GigaDevice Semiconductor Inc.
GD32E230xx
ARM® Cortex®-M23 32-bit MCU
Datasheet
GD32E230xx Datasheet
Table of Contents
Table of Contents ........................................................................................................... 1
List of Figures ................................................................................................................ 4
List of Tables .................................................................................................................. 5
1
General description ................................................................................................. 7
2
Device overview ....................................................................................................... 8
3
2.1
Device information ...................................................................................................... 8
2.2
Block diagram ............................................................................................................ 10
2.3
Pinouts and pin assignment ..................................................................................... 11
2.4
Memory map .............................................................................................................. 14
2.5
Clock tree ................................................................................................................... 16
2.6
Pin definitions ............................................................................................................ 17
2.6.1
GD32E230Cx LQFP48 pin definitions .................................................................................. 17
2.6.2
GD32E230Kx LQFP32 pin definitions .................................................................................. 20
2.6.3
GD32E230Kx QFN32 pin definitions .................................................................................... 22
2.6.4
GD32E230Gx QFN28 pin definitions .................................................................................... 24
2.6.5
GD32E230Fx TSSOP20 pin definitions ................................................................................ 27
2.6.6
GD32E230Fx LGA20 pin definitions ..................................................................................... 28
2.6.7
GD32E230xx pin alternate functions .................................................................................... 31
Functional description .......................................................................................... 34
3.1
ARM® Cortex®-M23 core ............................................................................................ 34
3.2
Embedded memory ................................................................................................... 34
3.3
Clock, reset and supply management ...................................................................... 34
3.4
Boot modes ................................................................................................................ 35
3.5
Power saving modes ................................................................................................. 35
3.6
Analog to digital converter (ADC) ............................................................................ 36
3.7
DMA ............................................................................................................................ 37
3.8
General-purpose inputs/outputs (GPIOs) ................................................................ 37
3.9
Timers and PWM generation..................................................................................... 37
3.10
Real time clock (RTC) ............................................................................................ 38
3.11
Inter-integrated circuit (I2C) .................................................................................. 39
3.12
Serial peripheral interface (SPI) ............................................................................ 39
1
GD32E230xx Datasheet
4
5
3.13
Universal synchronous asynchronous receiver transmitter (USART) ............... 40
3.14
Inter-IC sound (I2S) ................................................................................................ 40
3.15
Comparators (CMP)................................................................................................ 40
3.16
Debug mode ........................................................................................................... 40
3.17
Package and operation temperature ..................................................................... 41
Electrical characteristics ....................................................................................... 42
4.1
Absolute maximum ratings ....................................................................................... 42
4.2
Operating conditions characteristics ....................................................................... 42
4.3
Power consumption .................................................................................................. 44
4.4
EMC characteristics .................................................................................................. 49
4.5
Power supply supervisor characteristics ................................................................ 51
4.6
Electrical sensitivity .................................................................................................. 51
4.7
External clock characteristics .................................................................................. 52
4.8
Internal clock characteristics ................................................................................... 54
4.9
PLL characteristics.................................................................................................... 56
4.10
Memory characteristics ......................................................................................... 56
4.11
NRST pin characteristics ....................................................................................... 56
4.12
GPIO characteristics .............................................................................................. 57
4.13
ADC characteristics ............................................................................................... 58
4.14
Temperature sensor characteristics ..................................................................... 60
4.15
Comparators characteristics ................................................................................. 60
4.16
TIMER characteristics ............................................................................................ 61
4.17
I2C characteristics ................................................................................................. 61
4.18
SPI characteristics ................................................................................................. 62
4.19
I2S characteristics.................................................................................................. 63
4.20
USART characteristics ........................................................................................... 63
4.21
WDGT characteristics ............................................................................................ 64
4.22
Parameter conditions............................................................................................. 64
Package information.............................................................................................. 65
5.1
LQFP48 package outline dimensions....................................................................... 65
5.2
LQFP32 package outline dimensions....................................................................... 67
5.3
QFN32 package outline dimensions ........................................................................ 69
2
GD32E230xx Datasheet
5.4
QFN28 package outline dimensions ........................................................................ 70
5.5
TSSOP20 package outline dimensions .................................................................... 71
5.6
LGA20 package outline dimensions ........................................................................ 72
5.7
Thermal characteristics ............................................................................................ 73
6
Ordering information ............................................................................................. 75
7
Revision history ..................................................................................................... 76
3
GD32E230xx Datasheet
List of Figures
Figure 2-1. GD32E230xx block diagram .................................................................................................. 10
Figure 2-2. GD32E230Cx LQFP48 pinouts ............................................................................................... 11
Figure 2-3. GD32E230Kx LQFP32 pinouts ............................................................................................... 11
Figure 2-4. GD32E230Kx QFN32 pinouts ................................................................................................ 12
Figure 2-5. GD32E230Gx QFN28 pinouts ................................................................................................ 12
Figure 2-6. GD32E230Fx TSSOP20 pinouts ............................................................................................ 12
Figure 2-7. GD32E230Fx LGA20 pinouts ................................................................................................. 13
Figure 2-8. GD32E230xx clock tree .......................................................................................................... 16
Figure 4-1. Recommended power supply decoupling capacitors(1) (2) ................................................. 42
Figure 4-2. Typical supply current consumption in Run mode ............................................................ 48
Figure 4-3. Typical supply current consumption in Sleep mode .......................................................... 48
Figure 4-4. Recommended external NRST pin circuit............................................................................ 57
Figure 4-5. I/O port AC characteristics definition ................................................................................... 58
Figure 5-1. LQFP48 package outline ....................................................................................................... 65
Figure 5-2. LQFP32 package outline ....................................................................................................... 67
Figure 5-3. QFN32 package outline ......................................................................................................... 69
Figure 5-4. QFN28 package outline ......................................................................................................... 70
Figure 5-5. TSSOP20 package outline ..................................................................................................... 71
Figure 5-6. LGA20 package outline ......................................................................................................... 72
4
GD32E230xx Datasheet
List of Tables
Table 2-1. GD32E230xx devices features and peripheral list .................................................................. 8
Table 2-2. GD32E230xx devices features and peripheral list (continued) ............................................. 9
Table 2-3. GD32E230xx memory map ...................................................................................................... 14
Table 2-4. GD32E230Cx LQFP48 pin definitions .................................................................................... 17
Table 2-5. GD32E230Kx LQFP32 pin definitions .................................................................................... 20
Table 2-6. GD32E230Kx QFN32 pin definitions ...................................................................................... 22
Table 2-7. GD32E230Gx QFN28 pin definitions ...................................................................................... 24
Table 2-8. GD32E230Fx TSSOP20 pin definitions .................................................................................. 27
Table 2-9. GD32E230Fx LGA20 pin definitions ....................................................................................... 28
Table 2-10. Port A alternate functions summary .................................................................................... 31
Table 2-11. Port B alternate functions summary .................................................................................... 32
Table 2-12. Port F alternate functions summary .................................................................................... 32
Table 4-1. Absolute maximum ratings (1)(4) .............................................................................................. 42
Table 4-2. DC operating conditions ......................................................................................................... 42
Table 4-3. Clock frequency(1) .................................................................................................................... 43
Table 4-4. Operating conditions at Power up/ Power down(1) ............................................................... 43
Table 4-5. Start-up timings of Operating conditions (1) ........................................................................... 43
Table 4-6. Power saving mode wakeup timings characteristics(1) (2) .................................................... 43
Table 4-7. Power consumption characteristics (2)(3)(4) ............................................................................. 44
Table 4-8. Peripheral current consumption characteristics(1) ............................................................... 49
Table 4-9. EMS characteristics(1) .............................................................................................................. 50
Table 4-10. Power supply supervisor characteristics (1) ........................................................................ 51
Table 4-11. ESD characteristics (1) ........................................................................................................... 52
Table 4-12. Static latch-up characteristics(1) ........................................................................................... 52
Table 4-13. High speed external clock (HXTAL) generated from a crystal/ceramic characteristics . 52
Table 4-14. High speed external user clock characteristics (HXTAL in bypass mode) ...................... 53
Table 4-15. Low speed external clock (LXTAL) generated from a crystal/ceramic characteristics .. 53
Table 4-16. Low speed external user clock characteristics (LXTAL in bypass mode) ....................... 54
Table 4-17. High speed internal clock (IRC8M) characteristics ............................................................ 54
Table 4-18. Low speed internal clock (IRC40K) characteristics ........................................................... 55
Table 4-19. High speed internal clock (IRC28M) characteristics .......................................................... 55
Table 4-20. PLL characteristics ................................................................................................................ 56
Table 4-21. Flash memory characteristics .............................................................................................. 56
Table 4-22. NRST pin characteristics ....................................................................................................... 56
Table 4-23. I/O port DC characteristics(1) (3) ............................................................................................. 57
Table 4-24. I/O port AC characteristics(1) (2) ............................................................................................. 58
Table 4-25. ADC characteristics ............................................................................................................... 58
Table 4-26. ADC RAIN max for fADC = 28 MHz(1) ......................................................................................... 59
Table 4-27. Temperature sensor characteristics .................................................................................... 60
Table 4-28. CMP characteristics(1) ............................................................................................................ 60
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GD32E230xx Datasheet
Table 4-29. TIMER characteristics (1) ........................................................................................................ 61
Table 4-30. I2C characteristics (1)(2)(3)........................................................................................................ 61
Table 4-31. Standard SPI characteristics(1) ............................................................................................. 62
Table 4-32. I2S characteristics(1)............................................................................................................... 63
Table 4-33. USART characteristics (1)....................................................................................................... 63
Table 4-34. FWDGT min/max timeout period at 40 kHz (IRC40K)(1) ...................................................... 64
Table 4-35. WWDGT min-max timeout value at 72 MHz (fPCLK1)(1) .......................................................... 64
Table 5-1. LQFP48 package dimensions ................................................................................................. 66
Table 5-2. LQFP32 package dimensions ................................................................................................. 68
Table 5-3. QFN32 package dimensions ................................................................................................... 69
Table 5-4. QFN28 package dimensions ................................................................................................... 70
Table 5-5. TSSOP20 package dimensions .............................................................................................. 71
Table 5-6. LGA20 package dimensions ................................................................................................... 72
Table 5-7. Package thermal characteristics(1) ......................................................................................... 73
Table 6-1. Part ordering code for GD32E230xx devices ........................................................................ 75
Table 7-1. Revision history ....................................................................................................................... 76
6
GD32E230xx Datasheet
1
General description
The GD32E230xx device belongs to the value line of GD32 MCU family. It is a new 32-bit
general-purpose microcontroller based on the ARM® Cortex®-M23 core. The Cortex-M23
processor is an energy-efficient processor with a very low gate count. It is intended to be used
for microcontroller and deeply embedded applications that require an area-optimized
processor. The processor delivers high energy efficiency through a small but powerful
instruction set and extensively optimized design, providing high-end processing hardware
including a single-cycle multiplier and a 17-cycle divider.
The GD32E230xx device incorporates the ARM® Cortex®-M23 32-bit processor core
operating at up to 72 MHz frequency with Flash accesses 0~2 wait states to obtain maximum
efficiency. It provides up to 64 KB embedded Flash memory and up to 8 KB SRAM memory.
An extensive range of enhanced I/Os and peripherals connected to two APB buses. The
devices offer one 12-bit ADC and one comparator, up to five general 16-bit timers, a basic
timer, a PWM advanced timer, as well as standard and advanced communication interfaces:
up to two SPIs, two I2Cs, two USARTs, and an I2S.
The device operates from a 1.8 to 3.6 V power supply and available in –40 to +85 °C
temperature range. Several power saving modes provide the flexibility for maximum
optimization between wakeup latency and power consumption, an especially important
consideration in low power applications.
The above features make the GD32E230xx devices suitable for a wide range of applications,
especially in areas such as industrial control, motor drives, user interface, power monitor and
alarm systems, consumer and handheld equipment, gaming and GPS, E-bike and so on.
