measurement are shown in Figure 13. 5.1.5 Pin input voltage The input voltage measurement on a pin of the device is described in Figure 14. Figure 13. Pin loading conditions Figure 14. Pin input voltage MCU pin MCU pin C = 50 pF VIN MS19210V1 76/223 DS12712 Rev 2 MS19211V1 STM32G473xB STM32G473xC STM32G473xE 5.1.6 Electrical characteristics Power supply scheme Figure 15. Power supply scheme VBAT Backup circuitry (LSE, RTC, Backup registers) 1.55 – 3.6 V Power switch VDD VCORE n x VDD Regulator OUT n x 100 nF GPIOs IN +1 x 4.7 μF Level shifter VDDIO IO logic Kernel logic (CPU, Digital & Memories) n x VSS VDDA VREF+ VREF VREF+ 10 nF +1 μF Reset block Temp. sensor PLL, HSI16, HSI48 VDDA 100 nF +1 μF VREF- ADCs/ DACs/ OPAMPs/ COMPs/ VREFBUF Standby circuitry (Wakeup logic, IWDG) VSSA MS60206V1 Caution: Each power supply pair (VDD/VSS, VDDA/VSSA etc.) must be decoupled with filtering ceramic capacitors as shown above. These capacitors must be placed as close as possible to, or below, the appropriate pins on the underside of the PCB to ensure the good functionality of the device. DS12712 Rev 2 77/223 199 Electrical characteristics 5.1.7 STM32G473xB STM32G473xC STM32G473xE Current consumption measurement Figure 16. Current consumption measurement IDD_VBAT IDD IDDA VBAT VDD VDDA MS60200V1 The IDD_ALL parameters given in Table 21 to Table 28 represent the total MCU consumption including the current supplying VDD, VDDA and VBAT. 5.2 Absolute maximum ratings Stresses above the absolute maximum ratings listed in Table 14: Voltage characteristics, Table 15: Current characteristics and Table 16: Thermal characteristics may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Exposure to maximum rating conditions for extended periods may affect device reliability. Device mission profile (application conditions) is compliant with JEDEC JESD47 qualification standard, extended mission profiles are available on demand. Table 14. Voltage characteristics(1) Symbol VDD - VSS VIN(2) Ratings Min Max -0.3 4.0 Input voltage on FT_xxx pins except FT_c pins VSS-0.3 min (VDD, VDDA) + 4.0(3)(4) Input voltage on FT_c pins VSS-0.3 5.5 Input voltage on TT_xx pins VSS-0.3 4.0 Input voltage on any other pins VSS-0.3 4.0 External main supply voltage (including VDD, VDDA and VBAT) |∆VDDx| Variations between different VDDX power pins of the same domain - 50 |VSSx-VSS| Variations between all the different ground pins(5) - 50 Unit V mV 1. All main power (VDD, VDDA, VBAT) and ground (VSS, VSSA) pins must always be connected to the external power supply, in the permitted range. 2. VIN maximum must always be respected. Refer to Table 15: Current characteristics for the maximum allowed injected current values. 78/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Electrical characteristics 3. This formula has to be applied only on the power supplies related to the IO structure described in the pin definition table. 4. To sustain a voltage higher than 4 V the internal pull-up/pull-down resistors must be disabled. 5. Include VREF- pin. Table 15. Current characteristics Symbol Ratings Max ∑IVDD Total current into sum of all VDD power lines (source)(1) 150 ∑IVSS (sink)(1) 150 Total current out of sum of all VSS ground lines IVDD(PIN) Maximum current into each VDD power pin (source)(1) 100 IVSS(PIN) (1) 100 IIO(PIN) Maximum current out of each VSS ground pin (sink) Output current sunk by any I/O and control pin except FT_f 20 Output current sunk by any FT_f pin 20 Output current sourced by any I/O and control pin ∑IIO(PIN) Total output current sunk by sum of all I/Os and control Unit mA 20 pins(2) 100 (2) Total output current sourced by sum of all I/Os and control pins IINJ(PIN)(3) Injected current on FT_xxx, TT_xx, NRST pins ∑|IINJ(PIN)| Total injected current (sum of all I/Os and control pins)(5) 100 -5/0(4) ±25 1. All main power (VDD, VDDA, VBAT) and ground (VSS, VSSA) pins must always be connected to the external power supplies, in the permitted range. 2. This current consumption must be correctly distributed over all I/Os and control pins. The total output current must not be sunk/sourced between two consecutive power supply pins referring to high pin count LQFP packages. 3. Positive injection (when VIN > VDD) is not possible on these I/Os and does not occur for input voltages lower than the specified maximum value. 4. A negative injection is induced by VIN < VSS. IINJ(PIN) must never be exceeded. Refer also to Table 14: Voltage characteristics for the minimum allowed input voltage values. 5. When several inputs are submitted to a current injection, the maximum ∑|IINJ(PIN)| is the absolute sum of the negative injected currents (instantaneous values). Table 16. Thermal characteristics Symbol TSTG TJ Ratings Storage temperature range Maximum junction temperature DS12712 Rev 2 Value Unit –65 to +150 °C 150 °C 79/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE 5.3 Operating conditions 5.3.1 General operating conditions Table 17. General operating conditions Symbol Parameter Conditions Min Max fHCLK Internal AHB clock frequency - 0 170 fPCLK1 Internal APB1 clock frequency - 0 170 fPCLK2 Internal APB2 clock frequency - 0 170 Standard operating voltage - 1.71(1) 3.6 VDD VDDA Analog supply voltage ADC 1.62 DAC 1 MSPS or DAC 15 MSPS or OPAMP 1.8 COMP used 1.8 VREFBUF used 2.4 ADC, DAC, OPAMP, COMP, VREFBUF not used VBAT VIN Backup operating voltage - PD TA TJ Power dissipation Power dissipation V 3.6 TT_xx -0.3 VDD+0.3 FT_c -0.3 5 -0.3 MIN(MIN(VDD, VDDA)+3.6 V, 5.5 V)(2)(3) V V See Section 6.9: Thermal characteristics for application appropriate thermal resistance and package. Power dissipation is then calculated according ambient temperature (TA) and maximum junction temperature (TJ) and selected thermal resistance. mW See Section 6.9: Thermal characteristics for application appropriate thermal resistance and package. Power dissipation is then calculated according to ambient temperature (TA), maximum junction temperature (TJ) and selected thermal resistance. mW Ambient temperature for the suffix 6 version Maximum power dissipation -40 85 Low-power dissipation(4) -40 105 Ambient temperature for the suffix 3 version Maximum power dissipation -40 125 Low-power dissipation(4) -40 130 Suffix 6 version -40 105 Suffix 3 version -40 130 Junction temperature range V 3.6 3.6 I/O input voltage MHz 3.6 1.55 All I/O except TT_xx and FT_c PD 0 Unit 1. When RESET is released functionality is guaranteed down to VBOR0 Min. 2. This formula has to be applied only on the power supplies related to the IO structure described by the pin definition table. Maximum I/O input voltage is the smallest value between MIN(VDD, VDDA)+3.6 V and 5.5V. 80/223 DS12712 Rev 2 °C °C STM32G473xB STM32G473xC STM32G473xE Electrical characteristics 3. For operation with voltage higher than Min (VDD, VDDA) +0.3 V, the internal Pull-up and Pull-Down resistors must be disabled. 4. In low-power dissipation state, TA can be extended to this range as long as TJ does not exceed TJmax (see Section 6.9: Thermal characteristics). DS12712 Rev 2 81/223 199 Electrical characteristics 5.3.2 STM32G473xB STM32G473xC STM32G473xE Operating conditions at power-up / power-down The parameters given in Table 18 are derived from tests performed under the ambient temperature condition summarized in Table 17. Table 18. Operating conditions at power-up / power-down Symbol Parameter VDD rise time rate tVDD Min Max 0 ∞ 10 ∞ 0 ∞ 10 ∞ - VDD fall time rate VDDA rise time rate tVDDA 5.3.3 Conditions - VDDA fall time rate Unit µs/V µs/V Embedded reset and power control block characteristics The parameters given in Table 19 are derived from tests performed under the ambient temperature conditions summarized in Table 17: General operating conditions. Table 19. Embedded reset and power control block characteristics Symbol tRSTTEMPO(2) 82/223 Parameter Reset temporization after BOR0 is detected VBOR0(2) Brown-out reset threshold 0 VBOR1 Brown-out reset threshold 1 VBOR2 Brown-out reset threshold 2 VBOR3 Brown-out reset threshold 3 VBOR4 Brown-out reset threshold 4 VPVD0 Programmable voltage detector threshold 0 VPVD1 PVD threshold 1 VPVD2 PVD threshold 2 VPVD3 PVD threshold 3 Conditions(1) Min Typ Max Unit - 250 400 μs Rising edge 1.62 1.66 1.7 Falling edge 1.6 1.64 1.69 Rising edge 2.06 2.1 2.14 Falling edge 1.96 2 2.04 Rising edge 2.26 2.31 2.35 Falling edge 2.16 2.20 2.24 Rising edge 2.56 2.61 2.66 Falling edge 2.47 2.52 2.57 Rising edge 2.85 2.90 2.95 Falling edge 2.76 2.81 2.86 Rising edge 2.1 2.15 2.19 Falling edge 2 2.05 2.1 Rising edge 2.26 2.31 2.36 Falling edge 2.15 2.20 2.25 Rising edge 2.41 2.46 2.51 Falling edge 2.31 2.36 2.41 Rising edge 2.56 2.61 2.66 Falling edge 2.47 2.52 2.57 VDD rising DS12712 Rev 2 V V V V V V V V V STM32G473xB STM32G473xC STM32G473xE Electrical characteristics Table 19. Embedded reset and power control block characteristics (continued) Conditions(1) Min Typ Max Rising edge 2.69 2.74 2.79 Falling edge 2.59 2.64 2.69 Rising edge 2.85 2.91 2.96 Falling edge 2.75 2.81 2.86 Rising edge 2.92 2.98 3.04 Falling edge 2.84 2.90 2.96 Hysteresis in continuous Hysteresis voltage of BORH0 mode - 20 - Hysteresis in other mode - 30 - Symbol Parameter VPVD4 PVD threshold 4 VPVD5 PVD threshold 5 VPVD6 PVD threshold 6 Vhyst_BORH0 Unit V V V mV Hysteresis voltage of BORH (except BORH0) and PVD - - 100 - mV BOR(3) (except BOR0) and IDD (BOR_PVD)(2) PVD consumption from VDD - - 1.1 1.6 µA Vhyst_BOR_PVD VPVM1 VDDA peripheral voltage monitoring (COMP/ADC) Rising edge 1.61 1.65 1.69 Falling edge 1.6 1.64 1.68 VPVM2 VDDA peripheral voltage monitoring (OPAMP/DAC) Rising edge 1.78 1.82 1.86 Falling edge 1.77 1.81 1.85 V V Vhyst_PVM1 PVM1 hysteresis - - 10 - mV Vhyst_PVM2 PVM2 hysteresis - - 10 - mV - - 2 - µA IDD PVM1 and PVM2 (PVM1/PVM2) consumption from VDD (2) 1. Continuous mode means Run/Sleep modes, or temperature sensor enable in Low-power run/Low-power sleep modes. 