STLUX385

STLUX385 Digital controller for lighting and power supply applications with 6 programmable PWM generators, 96 MHz PLL, DALI Datasheet − preliminary data Features ■ ■ ■ ■ ■ ■ Core – Max fCPU: 16 MHz – Advanced STM8 core with Harvard architecture and 3-stage pipeline – Extended instruction set TSSOP38 Memories – Flash and EEPROM with read while write (RWW) and error correction code (ECC) capability – Program memory: 32 Kbytes Flash; data retention 15 years at 85 °C after 10 kcycles at 25 °C – Data memory: 1 Kbyte true data EEPROM; data retention: 15 years at 85 °C after 100 kcycles at 85 °C – RAM: 2 Kbytes – I2C master/slave fast-slow speed rate – DALI ballast target device interface ■ ■ Clock management – Low power crystal resonator oscillator with external clock input – Internal, user-trimmable 16 MHz RC and low power 153.6 KHz RC oscillators – Internal 96 MHz PLL – Clock security system with clock monitor Analog to digital converter (ADC) – 10-bit, 8 multiplexed channels, sequencing functionality – Operational amplifier to extend dynamic range and resolution to 12-bit equivalent – Independent channel gain value configurations: x1.6 or x6.4 Analog comparators – 4 analog comparators with internal programmable reference voltage generated by 4 internal programmable 4-bit DACs – 1 analog comparator with additional external reference voltage – Comparator cycle time: 50 ns max – Repetitive conversion Interrupt management – Nested interrupt controller with 32 interrupt vectors – Three interrupt priority levels – Up to 12 external interrupt request lines on 2 vectors – Programmable NMI interrupt sources ■ Peripherals specific product – 6 SMEDs (state machine event driven) independent PWM programmable pulse signal generators Description Communication interfaces – UART asynchronous: sw flow-control operating mode February 2013 ■ I/Os – 12 I/Os multifunction signals – Highly robust I/O design, immune against current injection Operating temperature – -25 °C to 105 °C The STLUX385 is a digital controller for lighting and power supply applications featuring 6 programmable PWM generators, 96 MHz PLL, gain-programmable ADC and DALI interface. Doc ID 024169 Rev 2 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/10 www.st.com 10 Introduction 1 STLUX385 Introduction The core of the STLUX385 is the enhanced STM8 MCU, providing increased power processing while maintaining the advantages of the CISC architecture, a 24-bit linear addressing mode, 8-bit data bus and an optimized architecture for low power applications. The microcontroller includes an in-circuit debug module with a hardware interface (SWIM single wire) which allows non-intrusive application debugging and ultra-fast Flash programming code. The device has an embedded low power, low voltage, single voltage 32 Kbytes of non volatile program memory and true 1 Kbyte RWW data EEPROM with Error Correction Code (ECC). The STLUX385 microcontroller provides the following benefits: ● ● 2/10 Very high reliability and memory endurance – More than 15 years of operating life time – More than 15 years of data retention for program and Data Memory after cycling Flexible peripherals to form a powerful engine capable of driving all types of switch mode converters. It covers the topologies in the field of lighting and power management starting from simple buck converters for LED driving, boost for power factor correction, half-bridge resonant converters for dimmable fluorescent tube lamp ballasts, up to full bridge control in HID lamp ballasts – Fast analog comparators (50 ns max propagation delay) – 96 MHz PLL for high output signal resolution – Six independent SMED (state machine - event driven) units - programmable signal generators – Programmable connection box to interconnect SMEDs and other peripherals into complex timer blocks – 10-bit, 8 multiplexed channels ADC with operational amplifier to extend resolution to 12-bit – DALI hardware communication cell Doc ID 024169 Rev 2 STLUX385 2 Block diagram Block diagram Figure 1. Internal block diagram LSI int. Oscillator 153.6Khz Clock Controller HSI int. Oscillator 16Mhz PLL 96Mhz HSE ext. Oscillator 1-24Mhz POR Clock controller Power Management MVR MLVD LVR DLVD Reset control unit MSC (Miscellaneous reg.) GPIO0 P 0 I O M U X Reset Controller I2C 4Analog