7
GD32E230xx Datasheet
2
Device overview
2.1
Device information
Table 2-1. GD32E230xx devices features and peripheral list
Part Number
GD32E230xx
K4U6 K6U6 K8U6 K4T6 K6T6 K8T6 C4T6 C6T6 C8T6
16
32
64
16
32
64
16
32
64
SRAM (KB)
4
6
8
4
6
8
4
6
8
Connectivity
Timers
FLASH (KB)
General
4
4
5
4
4
5
4
4
5
timer(16-bit)
(2,13,15,16)
(2,13,15,16)
(2,13-16)
(2,13,15,16)
(2,13,15,16)
(2,13-16)
(2,13,15,16)
(2,13,15,16)
(2,13-16)
Advanced
1
1
1
1
1
1
1
1
1
timer(16-bit)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
SysTick
1
1
1
1
1
1
1
1
1
Basic
1
1
1
1
1
1
1
1
1
timer(16-bit)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
Watchdog
2
2
2
2
2
2
2
2
2
RTC
1
1
1
1
1
1
1
1
1
1
2
2
1
2
2
1
2
2
(0)
(0-1)
(0-1)
(0)
(0-1)
(0-1)
(0)
(0-1)
(0-1)
1
1
2
1
1
2
1
1
2
(0)
(0)
(0-1)
(0)
(0)
(0-1)
(0)
(0)
(0-1)
1/1
1/1
2/1
1/1
1/1
2/1
1/1
1/1
2/1
(0)/(0)
(0)/(0)
(0-1)/(0)
(0)/(0)
(0)/(0)
(0-1)/(0)
(0)/(0)
(0)/(0)
(0-1)/(0)
GPIO
27
27
27
25
25
25
39
39
39
CMP
1
1
1
1
1
1
1
1
1
EXTI
16
16
16
16
16
16
16
16
16
1
1
1
1
1
1
1
1
1
10
10
10
10
10
10
10
10
10
2
2
2
2
2
2
2
2
2
USART
I2C
SPI/I2S
ADC
Units
Channels
(External)
Channels
(Internal)
Package
QFN32
LQFP32
LQFP48
8
GD32E230xx Datasheet
Table 2-2. GD32E230xx devices features and peripheral list (continued)
GD32E230xx
Part Number
F4V6 F6V6 F8V6
F4P6
F6P6 F8P6 G4U6 G6U6 G8U6
16
32
64
16
32
64
16
32
64
SRAM (KB)
4
6
8
4
6
8
4
6
8
Connectivity
Timers
FLASH (KB)
General
4
4
4
4
4
4
4
4
5
timer(16-bit)
(2,13,15,16)
(2,13,15,16)
(2,13,15,16)
(2,13,15,16)
(2,13,15,16)
(2,13,15,16)
(2,13,15,16)
(2,13,15,16)
(2,13-16)
Advanced
1
1
1
1
1
1
1
1
1
timer(16-bit)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
SysTick
1
1
1
1
1
1
1
1
1
Basic
1
1
1
1
1
1
1
1
1
timer(16-bit)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
Watchdog
2
2
2
2
2
2
2
2
2
RTC
1
1
1
1
1
1
1
1
1
1
2
2
1
2
2
1
2
2
(0)
(0-1)
(0-1)
(0)
(0-1)
(0-1)
(0)
(0-1)
(0-1)
1
1
2
1
1
2
1
1
2
(0)
(0)
(0-1)
(0)
(0)
(0-1)
(0)
(0)
(0-1)
1/1
1/1
2/1
1/1
1/1
2/1
1/1
1/1
2/1
(0)/(0)
(0)/(0)
(0-1)/(0)
(0)/(0)
(0)/(0)
(0-1)/(0)
(0)/(0)
(0)/(0)
(0-1)/(0)
GPIO
15
15
15
15
15
15
23
23
23
CMP
1
1
1
1
1
1
1
1
1
EXTI
16
16
16
16
16
16
16
16
16
1
1
1
1
1
1
1
1
1
9
9
9
9
9
9
10
10
10
2
2
2
2
2
2
2
2
2
USART
I2C
SPI/I2S
ADC
Units
Channels
(External)
Channels
(Internal)
Package
LGA20
TSSOP20
QFN28
9
GD32E230xx Datasheet
2.2
Block diagram
Figure 2-1. GD32E230xx block diagram
LDO
1.2V
TPIU
SW
AHB2: Fma x = 72MHz
AHB Matrix
AHB BUS
ARM Cortex-M23
Processor
Fmax: 72MHz
NVIC
GPIO Ports
A, B, C, F
SRAM
Controller
SRAM
Flash
Memory
Controller
Flash
Memory
POR/PDR
LVD
PLL
GP DMA
5chs
Fmax: 72MHz
HXTAL
4-32MHz
AHB1: Fma x = 72MHz
AHB to APB
Bridge 2
CRC
AHB to APB
Bridge 1
IRC8M
8MHz
RST/CLK
Controller
IRC40K
40KHz
Powered by LDO (1.2V)
PMU
EXTI
FWDGT
12-bit
SAR ADC
IRC28M
28MHz
Powered by V DD/VDDA
ADC
WWDGT
RTC
USART0
I2C0
SPI0/I2S0
TIMER0
APB1: Fmax = 72MHz
CMP
APB2: Fmax = 72MHz
SYS Config
CMP
I2C1
USART1
SPI1
TIMER5
TIMER14
TIMER2
TIMER15
TIMER13
TIMER16
10
GD32E230xx Datasheet
2.3
Pinouts and pin assignment
Figure 2-2. GD32E230Cx LQFP48 pinouts
PA14
PA15
PB3
PB4
PB5
PB6
PB7
BOOT0
PB8
PB9
VSS
VDD
48 47 46 45 44 43 42 41 40 39 38 37
VDD
1
36
PF7
PC13
2
35
PF6
PC14-OSC32IN
3
34
PA13
PC15-OSC32OUT
PF0-OSCIN
4
33
PA12
32
PA11
PF1-OSCOUT
NRST
VSSA
6
31
PA10
30
PA9
8
29
VDDA
9
28
PA8
PB15
PA0
10
27
PB14
PA1
PA2
11
26
PB13
25
PB12
5
GigaDevice GD32E230Cx
LQFP48
7
12
13 14 15 16 17 18 19 20 21 22 23 24
VDD
VSS
PB11
PB10
PB2
PB1
PB0
PA7
PA6
PA5
PA4
PA3
Figure 2-3. GD32E230Kx LQFP32 pinouts
PA15
PB3
PB4
PB5
PB6
PB7
BOOT0
Vss
32 31 30 29 28 27 26 25
VDD
1
24
PA14
PF0-OSCIN
2
23
PA13
PF1-OSCOUT
3
PA12
NRST
VDDA
4
5
22
GigaDevice GD32E230Kx 21
LQFP32
20
PA0
6
19
PA9
PA1
PA2
7
18
PA8
8
17
VDD
PA11
PA10
9 10 11 12 13 14 15 16
VSS
PB1
PB0
PA7
PA6
PA5
PA4
PA3
11
GD32E230xx Datasheet
Figure 2-4. GD32E230Kx QFN32 pinouts
5
PA1
7
PA2
8
PA15
PB3
VDDA
PA0
PB4
OSCOUT/PF1
NRST
PB5
2
3
PB6
OSCIN/PF0
PB7
BOOT0
PB8
1
VDD
32 31 30 29 28 27 26 25
24
PA14
23
PA13
22
PA12
21
PA11
20
PA10
19
PA9
18
PA8
17
VDD
GigaDevice
GD32E230Kx
QFN32
4
6
VSS, VSSA
9 10 11 12 13 14 15 16
PB2
PB1
PB0
PA7
PA6
PA5
PA4
PA3
Figure 2-5. GD32E230Gx QFN28 pinouts
PA14
PA15
PB3
PB4
OSCIN/PF0
PB5
PB6
PB7
BOOT0
28 27 26 25 24 23 22
1
21
2
20
OSCOUT/PF1
NRST
3
VDDA
PA0
5
PA1
7
GigaDevice
GD32E230Gx
QFN28
4
6
8 9 10 11 12 13 14
PA13
PA10(PA12)
19
PA9(PA11)
18
PA8
17
VDD
16
VSS
PB1
15
PB0
PA6
PA7
PA5
PA4
PA3
PA2
Figure 2-6. GD32E230Fx TSSOP20 pinouts
PA14
1
20
OSCIN/PF0
2
19
PA13
OSCOUT/PF1
3
18
PA10(PA12)
17
PA9(PA11)
BOOT0
NRST
4
VDDA
5
PA0
6
GigaDevice
16
GD32E230Fx
TSSOP20 15
PA1
7
14
PB1
PA2
8
13
PA7
PA3
9
12
PA6
PA4
10
11
PA5
VDD
Vss
12
GD32E230xx Datasheet
Figure 2-7. GD32E230Fx LGA20 pinouts
PA13
PA14
BOOT0
OSCIN/PF0
OSCOUT/PF1
20 19 18 17 16
NRST
1
VDDA
PA0
PA1
2
PA2
15
GigaDevice 14
3 GD32E230Fx 13
4
LGA20
12
5
11
PA9(PA11)
VDD
VSS
PB1
PA3
PA6
PA5
9 10
PA7
8
PA4
6 7
PA10(PA12)
13
GD32E230xx Datasheet
2.4
Memory map
Table 2-3. GD32E230xx memory map
Pre-defined
ADDRESS
Peripherals
0xE000 0000 - 0xE00F FFFF
Cortex M23 internal peripherals
External Device
0xA000 0000 - 0xDFFF FFFF
Reserved
External RAM
0x60000000 - 0x9FFFFFFF
Reserved
0x5004 0000 - 0x5FFF FFFF
Reserved
0x5000 0000 - 0x5003 FFFF
Reserved
0x4800 1800 - 0x4FFF FFFF
Reserved
0x4800 1400 - 0x4800 17FF
GPIOF
0x4800 1000 - 0x4800 13FF
Reserved
0x4800 0C00 - 0x4800 0FFF
Reserved
0x4800 0800 - 0x4800 0BFF
GPIOC
0x4800 0400 - 0x4800 07FF
GPIOB
0x4800 0000 - 0x4800 03FF
GPIOA
0x4002 4400 - 0x47FF FFFF
Reserved
0x4002 4000 - 0x4002 43FF
Reserved
0x4002 3400 - 0x4002 3FFF
Reserved
0x4002 3000 - 0x4002 33FF
CRC
0x4002 2400 - 0x4002 2FFF
Reserved
0x4002 2000 - 0x4002 23FF
FMC
0x4002 1400 - 0x4002 1FFF
Reserved
0x4002 1000 - 0x4002 13FF
RCU
0x4002 0400 - 0x4002 0FFF
Reserved
0x4002 0000 - 0x4002 03FF
DMA
0x4001 8000 - 0x4001 FFFF
Reserved
0x4001 5C00 - 0x4001 7FFF
Reserved
0x4001 5800 - 0x4001 5BFF
DBG
0x4001 4C00 - 0x4001 57FF
Reserved
0x4001 4800 - 0x4001 4BFF
TIMER16
0x4001 4400 - 0x4001 47FF
TIMER15
0x4001 4000 - 0x4001 43FF
TIMER14
0x4001 3C00 - 0x4001 3FFF
Reserved
0x4001 3800 - 0x4001 3BFF
USART0
0x4001 3400 - 0x4001 37FF
Reserved
0x4001 3000 - 0x4001 33FF
SPI0/I2S0
0x4001 2C00 - 0x4001 2FFF
TIMER0
0x4001 2800 - 0x4001 2BFF
Reserved
0x4001 2400 - 0x4001 27FF
ADC
0x4001 0800 - 0x4001 23FF
Reserved
Regions
Bus
AHB1
AHB2
AHB1
Peripherals
APB2
14
GD32E230xx Datasheet
Pre-defined
Regions
Bus
APB1
SRAM
Code
ADDRESS
Peripherals
0x4001 0400 - 0x4001 07FF
EXTI
0x4001 0000 - 0x4001 03FF
SYSCFG + CMP
0x4000 CC00 - 0x4000 FFFF
Reserved
0x4000 C800 - 0x4000 CBFF
Reserved
0x4000 C400 - 0x4000 C7FF
Reserved
0x4000 C000 - 0x4000 C3FF
Reserved
0x4000 8000 - 0x4000 BFFF
Reserved
0x4000 7C00 - 0x4000 7FFF
Reserved
0x4000 7800 - 0x4000 7BFF
Reserved
0x4000 7400 - 0x4000 77FF
Reserved
0x4000 7000 - 0x4000 73FF
PMU
0x4000 6400 - 0x4000 6FFF
Reserved
0x4000 6000 - 0x4000 63FF
Reserved
0x4000 5C00 - 0x4000 5FFF
Reserved
0x4000 5800 - 0x4000 5BFF
I2C1
0x4000 5400 - 0x4000 57FF
I2C0
0x4000 4800 - 0x4000 53FF
Reserved
0x4000 4400 - 0x4000 47FF
USART1
0x4000 4000 - 0x4000 43FF
Reserved
0x4000 3C00 - 0x4000 3FFF
Reserved
0x4000 3800 - 0x4000 3BFF
SPI1
0x4000 3400 - 0x4000 37FF
Reserved
0x4000 3000 - 0x4000 33FF
FWDGT
0x4000 2C00 - 0x4000 2FFF
WWDGT
0x4000 2800 - 0x4000 2BFF
RTC
0x4000 2400 - 0x4000 27FF
Reserved
0x4000 2000 - 0x4000 23FF
TIMER13
0x4000 1400 - 0x4000 1FFF
Reserved
0x4000 1000 - 0x4000 13FF
TIMER5
0x4000 0800 - 0x4000 0FFF
Reserved
0x4000 0400 - 0x4000 07FF
TIMER2
0x4000 0000 - 0x4000 03FF
Reserved
0x2000 2000 - 0x3FFF FFFF
Reserved
0x2000 0000 - 0x2000 1FFF
SRAM
0x1FFF F810 - 0x1FFF FFFF
Reserved
0x1FFF F800 - 0x1FFF F80F
Option bytes
0x1FFF EC00 - 0x1FFF F7FF
System memory
0x0801 0000 - 0x1FFF EBFF
Reserved
0x0800 0000 - 0x0800 FFFF
Main Flash memory
0x0001 0000 - 0x07FF FFFF
Reserved
15
GD32E230xx Datasheet
Pre-defined
Bus
Regions
ADDRESS
Peripherals
Aliased to Flash or
0x00000000 - 0x0000FFFF
2.5
system memory
Clock tree
Figure 2-8. GD32E230xx clock tree
FMC
CK_I2S
(to I2S)
CK_FMC
SCS[1:0]
FMC enable
(by hardware)
(to FMC)
HCLK
CK_IRC8M
00
8 MHz
IRC8M
/2
0
PLL
CK_PLL
1
10
AHB enable
CK_SYS
72 MHz max
AHB
Prescaler
÷1,2...512
(to AHB bus,Cortex-M23,SRAM,DMA)
CK_CST
CK_AHB
÷8
72 MHz max
(to Cortex-M23 SysTick)
FCLK
PLLSEL
01
PLLEN
(free running clock)
PREDV
4-32 MHz
HXTAL
Clock
Monitor
÷1,2.