2. Guaranteed by design. 3. BOR0 is enabled in all modes (except shutdown) and its consumption is therefore included in the supply current characteristics tables. DS12712 Rev 2 83/223 199 Electrical characteristics 5.3.4 STM32G473xB STM32G473xC STM32G473xE Embedded voltage reference The parameters given in Table 20 are derived from tests performed under the ambient temperature and supply voltage conditions summarized in Table 17: General operating conditions. Table 20. Embedded internal voltage reference Symbol Parameter VREFINT Internal reference voltage Conditions Min –40 °C < TA < +130 °C 1.182 1.212 Max Unit 1.232 V ADC sampling time when reading the internal reference voltage - 4(2) - - µs Start time of reference voltage buffer when ADC is enable - - 8 12(2) µs VREFINT buffer consumption from VDD IDD(VREFINTBUF) when converted by ADC - - 12.5 20(2) µA tS_vrefint (1) tstart_vrefint ∆VREFINT Internal reference voltage spread over the temperature range VDD = 3 V - 5 7.5(2) mV TCoeff Average temperature coefficient –40°C < TA < +130°C - 30 50(2) ppm/°C ACoeff Long term stability 1000 hours, T = 25°C - 300 1000(2) ppm Average voltage coefficient 3.0 V < VDD < 3.6 V - 250 1200(2) ppm/V 24 25 26 49 50 51 74 75 76 VDDCoeff VREFINT_DIV1 1/4 reference voltage VREFINT_DIV2 1/2 reference voltage VREFINT_DIV3 3/4 reference voltage - 1. The shortest sampling time is determined in the application by multiple iterations. 2. Guaranteed by design. 84/223 Typ DS12712 Rev 2 % VREFINT STM32G473xB STM32G473xC STM32G473xE Electrical characteristics Figure 17. VREFINT versus temperature V 1.235 1.23 1.225 1.22 1.215 1.21 1.205 1.2 1.195 1.19 1.185 -40 -20 0 20 40 Mean 60 Min 80 100 120 °C Max MSv40169V2 5.3.5 Supply current characteristics The current consumption is a function of several parameters and factors such as the operating voltage, ambient temperature, I/O pin loading, device software configuration, operating frequencies, I/O pin switching rate, program location in memory and executed binary code The current consumption is measured as described in Figure 16: Current consumption measurement. Typical and maximum current consumption The MCU is placed under the following conditions: • All I/O pins are in analog input mode • All peripherals are disabled except when explicitly mentioned • The Flash memory access time is adjusted with the minimum wait states number, depending on the fHCLK frequency (refer to the table “number of wait states according to CPU clock (HCLK) frequency” available in the reference manual RM0440 "STM32G4 Series advanced Arm®-based 32-bit MCUs"). • When the peripherals are enabled fPCLK = fHCLK • The voltage scaling Range 1 is adjusted to fHCLK frequency as follows: – Voltage Range 1 Boost mode for 150 MHz < fHCLK ≤ 170 MHz – Voltage Range 1 Normal mode for 26 MHz < fHCLK ≤ 150 MHz The parameters given in Table 21 to Table 28 are derived from tests performed under ambient temperature and supply voltage conditions summarized in Table 17: General operating conditions. DS12712 Rev 2 85/223 199 Condition Symbol Parameter - Typ Voltage scaling Range 2 Range 1 Unit 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 26 MHz 3.65 3.85 4.45 5.1 6.45 4.00 4.50 6.50 8.40 13.00 16 MHz 2.30 2.55 3.1 3.8 5.15 2.60 3.20 5.20 7.10 11.00 8 MHz 1.25 1.5 2.05 2.8 4.1 1.60 2.10 4.10 6.00 9.80 4 MHz 0.75 0.955 1.5 2.3 3.6 0.94 1.50 3.50 5.40 9.30 2 MHz 0.47 0.69 1.25 2 3.35 0.65 1.30 3.20 5.10 9.00 1 MHz 0.34 0.55 1.1 1.9 3.2 0.51 1.10 3.00 5.00 8.90 100 KHz 0.22 0.43 0.98 1.75 3.1 0.38 0.94 2.90 4.80 8.70 170 MHz 29.50 29.5 31 32 34.5 30.00 30.00 34.00 36.00 42.00 150 MHz 24.50 26 27 28 30 25.00 27.00 29.00 32.00 37.00 120 MHz 19.50 20 20.5 21.5 23.5 20.00 21.00 23.00 25.00 31.00 80 MHz 13.00 13.5 14 15.5 17 14.00 14.00 16.00 19.00 24.00 72 MHz 12.00 12 13 14 15.5 13.00 13.00 16.00 18.00 23.00 64 MHz 10.50 11 11.5 12.5 14.5 11.00 12.00 14.00 16.00 22.00 48 MHz 7.90 8.2 9 9.7 11.5 8.40 9.00 12.00 14.00 20.00 32 MHz 5.40 5.65 6.4 7.2 8.85 5.80 6.50 9.00 12.00 17.00 24 MHz 4.10 4.35 5.1 5.95 7.6 4.50 5.20 7.80 11.00 16.00 16 MHz 2.80 3.1 3.8 4.7 6.3 3.20 3.90 6.50 8.90 14.00 mA STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 IDD (Run) Supply current in Run mode fHCLK = fHSE up to Range 1 48 MHz included, Boost bypass mode PLL mode ON above 48 MHz all peripherals disable fHCLK Max Electrical characteristics 86/223 Table 21. Current consumption in Run and Low-power run modes, code with data processing running from Flash in single Bank, ART enable (Cache ON Prefetch OFF) Condition Symbol Parameter - Typ Voltage scaling SYSCLK source is HSE in bypass mode all peripherals disable Supply current IDD (LPRun) in Low-power run mode SYSCLK source is HSI16 all peripherals disable fHCLK Max Unit DS12712 Rev 2 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 2 MHz 455 725 1350 2250 3800 720 1500 3700 6000 11000 1 MHz 280 545 1200 2100 3600 570 1300 3500 5800 11000 250 KHz 160 435 1100 2000 3500 410 1100 3400 5700 10000 62.5 KHz 130 405 1050 1950 3500 390 1000 3400 5600 11000 2 MHz 920 1200 1850 2750 4250 1300 2000 4200 6600 11000 1 MHz 780 1100 1700 2650 4150 1200 1900 4100 6500 11000 250 KHz 725 980 1600 2500 4050 1100 1800 4100 6400 11000 62.5 KHz 720 955 1600 2500 4000 1100 1700 4000 6300 11000 µA STM32G473xB STM32G473xC STM32G473xE Table 21. Current consumption in Run and Low-power run modes, code with data processing running from Flash in single Bank, ART enable (Cache ON Prefetch OFF) (continued) Electrical characteristics 87/223 Conditions Symbol Parameter - Voltage Supply current in Run mode fHCLK = fHSE up to 48MHz Range 1 included, bypass mode Boost mode PLL ON above 48 MHz all peripherals disable Range 1 Unit 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 26 MHz 3.70 3.9 4.45 5.15 16 MHz 2.35 2.55 3.1 8 MHz 1.25 1.5 4 MHz 0.75 2 MHz 105°C 125°C 6.45 4.10 4.60 6.50 8.50 13.00 3.85 5.15 2.70 3.20 5.20 7.10 11.00 2.05 2.8 4.15 1.60 2.10 4.10 6.00 9.90 0.97 1.5 2.3 3.6 0.94 1.60 3.50 5.40 9.30 0.47 0.7 1.25 2.05 3.35 0.65 1.30 3.20 5.10 9.00 1 MHz 0.34 0.56 1.1 1.9 3.2 0.51 1.10 3.00 5.00 8.90 100 KHz 0.22 0.44 0.975 1.8 3.1 0.38 0.95 2.90 4.80 8.70 170 MHz 29.50 30 31 32 34.5 30.00 31.00 34.00 36.00 42.00 150 MHz 24.50 24.5 25.5 26.5 28.5 25.00 26.00 28.00 30.00 35.00 120 MHz 19.50 20 20.5 22 23.5 20.00 21.00 23.00 26.00 31.00 80 MHz 13.00 13.5 14.5 15.5 17 14.00 14.00 17.00 19.00 24.00 72 MHz 12.00 12.5 13 14 15.5 13.00 13.00 16.00 18.00 23.00 64 MHz 10.50 11 11.5 13 14.5 11.00 12.00 14.00 17.00 22.00 48 MHz 7.95 8.3 9 10 11.5 8.50 9.10 12.00 15.00 20.00 32 MHz 5.40 5.7 6.45 7.25 8.9 5.80 6.50 9.10 12.00 17.00 24 MHz 4.10 4.4 5.1 6 7.65 4.50 5.30 7.80 11.00 16.00 16 MHz 2.85 3.15 3.8 4.75 6.35 3.20 4.00 6.50 8.90 14.00 mA STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 IDD (Run) fHCLK scaling Range 2 MAX(1) TYP Electrical characteristics 88/223 Table 22. Current consumption in Run and Low-power run modes, code with data processing running from Flash in dual bank, ART enable (Cache ON Prefetch OFF) Conditions Symbol Parameter - IDD (LPRun) Supply current in Low-power run mode Voltage fHCLK SYSCLK source is HSI16 all peripherals disable Unit DS12712 Rev 2 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 2 MHz 450 725 1350 2250 3800 725 1500 3700 6000 11000 1 MHz 270 575 1200 2150 3650 575 1300 3500 5800 11000 250 KHz 185 460 1050 2000 3550 460 1100 3400 5700 11000 62.5 KHz 130 430 1050 2000 3500 430 1100 3400 5600 11000 2 MHz 970 1200 1850 2750 4300 1200 2000 4200 6600 12000 1 MHz 800 1100 1700 2650 4150 1100 1900 4100 6500 11000 250 KHz 680 990 1600 2550 4050 990 1800 4100 6400 11000 62.5 KHz 695 965 1600 2500 4050 965 1700 4000 6400 11000 scaling SYSCLK source is HSE in bypass mode all peripherals disable MAX(1) TYP µA STM32G473xB STM32G473xC STM32G473xE Table 22. Current consumption in Run and Low-power run modes, code with data processing running from Flash in dual bank, ART enable (Cache ON Prefetch OFF) (continued) 1. Guaranteed by characterization results, unless otherwise specified. Electrical characteristics 89/223 Typ Condition Symbol Parameter - Voltage scaling Range 2 Range 1 Unit 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 26 MHz 3.65 3.85 4.4 5.25 6.8 4.00 4.60 6.50 8.40 13.00 16 MHz 2.75 2.95 3.5 4.35 5.9 3.10 3.70 5.50 7.50 12.00 8 MHz 