Comparators 4 DAC (4 bit) unit UART 6 Digital input lines SMED Con-Box DALI Smed0 Pwm0 Smed1 Pwm1 Address and Data Bus STM8 Core I n t. P 1 I O M U X Smed2 Pwm2 Smed3 Pwm3 B u s SWIM & DM (debug module) Smed4 Pwm4 Smed5 Pwm5 GPIO1 ITC (Interrupt Ctrl) 10 bit ADC + OA 8 channels AWU (Auto-wakeup) 2KB ROM BootRom WWDG (Window Watchdog) 32KB FLASH Program area IWDG (Indep. Watchdog) 1KB E PROM Data area System Timer 2KB RAM GIPD170120131832FSR Doc ID 024169 Rev 2 3/10 Pinout and pin description STLUX385 3 Pinout and pin description 3.1 Pinout Figure 2. TSSOP38 pinout GPIO1[0]/PWM[0] 1 38 ADCIN[0] DIGIN[0]/CCO_Clk 2 37 ADCIN[1] DIGIN1 3 36 ADCIN[2] GPIO1[1]/PWM[1] 4 35 ADCIN[3] GPIO1[2]/PWM[2] 5 34 ADCIN[4] DIGIN[2] 6 33 ADCIN[5] DIGIN[3] 7 32 ADCIN[6] GPIO1[5]/PWM[5] 8 31 ADCIN[7] SWIM 9 30 VSSA NRST 10 29 VDDA VDD 11 28 CPP[0] VSS 12 27 CPP[1] VOUT 13 26 CPM3 GPIO0[4]/Dali_TX 14 25 CPP[2] GPIO0[5]/Dali_RX 15 24 CPP[3] GPIO1[4]/PWM[4] 16 23 GPIO0[1]/Uart_RX DIGIN[4] 17 22 GPIO0[0]/Uart_TX DIGIN[5] 18 21 GPIO0[3]/I2C_scl/HseOscin/Uart_RX GPIO1[3]/PWM[3] 19 20 GPIO0[2]/I2C_sda/HseOscout/Uart_TX GIPD170120131835FSR 4/10 Doc ID 024169 Rev 2 STLUX385 Pinout and pin description 3.2 Pin description Table 1. Pin description Pin Type Pin name Main function Alternate function 1 Alternate function 2 Alternate function 3 1 I/O GPIO1[0]/PWM[0] SMED PWM channel 0 General purpose I/O 10 - - 2 I/O DIGIN[0]/CCO_clk Digital input 0 Configurable clock output signal (CCO) - - 3 I DIGIN[1] Digital input 1 - - - 4 I/O GPIO1[1]/PWM[1] SMED PWM channel 1 General purpose I/O 11 - - 5 I/O GPIO1[2]/PWM[2] SMED PWM channel 2 General purpose I/O 12 - - 6 I DIGIN[2] Digital input 2 - - - 7 I DIGIN[3 ] Digital input 3 - - - 8 I/O GPIO1[5]/PWM[5] SMED PWM channel 5 General purpose I/O 15 - - 9 I/O SWIM SWIM data interface - - - 10 I/O NRST Reset - - - 11 PS VDD Digital and I/O power supply - - - 12 PS VSS Digital and I/O ground - - - 13 PS VOUT 1.8 V regulator capacitor - - - 14 I/O GPIO0[4]/Dali_tx General purpose I/O 04 DALI data transmit - - 15 I/O GPIO0[5]/Dali_rx General purpose I/O 05 DALI data receive - - 16 I/O GPIO1[4]/PWM[4] SMED PWM channel 4 General purpose I/O 14 - - 17 I DIGIN[4] Digital input 4 - - - 18 I DIGIN[5] Digital input 5 - - - 19 I/O GPIO1[3]/PWM[3] SMED PWM channel 3 General purpose I/O 13 - - 20 I/O GPIO0[2]/I2C_sda/ HseOscout/Uart_tx General purpose I/O 02 I2C data Output crystal oscillator signal UART data transmit number Doc ID 024169 Rev 2 5/10 Pinout and pin description Table 1. Pin number 6/10 STLUX385 Pin description (continued) Type Pin name Main function Alternate function 1 Alternate function 2 Alternate function 3 UART data receive 21 I/O GPIO0[3]/I2C_scl/ HseOscin/Uart_rx General purpose I/O 03 I2C clock Input crystal oscillator signal / input frequency signal 22 I/O GPIO0[0]/Uart_tx General purpose I/O 00 UART data transmit - - 23 I/O GPIO0[1]/Uart_rx General purpose I/O 01 UART data receive - - 24 I CPP[3] Positive analog comparator input 3 - - - 25 I CPP[2] Positive analog comparator input 2 - - - 26 I CPM3 Negative analog comparator input 3 - - - 27 I CPP[1] Positive analog comparator input 1 - - - 28 I CPP[0] Positive analog comparator input 0 - - - 29 PS VDDA Analog power supply - - - 30 PS VSSA Analog ground - - - 31 I ADCIN[7] Analog input 7 - - - 32 I ADCIN[6] Analog input 6 - - - 33 I ADCIN[5] Analog input 5 - - - 34 I ADCIN[4] Analog input 4 - - - 35 I ADCIN[3] Analog input 3 - - - 36 I ADCIN[2] Analog input 2 - - - 37 I ADCIN[1] Analog input 1 - - - 38 I ADCIN[0] Analog input 0 - - - Doc ID 024169 Rev 2 STLUX385 4 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 2. TSSOP38 mechanical data mm. Dim. Min. Typ. A Max. 1.20 A1 0.05 A2 0.80 b 0.17 0.27 c 0.09 0.20 D 9.60 9.70 9.80 E 6.20 6.40 6.60 E1 4.30 4.40 4.50 e L 1.00 1.05 0.50 0.45 L1 k 0.15 0.60 0.75 1.00 0 aaa 8 0.10 Doc ID 024169 Rev 2 7/10 Package mechanical data Figure 3. STLUX385 TSSOP8 package drawing 0117861_C 8/10 Doc ID 024169 Rev 2 STLUX385 5 Revision history Revision history Table 3. Document revision history Date Revision Changes 18-Jan-2013 1 Initial release. 08-Feb-2013 2 Updated features and description on the cover page. Doc ID 024169 Rev 2 9/10 STLUX385 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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