..16
TIMER2,5,13
÷[apb1
prescaler/2]
CK_TIMERx
TIMERx
enable
to TIMER2,5,13
CK_HXTAL
/32
APB1
Prescaler
÷1,2,4,8,16
11
CK_APB1
PCLK1
72 MHz max
to APB1 peripherals
Peripheral enable
32.768 KHz
LXTAL
CK_RTC
01
(to RTC)
10
40 KHz
IRC40K
RTCSRC[1:0]
CK_FWDGT
(to FWDGT)
TIMER0,14,1
5,16
÷[apb2
prescaler/2]
APB2
Prescaler
÷1,2,4,8,16
CK_TIMERx
TIMERx
enable
CK_APB2
PCLK2
72 MHz max
÷1,2,4...128
CKOUTDIV
to APB2 peripherals
Peripheral enable
CKOUTSEL
CK_OUT
to TIMER0,14,15,16
0
CK_IRC28M
CK_IRC40K
CK_ LXTAL
CK_SYS
CK_IRC8M
CK_HXTAL
/1,2
CK_PLL
CK_ IRC8M
11
CK_L XTAL
10
CK_ SYS
01
CK_ USART0
to USART0
00
USART0SEL[1:0]
28 MHz
IRC28M
÷1,2
0
CK_ ADC to ADC
1
28 MHz max
ADCSEL
ADC
Prescaler
÷2,4,6,8
ADC
Prescaler
÷3,5,7, 9
Note:
If the APB prescaler is 1, the timer clock frequencies are set to AHB frequency divide by 1.
Otherwise, they are set to the AHB frequency divide by half of APB prescaler.
Legend:
HXTAL: High speed crystal oscillator
LXTAL: Low speed crystal oscillator
IRC8M: Internal 8M RC oscillator
IRC40K: Internal 40K RC oscillator
IRC28M: Internal 28M RC oscillator
16
GD32E230xx Datasheet
2.6
Pin definitions
2.6.1
GD32E230Cx LQFP48 pin definitions
Table 2-4. GD32E230Cx LQFP48 pin definitions
Pin
I/O
Type(1)
Level(2)
Pin Name
Pins
VDD
1
P
2
I/O
3
I/O
4
I/O
Default: VDD
PC13TAMPER-
Default: PC13
Additional: RTC_TAMP0, RTC_TS, RTC_OUT, WKUP1
RTC
PC14OSC32IN
PC15OSC32OUT
Functions description
Default: PC14
Additional: OSC32IN
Default: PC15
Additional: OSC32OUT
Default: PF0
PF0-OSCIN
5
I/O
5VT
Alternate: I2C0_SDA
Additional: OSCIN
PF1OSCOUT
Default: PF1
6
I/O
5VT
Alternate: I2C0_SCL
Additional: OSCOUT
Default: NRST
NRST
7
I/O
VSSA
8
P
Default: VSSA
VDDA
9
P
Default: VDDA
Default: PA0
PA0-WKUP
10
I/O
Alternate: USART0_CTS(3), USART1_CTS(4), CMP_OUT,
I2C1_SCL(5)
Additional: ADC_IN0, CMP_IM6, RTC_TAMP1, WKUP0
Default: PA1
PA1
11
I/O
Alternate: USART0_RTS(3), USART1_RTS(4),
I2C1_SDA(5), EVENTOUT, TIMER14_CH0_ON(5)
Additional: ADC_IN1, CMP_IP
Default: PA2
PA2
12
I/O
Alternate: USART0_TX(3), USART1_TX(4),
TIMER14_CH0(5)
Additional: ADC_IN2, CMP_IM7
Default: PA3
PA3
13
I/O
Alternate: USART0_RX(3), USART1_RX(4),
TIMER14_CH1(5)
Additional: ADC_IN3
Default: PA4
PA4
14
I/O
Alternate: SPI0_NSS, I2S0_WS, USART0_CK(3),
USART1_CK(4), TIMER13_CH0, SPI1_NSS(5)
Additional: ADC_IN4, CMP_IM4
17
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Default: PA5
PA5
15
Alternate: SPI0_SCK, I2S0_CK
I/O
Additional: ADC_IN5, CMP_IM5
Default: PA6
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
PA6
16
TIMER0_BRKIN, TIMER15_CH0, EVENTOUT,
I/O
CMP_OUT
Additional: ADC_IN6
Default: PA7
Alternate: SPI0_MOSI, I2S0_SD, TIMER2_CH1,
PA7
17
TIMER13_CH0, TIMER0_CH0_ON, TIMER16_CH0,
I/O
EVENTOUT
Additional: ADC_IN7
Default: PB0
PB0
18
Alternate: TIMER2_CH2, TIMER0_CH1_ON,
I/O
USART1_RX(4), EVENTOUT
Additional: ADC_IN8
Default: PB1
PB1
19
Alternate: TIMER2_CH3, TIMER13_CH0,
I/O
TIMER0_CH2_ON, SPI1_SCK(5)
Additional: ADC_IN9
PB2
20
I/O
5VT
Default: PB2
Alternate: TIMER2_ETI
Default: PB10
PB10
21
I/O
5VT
Alternate: I2C0_SCL(3),I2C1_SCL(5), SPI1_IO2(5),
SPI1_SCK(5)
Default: PB11
PB11
22
I/O
5VT
Alternate: I2C0_SDA(3),I2C1_SDA(5), EVENTOUT,
SPI1_IO3(5)
VSS
23
P
Default: VSS
VDD
24
P
Default: VDD
Default: PB12
PB12
25
I/O
5VT
Alternate: SPI0_NSS(3), SPI1_NSS(5), TIMER0_BRKIN,
I2C1_SMBA(5), EVENTOUT
Default: PB13
PB13
26
I/O
5VT
Alternate: SPI0_SCK(3), SPI1_SCK(5), TIMER0_CH0_ON,
I2C1_TXFRAME(5), I2C1_SCL(5)
Default: PB14
PB14
27
I/O
5VT
Alternate: SPI0_MISO(3), SPI1_MISO(5),
TIMER0_CH1_ON, TIMER14_CH0(5), I2C1_SDA(5)
Default: PB15
Alternate: SPI0_MOSI(3), SPI1_MOSI(5),
PB15
28
I/O
5VT
TIMER0_CH2_ON, TIMER14_CH0_ON(5),
TIMER14_CH1(5)
Additional: RTC_REFIN, WKUP6
18
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Default: PA8
PA8
29
I/O
5VT
Alternate: USART0_CK, TIMER0_CH0, CK_OUT,
USART1_TX(4), EVENTOUT
Default: PA9
PA9
30
I/O
5VT
Alternate: USART0_TX, TIMER0_CH1,
TIMER14_BRKIN(5), I2C0_SCL, CK_OUT
Default: PA10
PA10
31
I/O
5VT
Alternate: USART0_RX, TIMER0_CH2,
TIMER16_BRKIN, I2C0_SDA
Default: PA11
PA11
32
I/O
5VT
Alternate: USART0_CTS, TIMER0_CH3, CMP_OUT,
EVENTOUT, SPI1_IO2(5), I2C0_SMBA, I2C1_SCL(5)
Default: PA12
PA12
33
I/O
5VT
Alternate: USART0_RTS, TIMER0_ETI, EVENTOUT,
SPI1_IO3(5), I2C0_TXFRAME, I2C1_SDA(5)
PA13
34
I/O
5VT
PF6
35
I/O
5VT
PF7
36
I/O
5VT
PA14
37
I/O
5VT
Default: PA13/SWDIO
Alternate: SWDIO, IFRP_OUT, SPI1_MISO(5)
Default: PF6
Alternate: I2C0_SCL(3), I2C1_SCL(5)
Default: PF7
Alternate: I2C0_SDA(3), I2C1_SDA(5)
Default: PA14/SWCLK
Alternate: USART0_TX(3), USART1_TX(4), SWCLK,
SPI1_MOSI(5)
Default: PA15
PA15
38
I/O
5VT
Alternate: SPI0_NSS, I2S0_WS, USART0_RX(3),
USART1_RX(4), SPI1_NSS(5), EVENTOUT
PB3
39
I/O
5VT
PB4
40
I/O
5VT
Default: PB3
Alternate: SPI0_SCK, I2S0_CK, EVENTOUT
Default: PB4
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
EVENTOUT, I2C0_TXFRAME, TIMER16_BRKIN
Default: PB5
PB5
41
I/O
5VT
Alternate: SPI0_MOSI,I2S0_SD, I2C0_SMBA,
TIMER15_BRKIN, TIMER2_CH1
Additional: WKUP5
PB6
42
I/O
5VT
PB7
43
I/O
5VT
BOOT0
44
I
PB8
45
I/O
5VT
PB9
46
I/O
5VT
Default: PB6
Alternate: I2C0_SCL, USART0_TX, TIMER15_CH0_ON
Default: PB7
Alternate:I2C0_SDA, USART0_RX,TIMER16_CH0_ON
Default: BOOT0
Default: PB8
Alternate: I2C0_SCL, TIMER15_CH0
Default: PB9
Alternate: I2C0_SDA, IFRP_OUT, TIMER16_CH0,
19
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
EVENTOUT, I2S0_MCK, SPI1_NSS(5)
VSS
47
P
Default: VSS
VDD
48
P
Default: VDD
Notes:
(1) Type: I = input, O = output, P = power.
(2) I/O Level: 5VT = 5 V tolerant.
(3) Functions are available on GD32E230C4 devices only.
(4) Functions are available on GD32E230C8/6 devices.
(5) Functions are available on GD32E230C8 devices only.