1.50 1.65 2.2 3.05 4.55 1.70 2.40 4.20 6.10 10.00 4 MHz 0.84 1 1.55 2.35 3.9 1.10 1.70 3.60 5.50 9.30 2 MHz 0.51 0.68 1.2 2.05 3.55 0.70 1.40 3.20 5.10 9.00 1 MHz 0.34 0.51 1.05 1.85 3.35 0.53 1.20 3.10 4.90 8.80 100 KHz 0.20 0.36 0.895 1.7 3.2 0.38 0.99 2.90 4.80 8.70 170 MHz 20.00 20.5 21.5 22.5 24.5 21.00 22.00 25.00 27.00 47.00 150 MHz 18.00 18.5 19 20 22 19.00 16.00 19.00 21.00 26.00 120 MHz 16.50 16.5 17.5 18.5 20.5 18.00 18.00 21.00 23.00 28.00 80 MHz 13.00 13 14 15 17 14.00 15.00 17.00 19.00 24.00 72 MHz 11.50 12 12.5 13.5 15.5 13.00 13.00 16.00 18.00 23.00 64 MHz 10.50 10.5 11.5 12.5 14.5 11.00 12.00 14.00 17.00 22.00 48 MHz 7.95 8.25 9 10 12 8.30 8.90 12.00 14.00 19.00 32 MHz 6.50 6.75 7.5 8.55 10.5 8.10 8.70 11.00 13.00 19.00 24 MHz 4.95 5.2 5.9 6.95 8.8 5.10 6.00 8.50 11.00 16.00 16 MHz 3.40 3.65 4.3 5.35 7.15 3.70 4.50 7.00 9.40 15.00 mA STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 IDD (Run) Supply current in Run mode fHCLK = fHSE up Range 1 to 48 MHz Boost included, bypass mode mode PLL ON above 48 MHz all peripherals disable fHCLK Max Electrical characteristics 90/223 Table 23. Current consumption in Run and Low-power run modes, code with data processing running from Flash in single bank, ART disable Condition Symbol Parameter - Typ Voltage scaling SYSCLK source is HSE in bypass mode all peripherals disable Supply current IDD (LPRun) in Low-power run mode SYSCLK source is HSI16 all peripherals disable fHCLK Max Unit DS12712 Rev 2 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 2 MHz 505 700 1300 2250 3950 780 1500 3800 6000 11000 1 MHz 295 500 1100 2050 3750 540 1300 3600 5900 11000 250 KHz 145 350 970 1900 3600 410 1100 3400 5700 11000 62.5 KHz 110 310 935 1850 3550 380 1100 3400 5700 11000 2 MHz 940 1150 1800 2700 4400 1300 2100 4400 6600 11000 1 MHz 830 1000 1600 2550 4250 1200 1900 4300 6500 11000 250 KHz 700 890 1500 2400 4100 1000 1800 4100 6400 11000 62.5 KHz 645 855 1450 2400 4100 1100 1800 4100 6400 11000 µA STM32G473xB STM32G473xC STM32G473xE Table 23. Current consumption in Run and Low-power run modes, code with data processing running from Flash in single bank, ART disable (continued) Electrical characteristics 91/223 Symbol Parameter - Voltage Supply current in Run mode fHCLK = fHSE up to 48MHz Range 1 included, Boost bypass mode mode PLL ON above 48 MHz all peripherals disable Range 1 Unit 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 26 MHz 3.35 3.5 4.1 4.95 6.45 3.70 4.20 6.20 8.10 12.00 16 MHz 2.65 2.8 3.4 4.2 5.75 3.00 3.50 5.40 7.40 12.00 8 MHz 1.40 1.6 2.15 2.95 4.45 1.70 2.30 4.20 6.10 10.00 4 MHz 0.81 0.975 1.5 2.35 3.85 1.10 1.60 3.60 5.50 9.30 2 MHz 0.49 0.655 1.2 2 3.5 0.69 1.30 3.20 5.10 9.00 1 MHz 0.34 0.495 1.05 1.85 3.35 0.53 1.10 3.10 5.00 8.80 100 KHz 0.19 0.355 0.895 1.7 3.2 0.38 0.95 2.90 4.80 8.70 170 MHz 18.00 18 19 20 22 19.00 20.00 22.00 25.00 45.00 150 MHz 16.00 16.5 17 18 20 17.00 18.00 20.00 22.00 27.00 120 MHz 14.50 15 15.5 16.5 18.5 16.00 16.00 18.00 21.00 26.00 80 MHz 12.00 12 13 14 15.5 13.00 13.00 16.00 18.00 23.00 72 MHz 10.50 11 11.5 12.5 14.5 12.00 12.00 15.00 17.00 22.00 64 MHz 9.45 9.7 10.5 11.5 13.5 9.90 11.00 13.00 16.00 21.00 48 MHz 7.25 7.55 8.25 9.3 11 7.50 8.20 11.00 14.00 18.00 32 MHz 6.15 6.4 7.1 8.15 10 6.60 7.30 9.80 13.00 18.00 24 MHz 4.70 4.95 5.65 6.65 8.5 5.10 5.80 8.30 11.00 16.00 16 MHz 3.20 3.45 4.15 5.15 6.95 3.60 4.40 6.80 9.30 15.00 mA STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 IDD (Run) fHCLK scaling Range 2 MAX(1) TYP Conditions Electrical characteristics 92/223 Table 24. Current consumption in Run and Low-power run modes, code with data processing running from Flash in dual bank, ART disable Conditions Symbol Parameter - IDD (LPRun) Supply current in Low-power run mode Voltage fHCLK SYSCLK source is HSI16 all peripherals disable Unit DS12712 Rev 2 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 2 MHz 480 665 1300 2200 3900 710 1400 3800 6000 11000 1 MHz 270 485 1100 2050 3750 540 1200 3600 5900 11000 250 KHz 145 340 965 1900 3600 410 1100 3400 5700 11000 62.5 KHz 120 310 930 1850 3550 380 1100 3400 5700 11000 2 MHz 990 1150 1750 2700 4350 1300 2000 4400 6600 11000 1 MHz 830 995 1600 2550 4200 1200 1900 4300 6500 11000 250 KHz 720 880 1500 2400 4100 1100 1700 4100 6400 11000 62.5 KHz 660 845 1450 2400 4050 1100 1700 4100 6400 11000 scaling SYSCLK source is HSE in bypass mode all peripherals disable MAX(1) TYP µA STM32G473xB STM32G473xC STM32G473xE Table 24. Current consumption in Run and Low-power run modes, code with data processing running from Flash in dual bank, ART disable (continued) 1. Guaranteed by characterization results, unless otherwise specified. Electrical characteristics 93/223 Symbol Parameter - Voltage Range 1 Boost mode Range 1 Unit 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 26 MHz 3.35 3.55 4.1 4.95 16 MHz 2.15 2.35 2.9 8 MHz 1.15 1.35 4 MHz 0.69 2 MHz 105°C 125°C 6.45 3.70 4.30 6.20 8.10 12.00 3.7 5.25 2.50 3.00 4.90 6.90 11.00 1.9 2.7 4.2 1.40 2.00 3.90 5.90 9.70 0.855 1.4 2.2 3.7 0.89 1.50 3.40 5.30 9.20 0.43 0.595 1.15 1.95 3.45 0.63 1.20 3.10 5.10 8.90 1 MHz 0.30 0.47 1 1.8 3.3 0.50 1.10 3.00 4.90 8.80 100 KHz 0.19 0.355 0.89 1.7 3.2 0.38 0.94 2.90 4.80 8.70 170 MHz 26.00 26.5 27.5 28.5 30.5 28.00 28.00 30.00 33.00 150 MHz 21.50 22 22.5 23.5 25.5 23.00 23.00 25.00 28.00 120 MHz 17.50 17.5 18.5 19.5 21.5 19.00 19.00 21.00 24.00 28.00 80 MHz 11.50 12 12.5 13.5 15.5 13.00 13.00 16.00 18.00 23.00 72 MHz 10.50 11 11.5 12.5 14.5 12.00 12.00 14.00 17.00 22.00 64 MHz 9.45 9.7 10.5 11.5 13.5 9.90 11.00 13.00 16.00 21.00 48 MHz 7.25 7.5 8.2 9.25 11 7.60 8.20 11.00 14.00 18.00 32 MHz 4.90 5.15 5.85 6.9 8.7 5.40 6.10 8.60 11.00 16.00 24 MHz 3.75 4 4.7 5.7 7.5 4.20 4.90 7.40 9.80 15.00 16 MHz 2.60 2.85 3.5 4.5 6.3 3.00 3.70 6.20 8.60 14.00 38.00 (2) 33.00 (2) mA STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 IDD(Run) Supply current in Run mode fHCLK = fHSE up to 48MHz included, bypass mode PLL ON above 48 MHz all peripherals disable fHCLK scaling Range 2 MAX(1) TYP Conditions Electrical characteristics 94/223 Table 25. Current consumption in Run and Low-power run modes, code with data processing running from SRAM1 Conditions Symbol Parameter - IDD (LPRun) Supply current in Low-power run mode Voltage fHCLK SYSCLK source is HSI16 all peripherals disable Unit DS12712 Rev 2 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 2 MHz 365 570 1200 2150 3850 640 1400 3700 6000 11000 1 MHz 240 425 1050 2000 3650 500 1200 3500 5800 11000 250 KHz 135 315 945 1850 3550 390 1100 3400 5700 11000 62.5 KHz 105 285 915 1850 3550 350 990 3300 5600 11000 2 MHz 835 1050 1650 2600 4300 1300 1900 4300 6600 11000 1 MHz 775 940 1550 2500 4150 1200 1800 4200 6400 11000 250 KHz 640 860 1450 2400 4100 1100 1700 4100 6400 11000 62.5 KHz 640 830 1450 2350 4050 1100 1700 4100 6300 11000 scaling SYSCLK source is HSE in bypass mode all peripherals disable MAX(1) TYP µA STM32G473xB STM32G473xC STM32G473xE Table 25. Current consumption in Run and Low-power run modes, code with data processing running from SRAM1 (continued) 1. Guaranteed by characterization results, unless otherwise specified. 2. Guaranteed by test in production. Electrical characteristics 95/223 TYP TYP TYP TYP Single Bank Mode Dual Bank Mode Single Bank Mode Dual Bank Mode 25°C 25°C 25°C 25°C Reduced code(1) 3.65 3.7 140 142 Coremark 3.65 3.7 140 142 140 142 Conditions Symbol Parameter Code - Voltage scaling Range2 fHCLK=26MHz Supply current in Run mode mA Dhrystone2.1 3.65 3.7 Fibonacci 4.55 4.2 175 162 While(1) 2.90 3 112 115 Reduced code(1) 24.5 24.5 163 163 24 24 160 160 163 163 Coremark Range 1 fHCLK= 150 MHz Dhrystone2.1 mA 24.5 24.5 Fibonacci 22.5 28 150 187 While(1) 19.5 20 130 133 Reduced code(1) 29.5 29.5 174 174 29 29 171 171 174 174 Coremark Range 1 Boost mode Dhrystone2.1 fHCLK= 170 MHz Fibonacci While(1) mA 29.5 29.5 38 35 224 206 23.5 24 138 141 Unit µA/MHz µA/MHz µA/MHz STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 IDD (Run) fHCLK=fHSE up to 48 MHZ included, bypass mode PLL ON above 48 MHz all peripherals disable Unit Electrical characteristics 96/223 Table 26. Typical current consumption in Run and Low-power run modes, with different codes running from Flash, ART enable (Cache ON Prefetch OFF) TYP TYP Single Bank Mode Dual Bank Mode 25°C Reduced code(1) Coremark Conditions Symbol Parameter Code - IDD (LPRun) Supply current in Low-power run Voltage scaling SYSCLK source is HSI16 fHCLK = 2 MHz all peripherals disable TYP TYP Single Bank Mode Dual Bank Mode 25°C 25°C 25°C 920 970 460 485 905 985 453 493 458 458 Unit µA Dhrystone2.1 915 915 Fibonacci 1,050 950 525 475 While(1) 930 875 465 438 DS12712 Rev 2 1. Reduced code used for characterization results provided in Table 21, Table 23, Table 25. Unit µA/MHz STM32G473xB STM32G473xC STM32G473xE Table 26. Typical current consumption in Run and Low-power run modes, with different codes running from Flash, ART enable (Cache ON Prefetch OFF) (continued) Electrical characteristics 97/223 Single Bank Mode Dual Bank Mode Parameter 25°C 25°C 25°C 25°C Reduced code(1) 3.55 3.25 137 125 Coremark 3.45 3.2 133 123 