2.6.2
GD32E230Kx LQFP32 pin definitions
Table 2-5. GD32E230Kx LQFP32 pin definitions
Pin
I/O
Type(1)
Level(2)
Pin Name
Pins
VDD
1
P
PF0-OSCIN
2
I/O
Functions description
Default: VDD
Default: PF0
5VT
Alternate: I2C0_SDA
Additional: OSCIN
PF1OSCOUT
Default: PF1
3
I/O
5VT
Alternate: I2C0_SCL
Additional: OSCOUT
NRST
4
I/O
VDDA
5
P
Default: NRST
Default: VDDA
Default: PA0
PA0-WKUP
6
I/O
Alternate: USART0_CTS(3), USART1_CTS(4), CMP_OUT,
I2C1_SCL(5)
Additional: ADC_IN0, CMP_IM6, RTC_TAMP1, WKUP0
Default: PA1
PA1
7
I/O
Alternate: USART0_RTS(3), USART1_RTS(4),
I2C1_SDA(5), EVENTOUT, TIMER14_CH0_ON(5)
Additional: ADC_IN1, CMP_IP
Default: PA2
PA2
8
I/O
Alternate: USART0_TX(3), USART1_TX(4),
TIMER14_CH0(5)
Additional: ADC_IN2, CMP_IM7
Default: PA3
PA3
9
I/O
Alternate: USART0_RX(3), USART1_RX(4),
TIMER14_CH1(5)
Additional: ADC_IN3
Default: PA4
PA4
10
I/O
Alternate: SPI0_NSS, I2S0_WS, USART0_CK(3),
USART1_CK(4), TIMER13_CH0, SPI1_NSS(5)
20
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Additional: ADC_IN4, CMP_IM4
Default: PA5
PA5
11
Alternate: SPI0_SCK, I2S0_CK
I/O
Additional: ADC_IN5, CMP_IM5
Default: PA6
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
PA6
12
TIMER0_BRKIN, TIMER15_CH0, EVENTOUT,
I/O
CMP_OUT
Additional: ADC_IN6
Default: PA7
Alternate: SPI0_MOSI, I2S0_SD, TIMER2_CH1,
PA7
13
TIMER13_CH0, TIMER0_CH0_ON, TIMER16_CH0,
I/O
EVENTOUT
Additional: ADC_IN7
Default: PB0
PB0
14
Alternate: TIMER2_CH2, TIMER0_CH1_ON,
I/O
USART1_RX(4), EVENTOUT
Additional: ADC_IN8
Default: PB1
PB1
15
Alternate: TIMER2_CH3, TIMER13_CH0,
I/O
TIMER0_CH2_ON, SPI1_SCK(5)
Additional: ADC_IN9
VSS
16
P
Default: VSS
VDD
17
P
Default: VDD
PA8
18
I/O
Default: PA8
5VT
Alternate: USART0_CK, TIMER0_CH0, CK_OUT,
USART1_TX(4), EVENTOUT
Default: PA9
PA9
19
I/O
5VT
Alternate: USART0_TX, TIMER0_CH1,
TIMER14_BRKIN(5), I2C0_SCL, CK_OUT
Default: PA10
PA10
20
I/O
5VT
Alternate: USART0_RX, TIMER0_CH2,
TIMER16_BRKIN, I2C0_SDA
Default: PA11
PA11
21
I/O
5VT
Alternate: USART0_CTS, TIMER0_CH3, CMP_OUT,
EVENTOUT, SPI1_IO2(5), I2C0_SMBA, I2C1_SCL(5)
Default: PA12
PA12
22
I/O
5VT
Alternate: USART0_RTS, TIMER0_ETI, EVENTOUT,
SPI1_IO3(5), I2C0_TXFRAME, I2C1_SDA(5)
PA13
23
I/O
5VT
PA14
24
I/O
5VT
Default: PA13/SWDIO
Alternate: SWDIO, IFRP_OUT, SPI1_MISO(5)
Default: PA14/SWCLK
Alternate: USART0_TX(3), USART1_TX(4), SWCLK,
SPI1_MOSI(5)
PA15
25
I/O
5VT
Default: PA15
Alternate: SPI0_NSS, I2S0_WS, USART0_RX(3),
21
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
USART1_RX(4), SPI1_NSS(5), EVENTOUT
PB3
26
I/O
5VT
Default: PB3
Alternate: SPI0_SCK, I2S0_CK, EVENTOUT
Default: PB4
PB4
27
I/O
5VT
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
EVENTOUT, I2C0_TXFRAME, TIMER16_BRKIN
Default: PB5
PB5
28
I/O
5VT
Alternate: SPI0_MOSI,I2S0_SD, I2C0_SMBA,
TIMER15_BRKIN, TIMER2_CH1
Additional: WKUP5
Default: PB6
PB6
29
I/O
5VT
PB7
30
I/O
5VT
BOOT0
31
I
Default: BOOT0
VSS
32
P
Default: VSS
Alternate: I2C0_SCL, USART0_TX, TIMER15_CH0_ON
Default: PB7
Alternate:I2C0_SDA, USART0_RX,TIMER16_CH0_ON
Notes:
(1) Type: I = input, O = output, P = power.
(2) I/O Level: 5VT = 5 V tolerant.
(3) Functions are available on GD32E230K4 devices only.
(4) Functions are available on GD32E230K8/6 devices.
(5) Functions are available on GD32E230K8 devices only.
2.6.3
GD32E230Kx QFN32 pin definitions
Table 2-6. GD32E230Kx QFN32 pin definitions
Pin Name
Pins
VDD
1
Pin
I/O
Type(1)
Level(2)
Functions description
Default: VDD
P
Default: PF0
PF0-OSCIN
2
I/O
5VT
Alternate: I2C0_SDA
Additional: OSCIN
PF1OSCOUT
Default: PF1
3
I/O
5VT
Alternate: I2C0_SCL
Additional: OSCOUT
NRST
4
I/O
VDDA
5
P
Default: NRST
Default: VDDA
Default: PA0
PA0-WKUP
6
I/O
Alternate: USART0_CTS(3), USART1_CTS(4), CMP_OUT,
I2C1_SCL(5)
Additional: ADC_IN0, CMP_IM6, RTC_TAMP1, WKUP0
Default: PA1
PA1
7
I/O
Alternate: USART0_RTS(3), USART1_RTS(4),
I2C1_SDA(5), EVENTOUT, TIMER14_CH0_ON(5)
22
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Additional: ADC_IN1, CMP_IP
Default: PA2
PA2
8
Alternate: USART0_TX(3), USART1_TX(4),
I/O
TIMER14_CH0(5)
Additional: ADC_IN2, CMP_IM7
Default: PA3
PA3
9
Alternate: USART0_RX(3), USART1_RX(4),
I/O
TIMER14_CH1(5)
Additional: ADC_IN3
Default: PA4
PA4
10
Alternate: SPI0_NSS, I2S0_WS, USART0_CK(3),
I/O
USART1_CK(4), TIMER13_CH0, SPI1_NSS(5)
Additional: ADC_IN4, CMP_IM4
Default: PA5
PA5
11
Alternate: SPI0_SCK, I2S0_CK
I/O
Additional: ADC_IN5, CMP_IM5
Default: PA6
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
PA6
12
TIMER0_BRKIN, TIMER15_CH0, EVENTOUT,
I/O
CMP_OUT
Additional: ADC_IN6
Default: PA7
Alternate: SPI0_MOSI, I2S0_SD, TIMER2_CH1,
PA7
13
TIMER13_CH0, TIMER0_CH0_ON, TIMER16_CH0,
I/O
EVENTOUT
Additional: ADC_IN7
Default: PB0
PB0
14
Alternate: TIMER2_CH2, TIMER0_CH1_ON,
I/O
USART1_RX(4), EVENTOUT
Additional: ADC_IN8
Default: PB1
PB1
15
Alternate: TIMER2_CH3, TIMER13_CH0,
I/O
TIMER0_CH2_ON, SPI1_SCK(5)
Additional: ADC_IN9
PB2
16
I/O
VDD
17
P
5VT
Default: PB2
Alternate: TIMER2_ETI
Default: VDD
Default: PA8
PA8
18
I/O
5VT
Alternate: USART0_CK, TIMER0_CH0, CK_OUT,
USART1_TX(4), EVENTOUT
Default: PA9
PA9
19
I/O
5VT
Alternate: USART0_TX, TIMER0_CH1,
TIMER14_BRKIN(5), I2C0_SCL, CK_OUT
Default: PA10
PA10
20
I/O
5VT
Alternate: USART0_RX, TIMER0_CH2,
TIMER16_BRKIN, I2C0_SDA
23
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Default: PA11
PA11
21
I/O
5VT
Alternate: USART0_CTS, TIMER0_CH3, CMP_OUT,
EVENTOUT, SPI1_IO2(5), I2C0_SMBA, I2C1_SCL(5)
Default: PA12
PA12
22
I/O
5VT
Alternate: USART0_RTS, TIMER0_ETI, EVENTOUT,
SPI1_IO3(5), I2C0_TXFRAME, I2C1_SDA(5)
PA13
23
I/O
5VT
PA14
24
I/O
5VT
Default: PA13/SWDIO
Alternate: SWDIO, IFRP_OUT, SPI1_MISO(5)
Default: PA14/SWCLK
Alternate: USART0_TX(3), USART1_TX(4), SWCLK,
SPI1_MOSI(5)
Default: PA15
PA15
25
I/O
5VT
Alternate: SPI0_NSS, I2S0_WS, USART0_RX(3),
USART1_RX(4), SPI1_NSS(5), EVENTOUT
PB3
26
I/O
5VT
Default: PB3
Alternate: SPI0_SCK, I2S0_CK, EVENTOUT
Default: PB4
PB4
27
I/O
5VT
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
EVENTOUT, I2C0_TXFRAME, TIMER16_BRKIN
Default: PB5
PB5
28
I/O
5VT
Alternate: SPI0_MOSI,I2S0_SD, I2C0_SMBA,
TIMER15_BRKIN, TIMER2_CH1
Additional: WKUP5
PB6
29
I/O
5VT
PB7
30
I/O
5VT
BOOT0
31
I
PB8
32
I/O
Default: PB6
Alternate: I2C0_SCL, USART0_TX, TIMER15_CH0_ON
Default: PB7
Alternate:I2C0_SDA, USART0_RX,TIMER16_CH0_ON
Default: BOOT0
5VT
Default: PB8
Alternate: I2C0_SCL, TIMER15_CH0
Notes:
(1) Type: I = input, O = output, P = power.
(2) I/O Level: 5VT = 5 V tolerant.
(3) Functions are available on GD32E230K4 devices only.
(4) Functions are available on GD32E230K8/6 devices.
(5) Functions are available on GD32E230K8 devices only.