Dhrystone2.1 3.55 3.25 137 125 Fibonacci 3.40 3 131 115 2.90 2.95 112 113 18.50 16.00 123 107 Coremark 17.50 15.50 117 103 Dhrystone2.1 18.50 16.00 123 107 Fibonacci 16.50 14.50 110 97 While(1) 19.50 19.50 130 130 Reduced code(1) 20.50 18.00 121 106 Coremark 20.00 17.50 118 103 Dhrystone2.1 20.50 18.00 121 106 Fibonacci 18.50 16.50 109 97 While(1) 23.50 24.00 138 141 Code - Voltage scaling Range 2 fHCLK= 26 MHz DS12712 Rev 2 While(1) IDD (Run) Supply current in Run mode fHCLK = fHSE up to 48 MHZ included, Range 1 bypass mode PLL ON above fHCLK= 150 MHz 48 MHz all peripherals disable Range 1 Boost mode fHCLK= 170 MHz (1) Reduced code Unit mA mA mA Single Bank Mode TYP Dual Bank Mode Unit µA/MHz µA/MHz µA/MHz STM32G473xB STM32G473xC STM32G473xE TYP Conditions Symbol TYP TYP Electrical characteristics 98/223 Table 27. Typical current consumption in Run and Low-power run modes, with different codes running from Flash, ART disable TYP Single Bank Mode Dual Bank Mode 25°C 25°C 25°C 25°C Reduced code(1) 970 1,000 485 500 Coremark 985 1,000 493 500 Dhrystone2.1 985 955 493 478 Fibonacci 1,050 990 525 495 While(1) 920 875 460 438 Conditions Symbol Parameter Code - IDD (LPRun) Supply current in Low-power run Voltage scaling SYSCLK source is HSI16 fHCLK = 2 MHz all peripherals disable TYP TYP DS12712 Rev 2 1. Reduced code used for characterization results provided in the first tables. Unit µA Single Bank Mode TYP Dual Bank Mode Unit µA/MHz STM32G473xB STM32G473xC STM32G473xE Table 27. Typical current consumption in Run and Low-power run modes, with different codes running from Flash, ART disable (continued) Electrical characteristics 99/223 Conditions Symbol Parameter - TYP Code Voltage scaling Range2 fHCLK=26 M Hz Reduced code(1) 3.25 125 Coremark 3.35 129 Dhrystone2.1 3.30 Fibonacci 3.30 127 While(1) 3.40 131 21.50 143 Coremark 22.50 150 Dhrystone2.1 21.50 Fibonacci 22.50 150 While(1) 20.00 133 26.00 153 Coremark 27.00 159 Dhrystone2.1 26.00 Fibonacci 27.50 162 While(1) 24.50 144 955 478 Coremark 890 445 Dhrystone2.1 915 Fibonacci 880 440 While(1) 905 453 Reduced Range 1 Boost mode fHCLK= 170 MHz Reduced IDD (LPRun) Supply current in fHCLK = fHSE = 2 MHz all peripherals disable Low-power run Unit 25°C 1. Reduced code used for characterization results provided in Table 21, Table 23, Table 25. code(1) code(1) code(1) mA mA mA µA 127 143 153 458 µA/MHz µA/MHz µA/MHz µA/MHz STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 IDD (Run) Unit 25°C Reduced fHCLK = fHSE up to 48 MHZ Range 1 Supply current in included, bypass mode f = 150 PLL ON above 48 MHz all HCLK Run mode MHz peripherals disable TYP Electrical characteristics 100/223 Table 28. Typical current consumption in Run and Low-power run modes, with different codes running from SRAM1 Conditions Symbol Parameter - TYP Reduced code(1) 2.65 102 Coremark 2.80 108 Dhrystone2.1 2.65 Fibonacci 2.60 100 While(1) 2.45 94 17.50 117 Coremark 18.00 120 Dhrystone2.1 17.50 Fibonacci 17.00 113 16 107 21.00 124 Coremark 22.00 129 Dhrystone2.1 21.00 Fibonacci 20.50 121 While(1) 19.50 115 890 445 Coremark 830 415 Dhrystone2.1 825 Fibonacci 830 415 While(1) 815 408 Reduced DS12712 Rev 2 IDD (Run) fHCLK = fHSE up to 48 MHZ Range 1 Supply current in included, bypass mode = 150 f PLL ON above 48 MHz all HCLK Run mode MHz peripherals disable While(1) (1) Reduced code Range 1 Boost mode fHCLK= 170 MHz Reduced IDD (LPRun) SYSCLK source is HSI16 Supply current in FHCLK = 2MHz Low-power run all peripherals disable 1. Reduced code used for characterization results provided in Table 21, Table 23, Table 25. code(1) mA mA mA µA 102 117 124 413 Unit µA/MHz µA/MHz µA/MHz µA/MHz 101/223 Electrical characteristics Single bank mode code(1) Unit Single bank mode fHCLK Voltage scaling Range2 fHCLK=26 M Hz TYP STM32G473xB STM32G473xC STM32G473xE Table 29. Typical current consumption in Run and Low-power run modes, with different codes running from SRAM2 Conditions Symbol Parameter - TYP Voltage scaling Range2 fHCLK=26 M Hz fHCLK Single bank mode Coremark 2.85 110 Dhrystone2.1 2.75 Fibonacci 2.95 113 2.60 100 18.00 120 Coremark 18.50 123 Dhrystone2.1 18.00 Fibonacci 19.00 127 While(1) 17.00 113 Reduced code(1) 22.00 129 Coremark 22.50 132 Dhrystone2.1 22.00 Fibonacci 23.50 138 20.50 121 900 450 Coremark 850 425 Dhrystone2.1 870 Fibonacci 850 425 While(1) 810 405 DS12712 Rev 2 While(1) (1) Reduced code IDD (LPRun) SYSCLK source is HSI16 Supply current in FHCLK = 2MHz Low-power run all peripherals disable mA mA mA µA 106 120 129 435 Unit µA/MHz µA/MHz µA/MHz µA/MHz STM32G473xB STM32G473xC STM32G473xE 106 Reduced code Range 1 Boost mode fHCLK= 170 MHz Single bank mode 2.75 (1) IDD (Run) Unit Reduced code(1) While(1) fHCLK = fHSE up to 48 MHZ Range 1 Supply current in included, bypass mode = 150 f PLL ON above 48 MHz all HCLK Run mode MHz peripherals disable TYP Electrical characteristics 102/223 Table 30. Typical current consumption in Run and Low-power run modes, with different codes running from CCMSRAM Table 31. Current consumption in Sleep and Low-power sleep mode Flash ON Typ Condition Symbol Parameter - Voltage scaling Range 2 DS12712 Rev 2 IDD (Sleep) Supply current in Sleep mode fHCLK Unit 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 26 MHz 0.98 1.1 1.75 2.4 3.75 1.40 2.00 4.00 5.90 9.80 16 MHz 0.67 0.835 1.45 2.15 3.5 1.10 1.60 3.60 5.50 9.40 8 MHz 0.44 0.605 1.25 2 3.35 0.71 1.30 3.30 5.20 9.00 4 MHz 0.33 0.5 1.1 1.9 3.25 0.55 1.20 3.10 5.00 8.90 2 MHz 0.27 0.445 1.05 1.85 3.2 0.46 1.10 3.00 4.90 8.80 1 MHz 0.24 0.415 1.05 1.8 3.15 0.41 0.97 2.90 4.80 8.70 100 KHz 0.21 0.385 0.995 1.8 3.1 0.37 0.93 2.90 4.80 8.70 6.60 6.95 7.8 8.9 10.5 8.60 8.80 11.00 14.00 19.00 5.50 5.8 6.55 7.55 9.25 6.80 7.30 9.00 12.00 17.00 4.50 4.75 5.5 6.55 8.2 5.80 6.20 8.00 11.00 16.00 80 MHz 3.15 3.45 4.2 5.15 6.8 4.50 4.20 6.70 9.10 14.00 72 MHz 2.85 3.15 3.9 4.9 6.55 3.90 3.90 6.40 8.80 14.00 64 MHz 2.60 2.9 3.65 4.6 6.3 3.60 3.60 6.10 8.60 14.00 48 MHz 1.90 2.2 3 3.65 5.3 3.00 3.10 5.60 8.00 13.00 32 MHz 1.40 1.65 2.4 3.2 4.85 1.90 2.70 5.20 7.60 13.00 24 MHz 1.10 1.35 2.1 3 4.65 1.60 2.40 4.90 7.30 13.00 16 MHz 0.83 1.1 1.85 2.75 4.35 1.30 2.10 4.60 7.00 12.00 Range 1 fHCLK = fHSE Boost 170 MHz up to 48 MHz mode included, bypass mode PLL ON 150 MHz above 48 MHz all peripherals disable 120 MHz mA 103/223 Electrical characteristics Range 1 Max STM32G473xB STM32G473xC STM32G473xE 1. Reduced code used for characterization results provided in Table 21, Table 23, Table 25. Condition Symbol Parameter Typ Voltage scaling - SYSCLK source is HSE in bypass mode all peripherals disable Supply current IDD (LPRun) in Low-power run mode SYSCLK source is HSI16 all peripherals disable fHCLK Max Unit DS12712 Rev 2 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 2 MHz 205 430 1150 2050 3600 1700 2700 3500 5700 11000 1 MHz 165 400 1100 2000 3550 940 2200 3400 5700 11000 250 KHz 145 370 1100 2000 3550 370 1100 3400 5700 11000 62.5 KHz 140 365 1050 2000 3550 360 1100 3400 5600 11000 2 MHz 700 925 1650 2550 4100 1100 1900 4300 6300 11000 1 MHz 710 925 1600 2550 4100 1100 1800 4300 6300 11000 250 KHz 670 910 1600 2500 4050 1100 1800 4200 6300 11000 62.5 KHz 685 910 1600 2500 4050 1100 1800 4000 6300 11000 μA Electrical characteristics 104/223 Table 31. Current consumption in Sleep and Low-power sleep mode Flash ON (continued) μA Table 32. Current consumption in low-power sleep modes, Flash in power-down Symbol Parameter - Voltage scaling SYSCLK source is HSE in bypass mode all peripherals disable IDD (LPSleep) Supply current in low-power sleep mode SYSCLK source is HSI16 all peripherals disable Typ fHCLK Max Unit 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 2 MHz 210 385 1150 2050 3550 460 1200 3500 5700 11000 1 MHz 150 360 1100 2000 3550 410 1100 3400 5600 11000 250 KHz 120 330 1050 2000 3500 370 1100 3400 5600 11000 62.5 KHz 110 330 1050 1950 3500 360 1100 3300 5600 10000 2 MHz 675 900 1600 2500 4050 1100 1800 4200 6400 11000 1 MHz 695 890 1600 2500 4050 1100 1800 4100 6300 11000 250 KHz 640 885 1600 2500 4050 1100 1800 4100 6300 11000 62.5 KHz 690 880 1600 2500 4050 990 1600 3500 5400 9300 μA STM32G473xB STM32G473xC STM32G473xE Condition Symbol Conditions Parameter 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 1.8 V 80 250 830 1550 2850 230 770 2400 4600 6000 2.4 V 80 250 835 1600 2850 230 780 2400 4600 8400 3.0 V 80.5 255 840 1600 2900 230 780 2400 4600 8400 3.6 V 81.5 255 845 1600 2900 240 780 2400 4600 8400 1.8 V 80.5 255 830 1550 2850 230 770 2400 4600 11000 2.4 V 81 255 835 1600 2850 230 770 2400 4600 11000 3.0 V 81.5 255 835 1600 2850 230 780 2400 4600 11000 3.6 V 82 255 845 1600 2900 240 780 2400 4600 1.8 V 80 255 830 1550 2850 - - - - - 2.4 V 80.5 255 830 1600 2850 - - - - - 3.0 V 81.5 255 835 1600 2900 - - - - - 3.6 V 83 260 845 1600 2900 - - - - - 1.8 V 83.5 220 655 1300 - - - - - - 2.4 V 84 220 660 1300 - - - - - - 3.0 V 84.5 220 660 1300 - - - - - - 3.6 V 87 220 660 1300 - - - - - - Wakeup clock is HSI6, voltage Range 1 3.0 V 1.73 - - - - - - - - - Wakeup clock is HSI6 = 4 MHz, (HPRE = 4), voltage Range 2 3.0 V RTC clocked by LSI DS12712 Rev 2 Supply current in Stop 1 mode, RTC RTC clocked by LSE bypassed at 32768 Hz enabled RTC clocked by LSE quartz in low drive mode at 32768 Hz IDD (wakeu p from Stop 1 Supply current during wakeup from Stop 1 mode 11000 (2) µA mA 1.29 1. Guaranteed by characterization results, unless otherwise specified. 105/223 2. Guaranteed by test in production Unit - - - - - - - - - Electrical characteristics VDD - Supply current IDD in Stop 1 RTC disabled (Stop 1) mode, RTC disabled IDD (Stop 1 with RTC) MAX(1) TYP STM32G473xB STM32G473xC STM32G473xE Table 33. Current consumption in Stop 1 mode Conditions Symbol Parameter - IDD(Stop 0) Supply current in Stop 0 mode, RTC disabled MAX(1) TYP Unit VDD 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 1.8 V 190 380 980 1750 3100 350 920 2700 5000 12000 2.4 V 190 380 985 1750 3100 350 930 2700 5100 12000 3V 190 380 985 1750 3100 350 940 2700 5100 12000 3.6 V 190 380 985 1750 3100 360 940 2700 5200 µA 12000 Electrical characteristics 106/223 Table 34. Current consumption in Stop 0 mode (2) 1. Guaranteed by characterization results, unless otherwise specified. 2. Guaranteed by test in production. Table 35. Current consumption in Standby mode Symbol Parameter - IDD (Standby) Supply current in Standby mode (backup registers retained), RTC disabled No independent watchdog With independent watchdog MAX(1) TYP Unit VDD 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 1.8 V 100 275 1350 3450 8450 270 1800 4700 8800 24000 2.4 V 110 325 1600 4100 10000 290 2100 5200 11000 28000 3V 130 385 1900 4850 12000 350 2300 6200 12000 32000 3.6 V 180 530 2400 6050 14500 670 2400 7200 14000 1.8 V 300 - - - - - - - - - 2.4 V 365 - - - - - - - - - 3V 435 - - - - - - - - - 3.6 V 545 - - - - - - - - - 38000 (2) nA STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 Conditions Conditions Symbol Parameter RTC clocked by LSI, no independent watchdog Supply current in Standby mode (backup registers (Standby with retained), RTC) RTC enabled IDD RTC clocked by LSI, with independent watchdog DS12712 Rev 2 RTC clocked by LSE bypassed at 32768 Hz RTC clocked by LSE quartz(3) in low drive mode (SRAM2)(4) Supply current to be added in Standby mode when SRAM2 is retained Unit VDD 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 1.8 V 540 725 1800 3850 8850 770 1900 4900 9300 25000 2.4 V 700 920 2150 4650 10500 960 3900 5800 11000 29000 3V 885 1150 2650 5550 12500 1300 4500 7000 13000 33000 3.6 V 1100 1450 3350 7000 15500 1600 5100 8200 15000 39000 1.8 V 580 - - - - - - - - - 2.4 V 760 - - - - - - - - - 3V 960 - - - - - - - - - 3.6 V 1200 - - - - - - - - - 1.8 V 410 580 1600 3650 8600 - - - - - 2.4 V 545 750 1950 4450 10500 - - - - - 3V 830 1150 2750 5800 13000 - - - - - 3.6 V 2200 3050 5550 9550 18000 - - - - - 1.8 V 370 570 1350 3150 7100 - - - - - 2.4 V 495 715 1650 3800 8350 - - - - - 3V 655 915 2100 4550 9850 - - - - - 3.6 V 875 1350 2800 5750 12000 - - - - - 1.8 V 300 825 2950 6300 12550 - - - - - 2.4 V 305 875 2900 6400 12500 - - - - - 3V 305 865 2950 6150 12500 - - - - - 3.6 V 310 870 3000 6450 13000 - - - - - nA nA nA 107/223 Electrical characteristics IDD MAX(1) TYP STM32G473xB STM32G473xC STM32G473xE Table 35. Current consumption in Standby mode (continued) Conditions Symbol Parameter - Unit VDD 25°C 55°C 85°C 3V 2.46 - - Wakeup Supply current during wakeup clock is from Standby) from Standby mode HSI16 = 16 MHz(5) IDD (wakeup MAX(1) TYP 105°C 125°C 25°C 55°C 85°C 105°C - - - - - - 125°C - mA 1. Guaranteed by characterization results, unless otherwise specified. Electrical characteristics 108/223 Table 35. Current consumption in Standby mode (continued) 2. Guaranteed by test in production 3. Based on characterization done with a 32.768 kHz crystal (MC306-G-06Q-32.768, manufacturer JFVNY) with two 6.8 pF loading capacitors. 4. The supply current in Standby with SRAM2 mode is: IDD_ALL(Standby) + IDD_ALL(SRAM2). The supply current in Standby with RTC with SRAM2 mode is: IIDD_ALL(Standby + RTC) + IDD_ALL(SRAM2). 5. Wakeup with code execution from Flash. Average value given for a typical wakeup time as specified in Table 39: Low-power mode wakeup timings. DS12712 Rev 2 Table 36. Current consumption in Shutdown mode Conditions Symbol Parameter IDD (Shutdown) Supply current in Shutdown mode (backup registers retained) RTC disabled - Unit VDD 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 1.8 V 19 140 885 2500 6600 160 390 2100 6700 21000 2.4 V 28 180 1050 2950 7800 190 510 2400 7900 24000 3V 43 230 1300 3600 9300 220 580 2900 9100 27000 3.6 V 87 360 1750 4700 12000 300 750 3500 11000 32000 nA STM32G473xB STM32G473xC STM32G473xE - MAX(1) TYP Conditions Symbol Parameter Supply current in Shutdown IDD mode (backup (Shutdown with registers RTC) retained) RTC enabled DS12712 Rev 2 IDD(wakeup from Shutdown) Supply current during wakeup from Shutdown mode MAX(1) TYP Unit - VDD 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C RTC clocked by LSE bypassed at 32768 Hz 1.8 V 330 445 1150 2700 6800 - - - - - 2.4 V 460 605 1450 3350 8150 - - - - - 3V 745 1000 2200 4550 10500 - - - - - 3.6 V 2100 2850 4900 8150 15500 - - - - - RTC clocked by LSE quartz(2) in low drive mode 1.8 V 285 450 1050 2500 - - - - - - 2.4 V 410 585 1300 3050 - - - - - - 3V 565 770 1750 3750 - - - - - - 3.6 V 780 1200 2400 4850 - - - - - - 3V 1.6 - - - - - - - - - Wakeup clock is HSI16 = 16 MHz(3) nA STM32G473xB STM32G473xC STM32G473xE Table 36. Current consumption in Shutdown mode (continued) mA 1. Guaranteed by characterization results, unless otherwise specified. 2. Based on characterization done with a 32.768 kHz crystal (MC306-G-06Q-32.768, manufacturer JFVNY) with two 6.8 pF loading capacitors. 3. Wakeup with code execution from Flash. Average value given for a typical wakeup time as specified in Table 39: Low-power mode wakeup timings. Electrical characteristics 109/223 Conditions Symbol Parameter - RTC disabled IDD(VBAT) Backup domain supply current RTC enabled and clocked by LSE bypassed at 32768 Hz Unit VBAT 25°C 55°C 85°C 105°C 125°C 25°C 55°C 85°C 105°C 125°C 1.8 V 4 17 92 245 600 - - - - - 2.4 V 5 20 105 280 690 - - - - - 3V 6 24 125 330 805 - - - - - 3.6 V 16 54 260 675 1650 - - - - - 1.8 V 310 315 350 470 - - - - - - 2.4 V 435 440 500 665 - - - - - - 3V 720 815 1050 1350 - - - - - - 3.6 V 2150 2600 3400 4050 - - - - - - 1.8 V 270 345 455 715 835 - - - - - 2.4 V 385 455 650 910 910 - - - - - 3V 525 600 910 1150 1000 - - - - - 3.6 V 710 995 1250 1700 1900 - - - - - 1. Guaranteed by characterization results, unless otherwise specified. 2. Based on characterization done with a 32.768 kHz crystal (MC306-G-06Q-32.768, manufacturer JFVNY) with two 6.8 pF loading capacitors. nA STM32G473xB STM32G473xC STM32G473xE DS12712 Rev 2 RTC enabled and clocked by LSE quartz(2) MAX(1) TYP Electrical characteristics 110/223 Table 37. Current consumption in VBAT mode STM32G473xB STM32G473xC STM32G473xE Electrical characteristics IO system current consumption The current consumption of the I/O system has two components: static and dynamic. I/O static current consumption All the I/Os used as inputs with pull-up generate current consumption when the pin is externally held low. The value of this current consumption can be simply computed by using the pull-up/pull-down resistors values given in Table 57: I/O static characteristics. For the output pins, any external pull-down or external load must also be considered to estimate the current consumption. Additional I/O current consumption is due to I/Os configured as inputs if an intermediate voltage level is externally applied. This current consumption is caused by the input Schmitt trigger circuits used to discriminate the input value. Unless this specific configuration is required by the application, this supply current consumption can be avoided by configuring these I/Os in analog mode. This is notably the case of ADC, OPAMP, COMP input pins which should be configured as analog inputs. Caution: Any floating input pin can also settle to an intermediate voltage level or switch inadvertently, as a result of external electromagnetic noise. To avoid current consumption related to floating pins, they must either be configured in analog mode, or forced internally to a definite digital value. This is done either by using pull-up/down resistors or by configuring the pins in output mode. I/O dynamic current consumption In addition to the internal peripheral current consumption measured previously (see Table 39: Low-power mode wakeup timings), the I/Os used by an application also contribute to the current consumption. When an I/O pin switches, it uses the current from the I/O supply voltage to supply the I/O pin circuitry and to charge/discharge the capacitive load (internal or external) connected to the pin: I SW = V DDIOx × f SW × C where ISW is the current sunk by a switching I/O to charge/discharge the capacitive load VDD is the I/O supply voltage fSW is the I/O switching frequency C is the total capacitance seen by the I/O pin: C = CINT+ CEXT + CS CS is the PCB board capacitance including the pad pin. The test pin is configured in push-pull output mode