2.6.4
GD32E230Gx QFN28 pin definitions
Table 2-7. GD32E230Gx QFN28 pin definitions
Pin
I/O
Type(1)
Level(2)
Pin Name
Pins
BOOT0
1
I
PF0-OSCIN
2
I/O
Functions description
Default: BOOT0
5VT
Default: PF0
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GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Alternate: I2C0_SDA
Additional: OSCIN
PF1OSCOUT
Default: PF1
3
I/O
5VT
Alternate: I2C0_SCL
Additional: OSCOUT
NRST
4
I/O
VDDA
5
P
Default: NRST
Default: VDDA
Default: PA0
PA0-WKUP
6
I/O
Alternate: USART0_CTS(3), USART1_CTS(4), CMP_OUT,
I2C1_SCL(5)
Additional: ADC_IN0, CMP_IM6, RTC_TAMP1, WKUP0
Default: PA1
PA1
7
I/O
Alternate: USART0_RTS(3), USART1_RTS(4),
I2C1_SDA(5), EVENTOUT, TIMER14_CH0_ON(5)
Additional: ADC_IN1, CMP_IP
Default: PA2
PA2
8
I/O
Alternate: USART0_TX(3), USART1_TX(4),
TIMER14_CH0(5)
Additional: ADC_IN2, CMP_IM7
Default: PA3
PA3
9
I/O
Alternate: USART0_RX(3), USART1_RX(4),
TIMER14_CH1(5)
Additional: ADC_IN3
Default: PA4
PA4
10
I/O
Alternate: SPI0_NSS, I2S0_WS, USART0_CK(3),
USART1_CK(4), TIMER13_CH0, SPI1_NSS(5)
Additional: ADC_IN4, CMP_IM4
Default: PA5
PA5
11
I/O
Alternate: SPI0_SCK, I2S0_CK
Additional: ADC_IN5, CMP_IM5
Default: PA6
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
PA6
12
I/O
TIMER0_BRKIN, TIMER15_CH0, EVENTOUT,
CMP_OUT
Additional: ADC_IN6
Default: PA7
Alternate: SPI0_MOSI, I2S0_SD, TIMER2_CH1,
PA7
13
I/O
TIMER13_CH0, TIMER0_CH0_ON, TIMER16_CH0,
EVENTOUT
Additional: ADC_IN7
Default: PB0
PB0
14
I/O
Alternate: TIMER2_CH2, TIMER0_CH1_ON,
USART1_RX(4), EVENTOUT
Additional: ADC_IN8
PB1
15
I/O
Default: PB1
Alternate: TIMER2_CH3, TIMER13_CH0,
25
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
TIMER0_CH2_ON, SPI1_SCK(5)
Additional: ADC_IN9
VSS
16
P
Default: VSS
VDD
17
P
Default: VDD
Default: PA8
PA8
18
I/O
5VT
Alternate: USART0_CK, TIMER0_CH0, CK_OUT,
USART1_TX(4), EVENTOUT
Default: PA9
PA9(6)
19
I/O
5VT
Alternate: USART0_TX, TIMER0_CH1,
TIMER14_BRKIN(5), I2C0_SCL, CK_OUT
Default: PA10
PA10(6)
20
I/O
5VT
Alternate: USART0_RX, TIMER0_CH2,
TIMER16_BRKIN, I2C0_SDA
PA13
21
I/O
5VT
PA14
22
I/O
5VT
Default: PA13/SWDIO
Alternate: SWDIO, IFRP_OUT, SPI1_MISO(5)
Default: PA14/SWCLK
Alternate: USART0_TX(3), USART1_TX(4), SWCLK,
SPI1_MOSI(5)
Default: PA15
PA15
23
I/O
5VT
Alternate: SPI0_NSS, I2S0_WS, USART0_RX(3),
USART1_RX(4), SPI1_NSS(5), EVENTOUT
PB3
24
I/O
5VT
Default: PB3
Alternate: SPI0_SCK, I2S0_CK, EVENTOUT
Default: PB4
PB4
25
I/O
5VT
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
EVENTOUT, I2C0_TXFRAME, TIMER16_BRKIN
Default: PB5
PB5
26
I/O
5VT
Alternate: SPI0_MOSI,I2S0_SD, I2C0_SMBA,
TIMER15_BRKIN, TIMER2_CH1
Additional: WKUP5
PB6
27
I/O
5VT
PB7
28
I/O
5VT
Default: PB6
Alternate: I2C0_SCL, USART0_TX, TIMER15_CH0_ON
Default: PB7
Alternate:I2C0_SDA,USART0_RX,TIMER16_CH0_ON
Notes:
(1) Type: I = input, O = output, P = power.
(2) I/O Level: 5VT = 5 V tolerant.
(3) Functions are available on GD32E230G4 devices only.
(4) Functions are available on GD32E230G8/6 devices.
(5) Functions are available on GD32E230G8 devices only.
(6) Pin pair PA11/PA12 can be remapped instead of pin pair PA9/PA10 using
SYSCFG_CFG0 register. Table 2-10. Port A alternate functions summary shows
PA11/PA12 remap.
26
GD32E230xx Datasheet
2.6.5
GD32E230Fx TSSOP20 pin definitions
Table 2-8. GD32E230Fx TSSOP20 pin definitions
Pin Name
Pins
PF0-OSCIN
2
Pin
I/O
Type(1)
Level(2)
I/O
5VT
Functions description
Default: PF0
Alternate: I2C0_SDA
Additional: OSCIN
PF1OSCOUT
Default: PF1
3
I/O
5VT
Alternate: I2C0_SCL
Additional: OSCOUT
NRST
4
I/O
VDDA
5
P
Default: NRST
Default: VDDA
Default: PA0
PA0-WKUP
6
I/O
Alternate: USART0_CTS(3), USART1_CTS(4), CMP_OUT,
I2C1_SCL(5)
Additional: ADC_IN0, CMP_IM6, RTC_TAMP1, WKUP0
Default: PA1
PA1
7
I/O
Alternate: USART0_RTS(3), USART1_RTS(4),
I2C1_SDA(5), EVENTOUT
Additional: ADC_IN1, CMP_IP
Default: PA2
PA2
8
I/O
Alternate: USART0_TX(3), USART1_TX(4)
Additional: ADC_IN2, CMP_IM7
Default: PA3
PA3
9
I/O
Alternate: USART0_RX(3), USART1_RX(4)
Additional: ADC_IN3
Default: PA4
PA4
10
I/O
Alternate: SPI0_NSS, I2S0_WS, USART0_CK(3),
USART1_CK(4), TIMER13_CH0, SPI1_NSS(5)
Additional: ADC_IN4, CMP_IM4
Default: PA5
PA5
11
I/O
Alternate: SPI0_SCK, I2S0_CK
Additional: ADC_IN5, CMP_IM5
Default: PA6
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
PA6
12
I/O
TIMER0_BRKIN, TIMER15_CH0, EVENTOUT,
CMP_OUT
Additional: ADC_IN6
Default: PA7
Alternate: SPI0_MOSI, I2S0_SD, TIMER2_CH1,
PA7
13
I/O
TIMER13_CH0, TIMER0_CH0_ON, TIMER16_CH0,
EVENTOUT
Additional: ADC_IN7
Default: PB1
PB1
14
I/O
Alternate: TIMER2_CH3, TIMER13_CH0,
TIMER0_CH2_ON, SPI1_SCK(5)
27
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Additional: ADC_IN9
VSS
15
P
Default: VSS
VDD
16
P
Default: VDD
PA9(6)
17
I/O
Default: PA9
5VT
Alternate: USART0_TX, TIMER0_CH1, I2C0_SCL,
CK_OUT
Default: PA10
PA10(6)
18
I/O
5VT
Alternate: USART0_RX, TIMER0_CH2,
TIMER16_BRKIN, I2C0_SDA
PA13
19
I/O
5VT
PA14
20
I/O
5VT
Default: PA13/SWDIO
Alternate: SWDIO, IFRP_OUT, SPI1_MISO(5)
Default: PA14/SWCLK
Alternate: USART0_TX(3), USART1_TX(4), SWCLK,
SPI1_MOSI(5)
BOOT0
1
Default: BOOT0
I
Notes:
(1) Type: I = input, O = output, P = power.
(2) I/O Level: 5VT = 5 V tolerant.
(3) Functions are available on GD32E230F4 devices only.
(4) Functions are available on GD32E230F8/6 devices.
(5) Functions are available on GD32E230F8 devices only.
(6) Pin pair PA11/PA12 can be remapped instead of pin pair PA9/PA10 using
SYSCFG_CFG0 register. Table 2-10. Port A alternate functions summary shows
PA11/PA12 remap.
2.6.6
GD32E230Fx LGA20 pin definitions
Table 2-9. GD32E230Fx LGA20 pin definitions
Pin Name
Pins
PF0-OSCIN
19
Pin
I/O
Type(1)
Level(2)
I/O
5VT
Functions description
Default: PF0
Alternate: I2C0_SDA
Additional: OSCIN
PF1OSCOUT
Default: PF1
20
I/O
5VT
Alternate: I2C0_SCL
Additional: OSCOUT
NRST
1
I/O
VDDA
2
P
Default: NRST
Default: VDDA
Default: PA0
PA0-WKUP
3
I/O
Alternate: USART0_CTS(3), USART1_CTS(4), CMP_OUT,
I2C1_SCL(5)
Additional: ADC_IN0, CMP_IM6, RTC_TAMP1, WKUP0
PA1
4
I/O
Default: PA1
28
GD32E230xx Datasheet
Pin Name
Pins
Pin
I/O
Type(1)
Level(2)
Functions description
Alternate: USART0_RTS(3), USART1_RTS(4),
I2C1_SDA(5), EVENTOUT
Additional: ADC_IN1, CMP_IP
Default: PA2
PA2
5
Alternate: USART0_TX(3), USART1_TX(4)
I/O
Additional: ADC_IN2, CMP_IM7
Default: PA3
PA3
6
Alternate: USART0_RX(3), USART1_RX(4)
I/O
Additional: ADC_IN3
Default: PA4
PA4
7
Alternate: SPI0_NSS, I2S0_WS, USART0_CK(3),
I/O
USART1_CK(4), TIMER13_CH0, SPI1_NSS(5)
Additional: ADC_IN4, CMP_IM4
Default: PA5
PA5
8
Alternate: SPI0_SCK, I2S0_CK
I/O
Additional: ADC_IN5, CMP_IM5
Default: PA6
Alternate: SPI0_MISO, I2S0_MCK, TIMER2_CH0,
PA6
9
TIMER0_BRKIN, TIMER15_CH0, EVENTOUT,
I/O
CMP_OUT
Additional: ADC_IN6
Default: PA7
Alternate: SPI0_MOSI, I2S0_SD, TIMER2_CH1,
PA7
10
TIMER13_CH0, TIMER0_CH0_ON, TIMER16_CH0,
I/O
EVENTOUT
Additional: ADC_IN7
Default: PB1
Alternate: TIMER2_CH3, TIMER13_CH0,
PB1
11
I/O
VSS
12
P
Default: VSS
VDD
13
P
Default: VDD
TIMER0_CH2_ON, SPI1_SCK(5)
Additional: ADC_IN9
Default: PA9
PA9(6)
14
I/O
5VT
Alternate: USART0_TX, TIMER0_CH1, I2C0_SCL,
CK_OUT
Default: PA10
PA10(6)
15
I/O
5VT
Alternate: USART0_RX, TIMER0_CH2,
TIMER16_BRKIN, I2C0_SDA
PA13
16
I/O
5VT
Default: PA13/SWDIO
Alternate: SWDIO, IFRP_OUT, SPI1_MISO(5)
Default: PA14/SWCLK
PA14
17
I/O
5VT
Alternate: USART0_TX(3), USART1_TX(4), SWCLK,
SPI1_MOSI(5)
BOOT0
18
I
Default: BOOT0
Notes:
29
GD32E230xx Datasheet
(1) Type: I = input, O = output, P = power.
(2) I/O Level: 5VT = 5 V tolerant.
(3) Functions are available on GD32E230F4 devices only.
(4) Functions are available on GD32E230F8/6 devices.
(5) Functions are available on GD32E230F8 devices only.
(6) Pin pair PA11/PA12 can be remapped instead of pin pair PA9/PA10 using
SYSCFG_CFG0 register. Table 2-10. Port A alternate functions summary shows
PA11/PA12 remap.
30
GD32E230xx Datasheet
2.6.7
GD32E230xx pin alternate functions
Table 2-10. Port A alternate functions summary
Pin
Name
AF0
AF1
AF2
AF3
USART0_CTS(1)
/USART1_CTS(2
PA0
AF4
AF5
AF6
I2C1_SCL(
CMP_
3)
OUT
)
USART0_RTS(1)
PA1
I2C1_SDA(
EVENTOUT /USART1_RTS(2
3)
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
_CH0_O
TIMER14_C USART0_TX(1)/
H0(3)
USART1_TX(2)
TIMER14_C USART0_RX(1)/
H1(3)
USART1_RX(2)
SPI0_NSS/I USART0_CK(1)/
2S0_WS
USART1_CK(2)
TIMER13_
SPI1_N
CH0
SS(3)
SPI0_SCK/I
2S0_CK
SPI0_MISO/
I2S0_MCK
SPI0_MOSI/
I2S0_SD
CK_OUT
TIMER14_B
RKIN(3)
TIMER16_B
RKIN
TIMER2_CH0
TIMER2_CH1
USART0_CK
USART0_TX
USART0_RX
TIMER0_BR
SWCLK
2S0_WS
CH0
0
OUT
TIMER0_CH
_CH0
OUT
X(2)
I2C0_SCL CK_OUT
1
TIMER0_CH
I2C0_SDA
2
TIMER0_CH
I2C0_SMB I2C1_SC SPI1_I CMP_
3
A
L(3)
O2(3)
RAME
A(3)
O3(3)
SPI1_M
ISO(3)
USART0_TX(1)/
SPI1_M
USART1_TX(2)
OSI(3)
USART1_RX(2)
OUT
I2C0_TXF I2C1_SD SPI1_I
IFRP_OUT
SPI0_NSS/I USART0_RX(1)/
OUT
TIMER0_CH EVENT USART1_T
USART0_RTS TIMER0_ETI
PA14
OUT
TIMER13_ TIMER16 EVENT
0_ON
PA12 EVENTOUT
SWDIO
_CH0
TIMER0_CH
USART0_CTS
PA13
TIMER15 EVENT CMP_
KIN
PA11 EVENTOUT
PA15
TIMER14
N(3)
)
PA2
AF7
EVENT
SPI1_N
OUT
SS(3)
31
GD32E230xx Datasheet
Table 2-11. Port B alternate functions summary
Pin
AF0
Name
PB0
PB1
EVENTOUT TIMER2_CH2
TIMER13_CH
0
PB2
PB3
AF1
TIMER2_CH3
SPI0_SCK/I2
S0_CK
SPI0_MISO
/I2S0_MCK
SPI0_MOSI
PB5
/I2S0_SD
TIMER2_CH1
PB7 USART0_RX
I2C0_SDA
PB8
I2C0_SCL
PB9
IFRP_OUT
USART1
1_ON
_RX(2)
AF5
AF6
TIMER0_CH
SPI1_S
2_ON
CK(3)
AF7
I2C0_SDA
TIMER15_B
RKIN
TIMER1
I2C0_TX
6_BRKI
FRAME
N
I2C0_SMBA
TIMER15_C
H0_ON
TIMER16_C
H0_ON
TIMER15_C
H0
TIMER16_C
H0
EVENTOUT
I2S0_M
SPI1_N
CK
SS(3)
I2C0_SCL(1)/I
PB10
PB11 EVENTOUT
PB15
TIMER0_CH
TIMER2_CH0 EVENTOUT
I2C0_SCL
PB14
AF4
EVENTOUT
PB6 USART0_TX
PB13
AF3
TIMER2_ETI
PB4
PB12
AF2
SPI0_NSS(1)
/SPI1_NSS(3)
SPI1_I SPI1_S
2C1_SCL(3)
O2(3)
I2C0_SDA(1)/I
SPI1_I
2C1_SDA(3)
O3(3)
EVENTOUT
TIMER0_BR
I2C1_SM
KIN
BA(3)
SPI0_SCK(1) I2C1_TXFRA TIMER0_CH
/SPI1_SCK(3)
ME(3)
I2C1_S
CL(3)
0_ON
SPI0_MISO(1) TIMER14_CH TIMER0_CH
/SPI1_MISO(3)
0(3)
CK(3)
I2C1_S
DA(3)
1_ON
SPI0_MOSI(1) TIMER14_CH TIMER0_CH TIMER14_CH
/SPI1_MOSI(3)
1(3)
2_ON
0_ON(3)
Table 2-12. Port F alternate functions summary
Pin
Name
AF0
PF0
AF2
AF3
AF4
AF5
AF6
I2C0_SDA
PF1
PF6
AF1
I2C0_SCL
I2C0_SCL(1
)/I2C1_SCL
32
GD32E230xx Datasheet
Pin
Name
AF0
AF1
AF2
AF3
AF4
AF5
AF6
(3)
I2C0_SDA(
PF7
1)/I2C1_SD
A(3)
Notes:
(1) Functions are available on GD32E230x4 devices only.
(2) Functions are available on GD32E230x8/6 devices.
(3) Functions are available on GD32E230x8 devices only.
33
GD32E230xx Datasheet
3
Functional description
3.1
ARM® Cortex®-M23 core
The Cortex-M23 processor is an energy-efficient processor with a very low gate count. It is
intended to be used for microcontroller and deeply embedded applications that require an
area-optimized processor. The processor is highly configurable enabling a wide range of
implementations from those requiring memory protection and powerful trace technology to
cost sensitive devices requiring minimal area, while delivering outstanding computational
performance and an advanced system response to interrupts.
32-bit ARM® Cortex®-M23 processor core
Up to 72 MHz operation frequency
Single-cycle multiplication and hardware divider
Ultra-low power, energy-efficient operation
Excellent code density
Integrated Nested Vectored Interrupt Controller (NVIC)
24-bit SysTick timer
The Cortex®-M23 processor is based on the ARMv8-M architecture and supports both Thumb
and Thumb-2 instruction sets. Some system peripherals listed below are also provided by
Cortex®-M23:
Internal Bus Matrix connected with AHB master, Serial Wire Debug Port and Single-cycle
IO port
3.2
Nested Vectored Interrupt Controller (NVIC)
Breakpoint Unit(BPU)
Data Watchpoint and Trace (DWT)
Serial Wire Debug Port
Embedded memory
Up to 64 Kbytes of Flash memory
Up to 8 Kbytes of SRAM with hardware parity checking
64 Kbytes of inner Flash and 8 Kbytes of inner SRAM at most is available for storing programs
and data, both accessed (R/W) at CPU clock speed with 0~2 wait states. Table 2-3.
GD32E230xx memory map shows the memory map of the GD32E230xx series of devices,
including code, SRAM, peripheral, and other pre-defined regions.
3.3
Clock, reset and supply management
Internal 8 MHz factory-trimmed RC and external 4 to 32 MHz crystal oscillator
34
GD32E230xx Datasheet
Internal 28 MHz RC oscillator
Internal 40 KHz RC calibrated oscillator and external 32.768 KHz crystal oscillator
Integrated system clock PLL
1.8 to 3.6 V application supply and I/Os
Supply Supervisor: POR (Power On Reset), PDR (Power Down Reset), and low voltage
detector (LVD)
The Clock Control Unit (CCU) provides a range of oscillator and clock functions. These
include speed internal RC oscillator and external crystal oscillator, high speed and low speed
two types. Several prescalers allow the frequency configuration of the AHB and two APB
domains. The maximum frequency of the AHB, APB2 and APB1 domains is 72 MHz/72
MHz/72 MHz. See Figure 2-8. GD32E230xx clock tree for details on the clock tree.
The Reset Control Unit (RCU) controls three kinds of reset: system reset resets the processor
core and peripheral IP components. Power-on reset (POR) and power-down reset (PDR) are
always active, and ensures proper operation starting from 1.71 V and down to 1.67 V. The
device remains in reset mode when VDD is below a specified threshold. The embedded low
voltage detector (LVD) monitors the power supply, compares it to the voltage threshold and
generates an interrupt as a warning message for leading the MCU into security.
Power supply schemes:
VDD range: 1.8 to 3.6 V, external power supply for I/Os and the internal regulator.
Provided externally through VDD pins.
VSSA, VDDA range: 1.8 to 3.6 V, external analog power supplies for ADC, reset blocks,
RCs and PLL. VDDA and VSSA must be connected to VDD and VSS, respectively.
VBAK range: 1.8 to 3.6 V, power supply for RTC, external clock 32 KHz oscillator and
backup registers (through power switch) when VDD is not present.
3.4
Boot modes
At startup, boot pins are used to select one of three boot options:
Boot from main Flash memory (default)
Boot from system memory
Boot from on-chip SRAM
In default condition, boot from main Flash memory is selected. The boot loader is located in
the internal boot ROM memory (system memory). It is used to reprogram the Flash memory
by using USART0 (PA9 and PA10) or USART1 (PA14 and PA15 or PA2 and PA3).
3.5
Power saving modes
The MCU supports three kinds of power saving modes to achieve even lower power
consumption. They are sleep mode, deep-sleep mode, and standby mode. These operating
modes reduce the power consumption and allow the application to achieve the best balance
35
GD32E230xx Datasheet
between the CPU operating time, speed and power consumption.
Sleep mode
In sleep mode, only the clock of CPU core is off. All peripherals continue to operate and
any interrupt/event can wake up the system.
Deep-sleep mode
In deep-sleep mode, all clocks in the 1.2V domain are off, and all of the high speed
crystal oscillator (IRC8M, HXTAL) and PLL are disabled. Only the contents of SRAM and
registers are retained. Any interrupt or wakeup event from EXTI lines can wake up the
system from the deep-sleep mode including the 16 external lines, the RTC alarm, RTC
tamper and timestamp, CMP output, LVD output and USART wakeup. When exiting the
deep-sleep mode, the IRC8M is selected as the system clock.
Standby mode
In standby mode, the whole 1.2V domain is power off, the LDO is shut down, and all of
IRC8M, HXTAL and PLL are disabled. The contents of SRAM and registers (except
backup registers) are lost. There are four wakeup sources for the standby mode,
including the external reset from NRST pin, the RTC alarm, the FWDGT reset, and the
rising edge on WKUP pin.
3.6
Analog to digital converter (ADC)
12-bit SAR ADC's conversion rate is up to 2 MSPS
12-bit, 10-bit, 8-bit or 6-bit configurable resolution
Hardware oversampling ratio adjustable from 2 to 256x improves resolution to 16-bit
Input voltage range: VSSA to VDDA
Temperature sensor
One 12-bit 2 MSPS multi-channel ADC is integrated in the device. It has a total of 12
multiplexed channels: up to 10 external channels, 1 channel for internal temperature sensor
(VSENSE) and 1 channel for internal reference voltage (VREFINT). The input voltage range is
between VSSA and VDDA. An on-chip hardware oversampling scheme improves performance
while off-loading the related computational burden from the CPU. An analog watchdog block
can be used to detect the channels, which are required to remain within a specific threshold
window. A configurable channel management block can be used to perform conversions in
single, continuous, scan or discontinuous mode to support more advanced use.
The ADC can be triggered from the events generated by the general level 0 timers (TIMERx)
and the advanced timer (TIMER0) with internal connection. The temperature sensor can be
used to generate a voltage that varies linearly with temperature. It is internally connected to
the ADC_IN16 input channel which is used to convert the sensor output voltage in a digital
value.
36
GD32E230xx Datasheet
3.7
DMA
5 channels DMA controller
Peripherals supported: Timers, ADC, SPIs, I2Cs, USARTs and I2S
The flexible general-purpose DMA controllers provide a hardware method of transferring data
between peripherals and/or memory without intervention from the CPU, thereby freeing up
bandwidth for other system functions. Three types of access method are supported:
peripheral to memory, memory to peripheral, memory to memory.
Each channel is connected to fixed hardware DMA requests. The priorities of DMA channel
requests are determined by software configuration and hardware channel number. Transfer
size of source and destination are independent and configurable.
3.8
General-purpose inputs/outputs (GPIOs)
Up to 39 fast GPIOs, all mappable on 16 external interrupt lines
Analog input/output configurable
Alternate function input/output configurable
There are up to 39 general purpose I/O pins (GPIO) in GD32E230xx, named PA0 ~ PA15 and
PB0 ~ PB15, PC13 ~ PC15, PF0 ~ PF1, PF6 ~ PF7 to implement logic input/output functions.
Each of the GPIO ports has related control and configuration registers to satisfy the
requirements of specific applications. The external interrupts on the GPIO pins of the device
have related control and configuration registers in the Interrupt/event controller (EXTI). The
GPIO ports are pin-shared with other alternative functions (AFs) to obtain maximum flexibility
on the package pins. Each of the GPIO pins can be configured by software as output (pushpull open-drain or analog), 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.
All GPIOs are high-current capable except for analog inputs.
3.9
Timers and PWM generation
One 16-bit advanced timer (TIMER0), up to five 16-bit general timers (TIMER2, TIMER13
~ TIMER16), and one 16-bit basic timer (TIMER5)
Up to 4 independent channels of PWM, output compare or input capture for each general
timer and external trigger input
16-bit, motor control PWM advanced timer with programmable dead-time generation for
output match
Encoder interface controller with two inputs using quadrature decoder
24-bit SysTick timer down counter
2 watchdog timers (free watchdog timer and window watchdog timer)
The advanced timer (TIMER0) can be used as a three-phase PWM multiplexed on 6 channels.
37
GD32E230xx Datasheet
It has complementary PWM outputs with programmable dead-time generation. It can also be
used as a complete general timer. The 4 independent channels can be used for input capture,
output compare, PWM generation (edge- or center- aligned counting modes) and single pulse
mode output. If configured as a general 16-bit timer, it has the same functions as the TIMERx
timer. It can be synchronized with external signals or to interconnect with other general timers
together which have the same architecture and features.