and is toggled by software at a fixed frequency. DS12712 Rev 2 111/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE On-chip peripheral current consumption The current consumption of the on-chip peripherals is given in Table 39. The MCU is placed under the following conditions: • All I/O pins are in Analog mode • The given value is calculated by measuring the difference of the current consumptions: – when the peripheral is clocked on – when the peripheral is clocked off • Ambient operating temperature and supply voltage conditions summarized in Table 14: Voltage characteristics • The power consumption of the digital part of the on-chip peripherals is given in Table 39. The power consumption of the analog part of the peripherals (where applicable) is indicated in each related section of the datasheet. Table 38. Peripheral current consumption Bus - AHB1 112/223 Peripheral Range 1 Boost mode Range 1 Low-power Normal Range 2 run and mode sleep Bus Matrix 6.12 5.69 4.70 6.11 AHB1 to APB1 bridge 0.26 0.25 0.22 0.03 AHB1 to APB2 bridge 0.39 0.37 0.32 0.03 FSMC 10.21 9.52 7.87 10.28 QUADSPI 3.51 3.27 2.69 3.51 CORDIC 1.28 1.19 0.98 0.78 CRC 0.74 0.68 0.57 0.63 DMA 1 2.83 2.64 2.17 2.75 DMA 2 3.11 2.90 2.39 2.43 DMAMUX 6.71 6.26 5.17 6.68 SRAM1 0.58 0.54 0.44 0.54 FLASH 6.46 6.01 4.95 6.15 FMAC 4.59 4.29 3.57 3.83 DS12712 Rev 2 Unit µA/MHz µA/MHz STM32G473xB STM32G473xC STM32G473xE Electrical characteristics Table 38. Peripheral current consumption (continued) Bus AHB2 Peripheral Range 1 Boost mode Range 1 Low-power Normal Range 2 run and mode sleep ADC1/ADC2 6.24 5.80 4.77 5.88 ADC3/ADC4/ADC5 8.21 7.64 6.29 8.14 DAC1 4.70 4.38 3.63 4.40 DAC2 2.51 2.34 1.93 2.14 DAC3 4.62 4.31 3.57 4.15 DAC4 4.31 4.01 3.32 3.90 GPIOA 0.09 0.08 0.07 0.14 GPIOB 0.10 0.09 0.07 0.03 GPIOC 0.10 0.09 0.08 0.03 GPIOD 0.06 0.06 0.03 0.05 GPIOE 0.23 0.22 0.18 0.10 GPIOF 0.07 0.07 0.05 0.02 GPIOG 0.25 0.24 0.20 0.24 SRAM2 0.39 0.37 0.29 0.28 CCM SRAM 0.29 0.27 0.23 0.22 RNG 2.09 1.95 NA NA DS12712 Rev 2 Unit µA/MHz 113/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE Table 38. Peripheral current consumption (continued) Bus APB1 114/223 Peripheral Range 1 Boost mode Range 1 Low-power Normal Range 2 run and mode sleep CRS 0.74 0.68 0.57 0.51 FDCAN1/FDCAN2/FDCAN3 22.20 20.68 17.10 21.15 I2C1 1.29 1.20 0.99 1.28 I2C2 1.29 1.20 0.99 1.28 I2C3 1.25 1.17 0.96 1.56 I2C4 1.25 1.16 0.96 1.97 LPTIM1 1.11 1.03 0.85 1.42 LPUART1 1.91 1.78 1.47 2.03 PWR 0.71 0.65 0.53 0.53 RTC 2.64 2.46 2.07 3.26 SPI2/I2S2 4.05 3.77 3.11 4.16 SPI3/I2S3 4.08 3.81 3.13 4.49 TIM2 7.97 7.42 6.16 8.29 TIM3 6.37 5.93 4.92 6.81 TIM4 6.43 5.98 4.97 6.50 TIM5 8.28 7.71 6.38 8.11 TIM6 1.22 1.13 0.94 1.45 TIM7 1.28 1.18 0.98 1.56 UART4 2.51 2.33 1.92 3.14 UART5 2.79 2.60 2.14 3.34 USART2 2.75 2.56 2.12 3.11 USART3 2.71 2.52 2.08 2.47 USB 0.46 0.43 NA NA UCPD 2.46 2.28 1.89 NA WWDG 0.42 0.39 0.31 0.42 DS12712 Rev 2 Unit µA/MHz STM32G473xB STM32G473xC STM32G473xE Electrical characteristics Table 38. Peripheral current consumption (continued) Bus APB2 Range 1 Boost mode Peripheral Range 1 Low-power Normal Range 2 run and mode sleep SAI1 2.67 2.48 2.05 2.64 SPI1 1.99 1.86 1.54 2.02 SPI4 1.99 1.86 1.54 2.02 TIM1 10.85 10.13 8.40 9.93 TIM8 10.67 9.96 8.25 9.82 TIM15 4.81 4.48 3.71 4.57 TIM16 3.71 3.45 2.88 3.45 TIM17 3.66 3.41 2.83 3.81 TIM20 10.71 9.99 8.29 10.00 USART1 2.49 2.31 1.91 2.49 SYSCFG/COMP/OPAMP/VREFBUF 1.63 1.52 1.25 0.91 DS12712 Rev 2 Unit µA/MHz 115/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE Table 38. Peripheral current consumption (continued) Bus Independent clock domain All 116/223 Range 1 Boost mode Peripheral Range 1 Low-power Normal Range 2 run and mode sleep ADC1/ ADC2 independent clock domain 0.72 0.67 0.53 0.63 ADC3/ ADC4/ ADC5 independent clock domain 0.67 0.62 0.50 0.22 FDCAN1/ FDCAN2/ FDCAN3 independent clock domain 11.62 10.84 8.95 10.24 I2C1 independent clock domain 4.03 3.76 3.12 4.15 I2C2 independent clock domain 3.78 3.52 2.93 3.23 I2C3 independent clock domain 2.72 2.55 2.11 2.65 I2C4 independent clock domain 3.95 3.67 3.04 2.81 I2S2 independent clock domain 1.49 1.40 1.15 1.63 I2S3 independent clock domain 1.52 1.43 1.16 2.15 LPTIM1 independent clock domain 4.00 3.71 3.08 3.57 LPUART1 independent clock domain 4.43 4.13 3.45 4.02 QUADSPI independent clock domain 0.54 0.51 0.44 0.75 RNG independent clock domain 0.83 0.87 NA NA USB independent clock domain 1.10 1.17 NA NA SAI1 independent clock domain 3.36 3.14 2.58 3.25 UART4 independent clock domain 6.60 6.17 5.14 6.02 UART5 independent clock domain 6.60 6.16 5.12 6.12 USART1 independent clock domain 7.62 7.12 5.89 6.90 USART2 independent clock domain 7.37 6.86 5.70 6.72 USART3 independent clock domain 7.98 7.44 6.17 8.21 369.00 316.04 266.18 325.00 - DS12712 Rev 2 Unit µA/MHz µA/MHz STM32G473xB STM32G473xC STM32G473xE 5.3.6 Electrical characteristics Wakeup time from low-power modes and voltage scaling transition times The wakeup times given in Table 39 are the latency between the event and the execution of the first user instruction. The device goes in low-power mode after the WFE (Wait For Event) instruction. Table 39. Low-power mode wakeup timings(1) Symbol tWUSLEEP Parameter Conditions Typ Max - 11 12 - 10 11 Wakeup time from Sleep mode to Run mode Wakeup time from LowtWULPSLEEP power sleep mode to Lowpower run mode tWUSTOP0 tWUSTOP1 Wake up time from Stop 0 mode to Run mode in Flash Range 1 Wakeup clock HSI16 = 16 MHz 5.8 6 Range 2 Wakeup clock HSI16 = 16 MHz 18.4 19.1 Wake up time from Stop 0 mode to Run mode in SRAM1 Range 1 Wakeup clock HSI16 = 16 MHz 2.8 3 Range 2 Wakeup clock HSI16 = 16 MHz 2.9 3 Wake up time from Stop 1 mode to Run in Flash Range 1 Wakeup clock HSI16 = 16 MHz 9.5 9.8 Range 2 Wakeup clock HSI16 = 16 MHz 21.9 22.7 Wake up time from Stop 1 mode to Run mode in SRAM1 Range 1 Wakeup clock HSI16 = 16 MHz 6.6 6.9 Range 2 Wakeup clock HSI16 = 16 MHz 6.4 6.6 26.1 27.1 Wake up time from Stop 1 mode to Low-power run mode in Flash Wake up time from Stop 1 mode to Low-power run mode in SRAM1 tWUSTBY tWUSTBY SRAM2 tWUSHDN tWULPRUN Regulator in Wakeup clock low-power HSI16 = 16 MHz, mode (LPR=1 with HPRE = 8 in PWR_CR1) 14.4 15 Range 1 Wakeup clock HSI16 = 16 MHz 29.7 33.8 Wakeup time from Standby with SRAM2 to Run mode Range 1 Wakeup clock HSI16 = 16 MHz 29.7 33.5 Wakeup time from Shutdown mode to Run mode Range 1 Wakeup clock HSI16 = 16 MHz 267.9 274.6 Wakeup clock HSI16 = 16 MHz with HPRE = 8 Nb of CPU cycles µs Wakeup time from Standby mode to Run mode Wakeup time from Lowpower run mode to Run mode(2) Unit 5 7 1. Guaranteed by characterization results. 2. Time until REGLPF flag is cleared in PWR_SR2. DS12712 Rev 2 117/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE Table 40. Regulator modes transition times(1) Symbol tVOST Parameter Conditions Regulator transition time from Range 2 to Range 1 or Range 1 to Range 2(2) Typ Max Unit 20 40 μs Typ Max Unit Stop 0 mode - 1.7 Stop 1 mode - 8.5 Wakeup clock HSI16 = 16 MHz with HPRE = 8 1. Guaranteed by characterization results. 2. Time until VOSF flag is cleared in PWR_SR2. Table 41. Wakeup time using USART/LPUART(1) Symbol tWUUSART tWULPUART Parameter Conditions Wakeup time needed to calculate the maximum USART/LPUART baudrate allowing to wakeup up from stop mode when USART/LPUART clock source is HSI16 μs 1. Guaranteed by design. 5.3.7 External clock source characteristics High-speed external user clock generated from an external source In bypass mode the HSE oscillator is switched off and the input pin is a standard GPIO. The external clock signal has to respect the I/O characteristics in Section 5.3.14. However, the recommended clock input waveform is shown in Figure 18: High-speed external clock source AC timing diagram. Table 42. High-speed external user clock characteristics(1) Symbol fHSE_ext Parameter User external clock source frequency Conditions Min Typ Max Voltage scaling Range 1 - 8 48 Voltage scaling Range 2 - 8 26 OSC_IN input pin high level voltage - 0.7 VDD - VDD VHSEL OSC_IN input pin low level voltage - VSS - 0.3 VDD Voltage scaling Range 1 7 - - Voltage scaling Range 2 18 - - V OSC_IN high or low time 1. Guaranteed by design. 