The general timer can be used for a variety of purposes including general time, input signal
pulse width measurement or output waveform generation such as a single pulse generation
or PWM output, up to 4 independent channels for input capture/output compare. TIMER2 is
based on a 16-bit auto-reload up/down counter and a 16-bit prescaler. TIMER13 ~ TIMER16
is based on a 16-bit auto-reload up counter and a 16-bit prescaler. The general timer also
supports an encoder interface with two inputs using quadrature decoder.
The basic timer, known as TIMER5 can also be used as a simple 16-bit time base.
The GD32E230xx have two watchdog peripherals, free watchdog and window watchdog.
They offer a combination of high safety level, flexibility of use and timing accuracy.
The free watchdog timer includes a 12-bit down-counting counter and an 8-bit prescaler. It is
clocked from an independent 40 KHz internal RC and as it operates independently of the
main clock, it can operate in deep-sleep 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.
The window watchdog is based on a 7-bit down counter 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 wakeup interrupt capability and the counter can be frozen in debug
mode.
The SysTick timer is dedicated for OS, but could also be used as a standard down counter.
The features are shown below:
3.10
A 24-bit down counter
Auto reload capability
Maskable system interrupt generation when the counter reaches 0
Programmable clock source
Real time clock (RTC)
Independent binary-coded decimal (BCD) format timer/counter with five 32-bit backup
registers.
Calendar with subsecond, second, minute, hour, week day, date, year and month
automatically correction
Alarm function with wake up from deep-sleep and standby mode capability
On-the-fly correction for synchronization with master clock. Digital calibration with 0.954
ppm resolution for compensation of quartz crystal inaccuracy.
38
GD32E230xx Datasheet
The real time clock is an independent timer which provides a set of continuously running
counters in backup registers to provide a real calendar function, and provides an alarm
interrupt or an expected interrupt. It is not reset by a system or power reset, or when the
device wakes up from standby mode. In the RTC unit, there are two prescalers used for
implementing the calendar and other functions. One prescaler is a 7-bit asynchronous
prescaler and the other is a 15-bit synchronous prescaler.
3.11
Inter-integrated circuit (I2C)
Up to two I2C bus interfaces can support both master and slave mode with a frequency
up to 1 MHz (Fast mode plus)
Provide arbitration function, optional PEC (packet error checking) generation and
checking
Supports 7-bit and 10-bit addressing mode and general call addressing mode
Supports SAM_V mode
The I2C interface is an internal circuit allowing communication with an external I2C interface
which is an industry standard two line serial interface used for connection to external
hardware. These two serial lines are known as a serial data line (SDA) and a serial clock line
(SCL). The I2C module provides different data transfer rates: up to 100 KHz in standard mode,
up to 400 KHz in the fast mode and up to 1 MHz in the fast mode plus. The I2C module also
has an arbitration detect function to prevent the situation where more than one master
attempts to transmit data to the I2C bus at the same time. A CRC-8 calculator is also provided
in I2C interface to perform packet error checking for I2C data.
3.12
Serial peripheral interface (SPI)
Up to two SPI interfaces with a frequency of up to 18 MHz
Support both master and slave mode
Hardware CRC calculation and transmit automatic CRC error checking
Separate transmit and receive 32-bit FIFO with DMA capability (only in SPI1)
Data frame size can be 4 to 16 bits (only in SPI1)
Quad-SPI configuration available in master mode (only in SPI1)
The SPI interface uses 4 pins, among which are the serial data input and output lines (MISO
& MOSI), the clock line (SCK) and the slave select line (NSS). Both SPIs can be served by
the DMA controller. The SPI interface may be used for a variety of purposes, including simplex
synchronous transfers on two lines with a possible bidirectional data line or reliable
communication using CRC checking. Specially, SPI1 has separate transmit and receive 32bit FIFO with DMA capability and its data frame size can be 4 to 16 bits. Quad-SPI master
mode is also supported in SPI1.
39
GD32E230xx Datasheet
3.13
Universal synchronous asynchronous receiver transmitter
(USART)
Up to two USARTs with operating frequency up to 4.5 MBits/s
Supports both asynchronous and clocked synchronous serial communication modes
IrDA SIR encoder and decoder support
LIN break generation and detection
ISO 7816-3 compliant smart card interface
The USART (USART0, USART1) are used to translate data between parallel and serial
interfaces, provides a flexible full duplex data exchange using synchronous or asynchronous
transfer. It is also commonly used for RS-232 standard communication. The USART includes
a programmable baud rate generator which is capable of dividing the system clock to produce
a dedicated clock for the USART transmitter and receiver. The USART also supports DMA
function for high speed data communication.
3.14
Inter-IC sound (I2S)
One I2S bus Interfaces with sampling frequency from 8 KHz to 192 KHz, multiplexed with
SPI0
Support either master or slave mode
The Inter-IC sound (I2S) bus provides a standard communication interface for digital audio
applications by 3-wire serial lines. GD32E230xx contain an I2S-bus interface that can be
operated with 16/32 bit resolution in master or slave mode, pin multiplexed with SPI0. The
audio sampling frequency from 8 KHz to 192 KHz is supported with less than 0.5% accuracy
error.
3.15
Comparators (CMP)
One fast rail-to-rail low-power comparators with software configurable
Programmable reference voltage (internal or external I/O)
One Comparator (CMP) is implemented within the devices. It can wake up from deep-sleep
mode to generate interrupts and breaks for the timers and also can be combined as a window
comparator. The internal voltage reference is also connected to ADC_IN17 input channel of
the ADC.
3.16
Debug mode
Serial wire debug port
40
GD32E230xx Datasheet
Debug capabilities can be accessed by a debug tool via Serial Wire (SW - Debug Port).
3.17
Package and operation temperature
LQFP48 (GD32E230CxTx), LQFP32 (GD32E230KxTx), QFN32 (GD32E230KxUx),
QFN28 (GD32E230GxUx), TSSOP20 (GD32E230FxPx) and LGA20 (GD32E230FxVx).
Operation temperature range: -40°C to +85°C (industrial level)
41
GD32E230xx Datasheet
4
Electrical characteristics
4.1
Absolute maximum ratings
The maximum ratings are the limits to which the device can be subjected without permanently
damaging the device. Note that the device is not guaranteed to operate properly at the
maximum ratings. Exposure to the absolute maximum rating conditions for extended periods
may affect device reliability.
Table 4-1. Absolute maximum ratings (1)(4)
Symbol
Min
Max
Unit
VSS - 0.3
VSS + 3.6
V
VSSA - 0.3
VSSA + 3.6
V
VSS - 0.3
VDD + 3.6
V
Input voltage on other I/O
VSS - 0.3
3.6
V
|ΔVDDx|
Variations between different VDD power pins
—
50
mV
|VSSX −VSS|
Variations between different ground pins
—
50
mV
IIO
Maximum current for GPIO pins
—
±25
mA
TA
Operating temperature range
-40
+85
°C
Power dissipation at TA = 85°C of LQFP48
—
574
Power dissipation at TA = 85°C of LQFP32
—
724
Power dissipation at TA = 85°C of QFN32
—
939
Power dissipation at TA = 85°C of QFN28
—
845
Power dissipation at TA = 85°C of TSSOP20
—
595
Power dissipation at TA = 85°C of LGA20
—
416
TSTG
Storage temperature range
-55
+150
°C
TJ
Maximum junction temperature
—
125
°C
VDD
VDDA
VIN
PD
(1)
(2)
(3)
(4)
4.2
Parameter
External voltage
range(2)
External analog supply voltage
Input voltage on 5V tolerant
pin(3)
mW
Guaranteed by design, not tested in production.
All main power and ground pins should be connected to an external power source within the allowable range.
VIN maximum value cannot exceed 6.5 V.
It is recommended that VDD and VDDA are powered by the same source. The maximum difference between VDD
and VDDA does not exceed 300 mV during power-up and operation.
Operating conditions characteristics
Table 4-2. DC operating conditions
Symbol
Parameter
Conditions
VDD
Supply voltage
—
VDDA
(1)
Analog supply voltage ADC not used
Analog supply voltage ADC used
—
Min(1) Typ Max(1) Unit
1.8
3.3
3.6
1.8
3.3
3.6
2.4
3.3
3.6
V
V
Based on characterization, not tested in production.
Figure 4-1. Recommended power supply decoupling capacitors(1) (2)
42
GD32E230xx Datasheet
N * VDD
4.7 μF + N * 100 nF
VSS
VDDA
1 μF
(1)
(2)
VSSA
10 nF
The VREF+ and VREF- pins are only available on no less than 100-pin packages, or else the VREF+ and VREF- pins
are not available and internally connected to VDDA and VSSA pins.
All decoupling capacitors need to be as close as possible to the pins on the PCB board.
Table 4-3. Clock frequency(1)
Symbol
Parameter
Conditions
Min
Max
Unit
fHCLK1
AHB1 clock frequency
—
0
72
MHz
fHCLK2
AHB2 clock frequency
—
0
72
MHz
fAPB1
APB1 clock frequency
—
0
72
MHz
fAPB2
APB2 clock frequency
—
0
72
MHz
Min
Max
Unit
0
∞
20
∞
(1)
Guaranteed by design, not tested in production.
Table 4-4. Operating conditions at Power up/ Power down(1)
Symbol
tVDD
(1)
Parameter
Conditions
VDD rise time rate
—
VDD fall time rate
μs /V
Guaranteed by design, not tested in production.
Table 4-5. Start-up timings of Operating conditions (1)
Symbol
Parameter
tstart-up
Start-up time
(1)
(2)
(3)
Conditions
Typ
Clock source from HXTAL
432
Clock source from IRC8M
76
Unit
μs
Based on characterization, not tested in production.
After power-up, the start-up time is the time between the rising edge of NRST high and the first I/O instruction
conversion in SystemInit function.
PLL is off.
Table 4-6. Power saving mode wakeup timings characteristics(1) (2)
Symbol
Parameter
Typ
tSleep
Wakeup from Sleep mode
3.5
Wakeup from Deep-sleep mode（LDO On）
17.1
Wakeup from Deep-sleep mode（LDO in low power mode）
17.1
Wakeup from Standby mode
77.5
tDeep-sleep
tStandby
(1)
(2)
Unit
μs
Based on characterization, not tested in production.
The wakeup time is measured from the wakeup event to the point at which the application code reads the first
43
GD32E230xx Datasheet
instruction under the below conditions: VDD = VDDA = 3.3 V, IRC8M = System clock = 8 MHz.
4.3
Power consumption
The power measurements specified in the tables represent that code with data executing from
on-chip Flash with the following specifications.