118/223 MHz VHSEH tw(HSEH) tw(HSEL) Unit DS12712 Rev 2 ns STM32G473xB STM32G473xC STM32G473xE Electrical characteristics Figure 18. High-speed external clock source AC timing diagram tw(HSEH) VHSEH 90% VHSEL 10% tr(HSE) tf(HSE) t tw(HSEL) THSE MS19214V2 Low-speed external user clock generated from an external source In bypass mode the LSE oscillator is switched off and the input pin is a standard GPIO. The external clock signal has to respect the I/O characteristics in Section 5.3.14. However, the recommended clock input waveform is shown in Figure 19. Table 43. Low-speed external user clock characteristics(1) Symbol Parameter Conditions Min Typ Max Unit kHz fLSE_ext User external clock source frequency - - 32.768 1000 VLSEH OSC32_IN input pin high level voltage - 0.7 VDD - VDD VLSEL OSC32_IN input pin low level voltage - VSS - 0.3 VDD - 250 - - V tw(LSEH) OSC32_IN high or low time tw(LSEL) ns 1. Guaranteed by design. Figure 19. Low-speed external clock source AC timing diagram tw(LSEH) VLSEH 90% VLSEL 10% tr(LSE) tf(LSE) t tw(LSEL) TLSE MS19215V2 DS12712 Rev 2 119/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE High-speed external clock generated from a crystal/ceramic resonator The high-speed external (HSE) clock can be supplied with a 4 to 48 MHz crystal/ceramic resonator oscillator. All the information given in this paragraph are based on design simulation results obtained with typical external components specified in Table 44. In the application, the resonator and the load capacitors have to be placed as close as possible to the oscillator pins in order to minimize output distortion and startup stabilization time. Refer to the crystal resonator manufacturer for more details on the resonator characteristics (frequency, package, accuracy). Table 44. HSE oscillator characteristics(1) Symbol fOSC_IN RF Conditions(2) Min Typ Max Unit Oscillator frequency - 4 8 48 MHz Feedback resistor - - 200 - kΩ - - 5.5 VDD = 3 V, Rm = 30 Ω, CL = 10 pF@8 MHz - 0.44 - VDD = 3 V, Rm = 45 Ω, CL = 10 pF@8 MHz - 0.45 - VDD = 3 V, Rm = 30 Ω, CL = 5 pF@48 MHz - 0.68 - VDD = 3 V, Rm = 30 Ω, CL = 10 pF@48 MHz - 0.94 - VDD = 3 V, Rm = 30 Ω, CL = 20 pF@48 MHz - 1.77 - Startup - - 1.5 mA/V VDD is stabilized - 2 - ms Parameter During startup IDD(HSE) Gm HSE current consumption Maximum critical crystal transconductance tSU(HSE)(4) Startup time (3) mA 1. Guaranteed by design. 2. Resonator characteristics given by the crystal/ceramic resonator manufacturer. 3. This consumption level occurs during the first 2/3 of the tSU(HSE) startup time 4. tSU(HSE) is the startup time measured from the moment it is enabled (by software) to a stabilized 8 MHz oscillation is reached. This value is measured for a standard crystal resonator and it can vary significantly with the crystal manufacturer For CL1 and CL2, it is recommended to use high-quality external ceramic capacitors in the 5 pF to 20 pF range (typ.), designed for high-frequency applications, and selected to match the requirements of the crystal or resonator (see Figure 20). CL1 and CL2 are usually the same size. The crystal manufacturer typically specifies a load capacitance which is the series combination of CL1 and CL2. PCB and MCU pin capacitance must be included (10 pF can be used as a rough estimate of the combined pin and board capacitance) when sizing CL1 and CL2. 120/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Note: Electrical characteristics For information on selecting the crystal, refer to the application note AN2867 “Oscillator design guide for ST microcontrollers” available from the ST website www.st.com. Figure 20. Typical application with an 8 MHz crystal Resonator with integrated capacitors CL1 OSC_IN 8 MHz resonator CL2 REXT (1) fHSE RF Bias controlled gain OSC_OUT MS19876V1 1. REXT value depends on the crystal characteristics. Low-speed external clock generated from a crystal resonator The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal resonator oscillator. All the information given in this paragraph are based on design simulation results obtained with typical external components specified in Table 45. In the application, the resonator and the load capacitors have to be placed as close as possible to the oscillator pins in order to minimize output distortion and startup stabilization time. Refer to the crystal resonator manufacturer for more details on the resonator characteristics (frequency, package, accuracy). DS12712 Rev 2 121/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE Table 45. LSE oscillator characteristics (fLSE = 32.768 kHz)(1) Symbol IDD(LSE) Conditions(2) Parameter LSE current consumption Maximum critical crystal Gmcritmax gm tSU(LSE)(3) Startup time Min Typ Max LSEDRV[1:0] = 00 Low drive capability - 250 - LSEDRV[1:0] = 01 Medium low drive capability - 315 - LSEDRV[1:0] = 10 Medium high drive capability - 500 - LSEDRV[1:0] = 11 High drive capability - 630 - LSEDRV[1:0] = 00 Low drive capability - - 0.5 LSEDRV[1:0] = 01 Medium low drive capability - - 0.75 LSEDRV[1:0] = 10 Medium high drive capability - - 1.7 LSEDRV[1:0] = 11 High drive capability - - 2.7 VDD is stabilized - 2 - Unit nA µA/V s 1. Guaranteed by design. 2. Refer to the note and caution paragraphs below the table, and to the application note AN2867 “Oscillator design guide for ST microcontrollers”. 3. Note: tSU(LSE) is the startup time measured from the moment it is enabled (by software) to a stabilized 32.768 kHz oscillation is reached. This value is measured for a standard crystal and it can vary significantly with the crystal manufacturer For information on selecting the crystal, refer to the application note AN2867 “Oscillator design guide for ST microcontrollers” available from the ST website www.st.com. Figure 21. Typical application with a 32.768 kHz crystal Resonator with integrated capacitors CL1 OSC32_IN fLSE Drive programmable amplifier 32.768 kHz resonator OSC32_OUT CL2 MS30253V2 Note: 122/223 An external resistor is not required between OSC32_IN and OSC32_OUT and it is forbidden to add one. DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE 5.3.8 Electrical characteristics Internal clock source characteristics The parameters given in Table 46 are derived from tests performed under ambient temperature and supply voltage conditions summarized in Table 17: General operating conditions. The provided curves are characterization results, not tested in production. High-speed internal (HSI16) RC oscillator Table 46. HSI16 oscillator characteristics(1) Symbol fHSI16 TRIM Parameter HSI16 Frequency HSI16 user trimming step Conditions Min Typ VDD=3.0 V, TA=30 °C 15.88 - Trimming code is not a multiple of 64 0.2 0.3 Trimming code is a multiple of 64 -4 -6 -8 45 - 55 % -1 - 1 % -2 - 1.5 % -0.1 - 0.05 % DuCy(HSI16)(2) Duty Cycle - Max Unit 16.08 MHz 0.4 % ∆Temp(HSI16) HSI16 oscillator frequency TA= 0 to 85 °C drift over temperature TA= -40 to 125 °C ∆VDD(HSI16) HSI16 oscillator frequency VDD=1.62 V to 3.6 V drift over VDD tsu(HSI16)(2) HSI16 oscillator start-up time - - 0.8 1.2 μs tstab(HSI16)(2) HSI16 oscillator stabilization time - - 3 5 μs IDD(HSI16)(2) HSI16 oscillator power consumption - - 155 190 μA 1. Guaranteed by characterization results. 2. Guaranteed by design. DS12712 Rev 2 123/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE Figure 22. HSI16 frequency versus temperature MHz 16.4 +2 % 16.3 +1.5 % 16.2 +1 % 16.1 16 15.9 -1 % 15.8 -1.5 % 15.7 -2 % 15.6 -40 -20 0 20 Mean 40 60 80 min 100 120 °C max MSv39299V2 High-speed internal 48 MHz (HSI48) RC oscillator Table 47. HSI48 oscillator characteristics(1) Symbol fHSI48 TRIM USER TRIM COVERAGE Parameter HSI48 Frequency Conditions VDD=3.0V, TA=30°C HSI48 user trimming step HSI48 user trimming coverage ±32 steps DuCy(HSI48) Duty Cycle - VDD = 3.0 V to 3.6 V, Accuracy of the HSI48 TA = –15 to 85 °C ACCHSI48_REL oscillator over temperature VDD = 1.65 V to 3.6 V, (factory calibrated) TA = –40 to 125 °C DVDD(HSI48) 124/223 HSI48 oscillator frequency VDD = 3 V to 3.6 V drift with VDD VDD = 1.65 V to 3.6 V Min Typ Max Unit - 48 - MHz - 0.11(2) 0.18(2) % ±3(3) ±3.5(3) - % 45(2) - 55(2) % - - ±3(3) - - ±4.5(3) - 0.025(3) 0.05(3) - 0.05(3) 0.1(3) % % tsu(HSI48) HSI48 oscillator start-up time - - 2.5(2) 6(2) μs IDD(HSI48) HSI48 oscillator power consumption - - 340(2) 380(2) μA DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Electrical characteristics Table 47. HSI48 oscillator characteristics(1) (continued) Symbol Parameter Conditions Min Typ Max Unit NT jitter Next transition jitter Accumulated jitter on 28 cycles(4) - - +/-0.15(2) - ns PT jitter Paired transition jitter Accumulated jitter on 56 cycles(4) - - +/-0.25(2) - ns 1. VDD = 3 V, TA = –40 to 125°C unless otherwise specified. 2. Guaranteed by design. 3. Guaranteed by characterization results. 4. Jitter measurement are performed without clock source activated in parallel. Figure 23. HSI48 frequency versus temperature % 6 4 2 0 -2 -4 -6 -50 -30 -10 10 30 50 Avg 70 90 min 110 130 °C max MSv40989V1 Low-speed internal (LSI) RC oscillator Table 48. LSI oscillator characteristics(1) Symbol fLSI tSU(LSI)(2) Parameter LSI Frequency Conditions Min Typ Max VDD = 3.0 V, TA = 30 °C 31.04 - 32.96 VDD = 1.62 to 3.6 V, TA = -40 to 125 °C 29.5 - 34 - 80 130 LSI oscillator start-up time DS12712 Rev 2 - Unit kHz μs 125/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE Table 48. LSI oscillator characteristics(1) (continued) Symbol Parameter tSTAB(LSI)(2) IDD(LSI)(2) Conditions Min Typ Max Unit LSI oscillator stabilization 5% of final frequency time - 125 180 μs LSI oscillator power consumption - 110 180 nA - 1. Guaranteed by characterization results. 2. Guaranteed by design. 5.3.9 PLL characteristics The parameters given in Table 49 are derived from tests performed under temperature and VDD supply voltage conditions summarized in Table 17: General operating conditions. Table 49. PLL characteristics(1) Symbol fPLL_IN Parameter Conditions Min Typ Max Unit PLL input clock(2) - 2.66 - 16 MHz PLL input clock duty cycle - 45 - 55 % Voltage scaling Range 1 Boost mode 2.0645 - 170 Voltage scaling Range 1 2.0645 - 150 Voltage scaling Range 2 2.0645 - 26 Voltage scaling Range 1 Boost mode 8 - 170 Voltage scaling Range 1 8 - 150 Voltage scaling Range 2 8 - 26 Voltage scaling Range 1 Boost mode 8 - 170 Voltage scaling Range 1 8 - 150 Voltage scaling Range 2 8 - 26 Voltage scaling Range 1 96 - 344 Voltage scaling Range 2 96 - 128 - - 15 40 - 28.6 - - 21.4 - VCO freq = 96 MHz - 200 260 VCO freq = 192 MHz - 300 380 VCO freq = 344 MHz - 520 650 fPLL_P_OUT PLL multiplier output clock P fPLL_Q_OUT PLL multiplier output clock Q fPLL_R_OUT PLL multiplier output clock R fVCO_OUT tLOCK Jitter IDD(PLL) PLL VCO output PLL lock time RMS cycle-to-cycle jitter RMS period jitter PLL power consumption on VDD(1) System clock 150 MHz 1. Guaranteed by design. 2. Take care of using the appropriate division factor M to obtain the specified PLL input clock values. 126/223 DS12712 Rev 2 MHz μs ±ps μA STM32G473xB STM32G473xC STM32G473xE 5.3.10 Electrical characteristics Flash memory characteristics Table 50. Flash memory characteristics(1) Symbol Parameter Conditions Typ Max Unit tprog 64-bit programming time - 81.7 83.35 µs tprog_row One row (32 double word) programming time Normal programming 2.61 2.7 Fast programming 1.91 1.95 tprog_page One page (2 Kbytes) programming time Normal programming 20.91 21.34 Fast programming 15.29 15.6 22.02 24.47 Normal programming 2.68 2.73 Fast programming 1.96 2 22.13 24.6 Write mode 3.5 - Erase mode 3.5 - Write mode 7 (for 6 µs) - Erase mode 7 (for 67 µs) - tERASE Page (2 Kbytes) erase time tprog_bank One bank (256 Kbyte) programming time tME IDD - Mass erase time (one or two banks) - Average consumption from VDD Maximum current (peak) ms s ms mA 1. Guaranteed by design. Table 51. Flash memory endurance and data retention Symbol NEND Parameter Endurance Conditions TA = -40 to +105 °C 1 kcycle(2) at TA = 85 °C 1 kcycle(2) at TA = 105 °C tRET Data retention 1 kcycle 10 (2) at TA = 125 °C kcycles(2) Min(1) Unit 10 kcycles 30 15 7 at TA = 55 °C 30 10 kcycles(2) at TA = 85 °C 15 10 kcycles(2) at TA = 105 °C 10 Years 1. Guaranteed by characterization results. 2. Cycling performed over the whole temperature range. DS12712 Rev 2 127/223 199 Electrical characteristics 5.3.11 STM32G473xB STM32G473xC STM32G473xE EMC characteristics Susceptibility tests are performed on a sample basis during device characterization. Functional EMS (electromagnetic susceptibility) While a simple application is executed on the device (toggling 2 LEDs through I/O ports). the device is stressed by two electromagnetic events until a failure occurs. The failure is indicated by the LEDs: • Electrostatic discharge (ESD) (positive and negative) is applied to all device pins until a functional disturbance occurs. This test is compliant with the IEC 61000-4-2 standard. • FTB: A Burst of Fast Transient voltage (positive and negative) is applied to VDD and VSS through a 100 pF capacitor, until a functional disturbance occurs. This test is compliant with the IEC 61000-4-4 standard. A device reset allows normal operations to be resumed. The test results are given in Table 52. They are based on the EMS levels and classes defined in application note AN1709. Table 52. EMS characteristics Conditions Level/ Class Symbol Parameter VFESD Voltage limits to be applied on any I/O pin to induce a functional disturbance VDD = 3.3 V, TA = +25 °C, fHCLK = 170 MHz, conforming to IEC 61000-4-2 3B VEFTB Fast transient voltage burst limits to be applied through 100 pF on VDD and VSS pins to induce a functional disturbance VDD = 3.3 V, TA = +25 °C, fHCLK = 170 MHz, conforming to IEC 61000-4-4 5A Designing hardened software to avoid noise problems EMC characterization and optimization are performed at component level with a typical application environment and simplified MCU software. It should be noted that good EMC performance is highly dependent on the user application and the software in particular. Therefore it is recommended that the user applies EMC software optimization and prequalification tests in relation with the EMC level requested for his application. Software recommendations The software flowchart must include the management of runaway conditions such as: • Corrupted program counter • Unexpected reset • Critical Data corruption (control registers...) Prequalification trials Most of the common failures (unexpected reset and program counter corruption) can be reproduced by manually forcing a low state on the NRST pin or the Oscillator pins for 1 second. 128/223 DS12712 Rev 2 STM32G473xB STM32G473xC STM32G473xE Electrical characteristics To complete these trials, ESD stress can be applied directly on the device, over the range of specification values. When unexpected behavior is detected, the software can be hardened to prevent unrecoverable errors occurring (see application note AN1015). Electromagnetic Interference (EMI) The electromagnetic field emitted by the device are monitored while a simple application is executed (toggling 2 LEDs through the I/O ports). This emission test is compliant with IEC 61967-2 standard which specifies the test board and the pin loading. Table 53. EMI characteristics Symbol SEMI Parameter Peak level Monitored frequency band Conditions Max vs. [fHSE/fHCLK] 0.1 MHz to 30 MHz 4 30 MHz to 130 MHz VDD = 3.6 V, TA = 25 °C, LQFP128 package 130 MHz to 1 GHz compliant with IEC 61967-2 1 GHz to 2 GHz 0 EMI Level 5.3.12 Unit 8 MHz / 170 MHz dBµV 16 11 3.5 - Electrical sensitivity characteristics Based on three different tests (ESD, LU) using specific measurement methods, the device is stressed in order to determine its performance in terms of electrical sensitivity. Electrostatic discharge (ESD) Electrostatic discharges (a positive then a negative pulse separated by 1 second) are applied to the pins of each sample according to each pin combination. The sample size depends on the number of supply pins in the device (3 parts × (n+1) supply pins). This test conforms to the ANSI/JEDEC standard. Table 54. ESD absolute maximum ratings Symbol VESD(HBM) Ratings Electrostatic discharge voltage (human body model) Conditions Class TA = +25 °C, conforming to ANSI/ESDA/JEDEC JS-001 LQFP100 and LQFP128 TA = +25 °C, conforming to Electrostatic discharge VESD(CDM) ANSI/ESDA/JEDEC JSLQFP80 voltage (charge device model) 002 Other packages Maximum Unit value(1) 2 2000 C1 250 TBD TBD C2a 500 V V 1. Guaranteed by characterization results. DS12712 Rev 2 129/223 199 Electrical characteristics STM32G473xB STM32G473xC STM32G473xE Static latch-up Two complementary static tests are required on three parts to assess the latch-up performance: • A supply overvoltage is applied to each power supply pin. • A current injection is applied to each input, output and configurable I/O pin. These tests are compliant with EIA/JESD 78E IC latch-up standard. Table 55. Electrical sensitivities Symbol LU 5.3.13 Parameter Static latch-up class Conditions Class TA = +125 °C conforming to JESD78E Class II level A I/O current injection characteristics As a general rule, current injection to the I/O pins, due to external voltage below VSS or above VDD (for standard, 3.3 V-capable I/O pins) should be avoided during normal product operation. However, in order to give an indication of the robustness of the microcontroller in cases when abnormal injection accidentally happens, susceptibility tests are performed on a sample basis during device characterization. Functional susceptibility to I/O current injection While a simple application is executed on the device, the device is stressed by injecting current into the I/O pins programmed in floating input mode. While current is injected into the I/O pin, one at a time, the device is checked for functional failures. The failure is indicated by an out of range parameter: ADC error above a certain limit (higher than 5 LSB TUE), out of conventional limits of induced leakage current on adjacent pins (out of the -5 µA/+0 µA range) or other functional failure (for example reset occurrence or oscillator frequency deviation). The characterization results are given in Table 56. Negative induced leakage current is caused by negative injection and positive induced leakage current is caused by positive injection. Table 56. I/O current injection susceptibility Functional susceptibility Symbol (1) IINJ Description Injected current on pin Unit Negative injection Positive injection All except TT_a, PF10, PB8-BOOT0, PC10 -5 NA PF10, PB8-BOOT0, PC10 -0 NA TT_a pins -5 0 1. Guaranteed by characterization. 130/223 DS12712 Rev 2 mA STM32G473xB STM32G473xC STM32G473xE 5.3.14 Electrical characteristics I/O port characteristics General input/output characteristics Unless otherwise specified, the parameters given in Table 57 are derived from tests performed under the conditions summarized in Table 17: General operating conditions. All I/Os are designed as CMOS- and TTL-compliant. Table 57. I/O static characteristics Symbol Parameter I/O input VIL(1)(2) low level voltage I/O input VIH(1)(2) high level voltage VHYS(3) Input hysteresis Conditions All except FT_c FT_c Min Typ 1.62 V