Table 4-7. Power consumption characteristics (2)(3)(4)
Symbol
Parameter
Conditions
Min
Typ(1) Max Unit
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 72 MHz, All peripherals
—
8.5
—
mA
—
5.4
—
mA
-—
6.2
-—
mA
—
4.2
—
mA
—
5.1
—
mA
-—
3.6
-—
mA
—
4.0
—
mA
—
2.9
—
mA
-—
3.2
-—
mA
—
2.5
—
mA
—
2.4
—
mA
-—
2.1
-—
mA
enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 72 MHz, All peripherals
disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 48 MHz, All peripherals
enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 48 MHz, All peripherals
disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 36 MHz, All peripherals
enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 36 MHz, All peripherals
IDD+IDDA
Supply current
disabled
(Run mode)
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 24 MHz, All peripherals
enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 24 MHz, All peripherals
disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 16 MHz, All peripherals
enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 16 MHz, All peripherals
disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 8 MHz, All peripherals
enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz,
System clock = 8 MHz, All peripherals
disabled
44
GD32E230xx Datasheet
Symbol
Parameter
Conditions
Min
Typ(1) Max Unit
VDD = VDDA = 3.3 V, HXTAL = 4 MHz,
System clock = 4 MHz, All peripherals
—
0.8
—
mA
—
0.6
—
mA
-—
0.6
-—
mA
—
0.5
—
mA
—
7.4
—
mA
—
3.7
—
mA
-—
5.5
-—
mA
—
3.1
—
mA
—
4.5
—
mA
-—
2.7
-—
mA
—
3.6
—
mA
—
2.4
—
mA
-—
3.0
-—
mA
—
2.1
—
mA
enabled
VDD = VDDA = 3.3 V, HXTAL = 4 MHz,
System clock = 4 MHz, All peripherals
disabled
VDD = VDDA = 3.3 V, HXTAL = 2 MHz,
System clock = 2 MHz, All peripherals
enabled
VDD = VDDA = 3.3 V, HXTAL = 2 MHz,
System clock = 2 MHz, All peripherals
disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 72 MHz, All
peripherals enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 72 MHz, All
peripherals disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 48 MHz, All
peripherals enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 48 MHz, All
peripherals disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 36 MHz, All
Supply current
peripherals enabled
(Sleep mode)
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 36 MHz, All
peripherals disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 24 MHz, All
peripherals enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 24 MHz, All
peripherals disabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 16 MHz, All
peripherals enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 16 MHz, All
peripherals disabled
45
GD32E230xx Datasheet
Symbol
Parameter
Conditions
Min
Typ(1) Max Unit
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 8 MHz, All
—
2.3
—
mA
-—
1.9
-—
mA
—
0.7
—
mA
—
0.5
—
mA
-—
0.5
-—
mA
—
0.4
—
mA
—
25.5
58
μA
—
12.3
58
μA
—
3.8
5.5
μA
—
3.6
5.5
μA
—
3.1
5.5
μA
—
1.6
5.5
μA
—
1.43
—
μA
—
1.36
—
μA
—
1.23
—
μA
—
1.15
—
μA
—
1.13
—
μA
—
1.06
—
μA
peripherals enabled
VDD = VDDA = 3.3 V, HXTAL = 8 MHz, CPU
clock off, System clock = 8 MHz, All
peripherals disabled
VDD = VDDA = 3.3 V, HXTAL = 4 MHz, CPU
clock off, System clock = 4 MHz, All
peripherals enabled
VDD = VDDA = 3.3 V, HXTAL = 4 MHz, CPU
clock off, System clock = 4 MHz, All
peripherals disabled
VDD = VDDA = 3.3 V, HXTAL = 2 MHz, CPU
clock off, System clock = 2 MHz, All
peripherals enabled
VDD = VDDA = 3.3 V, HXTAL = 2 MHz, CPU
clock off, System clock = 2 MHz, All
peripherals disabled
VDD = VDDA = 3.3 V, LDO in run mode,
Supply current
(Deep-sleep
mode)
IRC40K off, RTC off, All GPIOs analog
mode
VDD = VDDA = 3.3 V, LDO in low power
mode, IRC40K off, RTC off, All GPIOs
analog mode
VDD = VDDA = 3.3 V, LXTAL off, IRC40K on,
RTC on
VDD = VDDA = 3.3 V, LXTAL off, IRC40K on,
Supply current
RTC off
(Standby mode) VDD = VDDA = 3.3 V, LXTAL off, IRC40K off,
RTC off, VDDA Monitor on
VDD = VDDA = 3.3 V, LXTAL off, IRC40K off,
RTC off, VDDA Monitor off
VDD = VDDA = 3.6 V, LXTAL on with external
crystal, RTC on, Higher driving
VDD = VDDA = 3.3 V, LXTAL on with external
crystal, RTC on, Higher driving
VDD = VDDA = 2.5 V, LXTAL on with external
ILXTAL+RTC
LXTAL+RTC
crystal, RTC on, Higher driving
current
VDD = VDDA = 1.8 V, LXTAL on with external
crystal, RTC on, Higher driving
VDD = VDDA = 3.6 V, LXTAL on with external
crystal, RTC on, Medium High driving
VDD = VDDA = 3.3 V, LXTAL on with external
crystal, RTC on, Medium High driving
46
GD32E230xx Datasheet
Symbol
Parameter
Typ(1) Max Unit
Conditions
Min
VDD = VDDA = 2.5 V, LXTAL on with external
—
0.95
—
μA
—
0.86
—
μA
—
0.84
—
μA
—
0.76
—
μA
—
0.64
—
μA
—
0.56
—
μA
—
0.74
—
μA
—
0.67
—
μA
—
0.56
—
μA
—
0.47
—
μA
crystal, RTC on, Medium High driving
VDD = VDDA = 1.8 V, LXTAL on with external
crystal, RTC on, Medium High driving
VDD = VDDA = 3.6 V, LXTAL on with external
crystal, RTC on, Medium Low driving
VDD = VDDA = 3.3 V, LXTAL on with external
crystal, RTC on, Medium Low driving
VDD = VDDA = 2.5 V, LXTAL on with external
crystal, RTC on, Medium Low driving
VDD = VDDA = 1.8 V, LXTAL on with external
crystal, RTC on, Medium Low driving
VDD = VDDA = 3.6 V, LXTAL on with external
crystal, RTC on, Low driving
VDD = VDDA = 3.3 V, LXTAL on with external
crystal, RTC on, Low driving
VDD = VDDA = 2.5 V, LXTAL on with external
crystal, RTC on, Low driving
VDD = VDDA = 1.8 V, LXTAL on with external
crystal, RTC on, Low driving
(1)
(2)
(3)
(4)
Based on characterization, not tested in production.
When System Clock is less than 4 MHz, an external source is used, and the HXTAL bypass function is needed,
no PLL.
When System Clock is greater than 8 MHz, a crystal 8 MHz is used, and the HXTAL bypass function is closed,
using PLL.
When analog peripheral blocks such as ADCs, HXTAL, LXTAL, IRC8M, or IRC40K are ON, an additional power
consumption should be considered.
47
GD32E230xx Datasheet
Figure 4-2. Typical supply current consumption in Run mode
Figure 4-3. Typical supply current consumption in Sleep mode
48
GD32E230xx Datasheet
Table 4-8. Peripheral current consumption characteristics(1)
Peripherials(4)
APB1
APB2
AHB
(1)
(2)
(3)
(4)
4.4
Typical consumption at TA = 25 ℃
（TYP）
PMU
1.44
I2C1
1.38
I2C0
1.38
USART1
1.34
SPI1
1.37
WWDGT
1.32
TIMER13
1.36
TIMER5
0.17
TIMER2
0.23
DBGMCU
1.3
TIMER16
1.42
TIMER15
1.42
TIMER14
1.49
USART0
1.63
SPI0
1.38
TIMER0
1.68
ADC(2)
0.95
CFG & CMP(3)
1.27
GPIOF
1.31
GPIOC
1.31
GPIOB
1.34
GPIOA
1.34
CRC
0.16
DMA
0.15
Unit
mA
Based on characterization, not tested in production.
fADCCLK = IRC28M, ADCON bit is set to 1.
CMP enabled by setting CMPEN bit in CMP_CS，CMP mode is set to High Speed.
If there is no other description, then VDD = VDDA = 3.3 V, HXTAL = 8 MHz, system clock = fHCLK = 72 MHz, fAPB1
= fHCLK/2, fAPB2 = fHCLK, fADCCLK = fAPB2/2.
EMC characteristics
EMS (electromagnetic susceptibility) includes ESD (Electrostatic discharge, positive and
negative) and FTB (Burst of Fast Transient voltage, positive and negative) testing result is
given in Table 4-9. EMS characteristics(1), based on the EMS levels and classes compliant
with IEC 61000 series standard.
49
GD32E230xx Datasheet
Table 4-9. EMS characteristics(1)
Symbol
VESD
VFTB
(1)
Parameter
Voltage applied to all device pins to
induce a functional disturbance
Conditions
Level/Class
VDD = 3.3 V, TA = 25 °C,
LQFP48, fHCLK = 72 MHz
3A
conforms to IEC 61000-4-2
Fast transient voltage burst applied to
VDD = 3.3 V, TA = 25 °C,
induce a functional disturbance through
LQFP48, fHCLK = 72 MHz
100 pF on VDD and VSS pins
conforms to IEC 61000-4-4
4A
Based on characterization, not tested in production.
50
GD32E230xx Datasheet
4.5
Power supply supervisor characteristics
Table 4-10. Power supply supervisor characteristics (1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
LVDT[2:0] = 000, rising edge
—
2.11
—
V
LVDT[2:0] = 000, falling edge
—
2.01
—
V
LVDT[2:0] = 001, rising edge
—
2.25
—
V
LVDT[2:0] = 001, falling edge
—
2.16
—
V
LVDT[2:0] = 010, rising edge
—
2.39
—
V
LVDT[2:0] = 010, falling edge
—
2.29
—
V
LVDT[2:0] = 011, rising edge
—
2.52
—
V
Low Voltage Detector
LVDT[2:0] = 011, falling edge
—
2.43
—
V
Threshold
LVDT[2:0] = 100, rising edge
—
2.66
—
V
LVDT[2:0] = 100, falling edge
—
2.57
—
V
LVDT[2:0] = 101, rising edge
—
2.80
—
V
LVDT[2:0] = 101, falling edge
—
2.71
—
V
LVDT[2:0] = 110, rising edge
—
2.95
—
V
LVDT[2:0] = 110, falling edge
—
2.84
—
V
LVDT[2:0] = 111, rising edge
—
3.08
—
V
LVDT[2:0] = 111, falling edge
—
2.98
—
V
—
—
100
—
mV
—
1.71
—
V
—
1.67
—
V
VLVD(1)
VLVDhyst(2)
VPOR(1)
VPDR(1)
Power on reset
threshold
Power down reset
threshold
—
VPDRhyst(2)
PDR hysteresis
—
40
—
mV
tRSTTEMPO(2)
Reset temporization
—
2
—
ms
(1)
(2)
4.6
LVD hysteresis
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
Electrical sensitivity
The device is strained in order to determine its performance in terms of electrical sensitivity.
Electrostatic discharges (ESD) are applied directly to the pins of the sample. Static latch-up
51
GD32E230xx Datasheet
(LU) test is based on the two measurement methods.
Table 4-11. ESD characteristics (1)
Symbol
VESD(HBM)
VESD(CDM)
(1)
Parameter
Conditions
Electrostatic discharge
TA = 25 °C;
voltage (human body model)
JESD22-A114
Electrostatic discharge
TA = 25 °C;
voltage (charge device model)
JESD22-C101
Min
Typ
Max
Unit
—
—
6000
V
—
—
2000
V
Min
Typ
Max
Unit
—
—
±200
mA
—
—
5.4
V
Based on characterization, not tested in production.
Table 4-12. Static latch-up characteristics(1)
Symbol
Parameter
Conditions
I-test
LU
TA = 25 °C; JESD78
Vsupply over voltage
(1)
4.7
Based on characterization, not tested in production.
External clock characteristics
Table 4-13. High speed external clock (HXTAL) generated from a crystal/ceramic
characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fHXTAL(1)
Crystal or ceramic frequency
VDD = 3.3 V
4
8
32
MHz
RF(2)
Feedback resistor
VDD = 3.3 V
—
400
—
kΩ
CHXTAL(2) (3)
capacitance on OSCIN and
—
—
20
30
pF
Recommended matching
OSCOUT
Ducy(HXTAL)(2)
Crystal or ceramic duty cycle
—
30
50
70
%
gm(2)
Oscillator transconductance
Startup
—
25
—
mA/V
VDD = 3.3 V, TA = 25 °C
—
1.2
—
mA
Crystal or ceramic startup time VDD = 3.3 V, TA = 25 °C
—
1.8
—
ms
IDD(HXTAL) (1)
tSUHXTAL(1)
(1)
(2)
(3)
Crystal or ceramic operating
current
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
CHXTAL1 = CHXTAL2 = 2*(CLOAD - CS), For CHXTAL1 and CHXTAL2, it is recommended matching capacitance on OSCIN
and OSCOUT. For CLOAD, it is crystal/ceramic load capacitance, provided by the crystal or ceramic
manufacturer. For CS, it is PCB and MCU pin stray capacitance.
52
GD32E230xx Datasheet
Table 4-14. High speed external user clock characteristics (HXTAL in bypass mode)
Symbol
Parameter
External clock source or oscillator
fHXTAL_ext(1)
(1)
(2)
frequency
VHXTALH(2)
OSCIN input pin high level voltage
VHXTALL(2)
OSCIN input pin low level voltage
tH/L(HXTAL) (2)
OSCIN high or low time
tR/F(HXTAL)(2)
Conditions
Min
Typ
Max
Unit
VDD = 3.3 V
1
8
50
MHz
0.7 VDD —
VDD
VDD = 3.3 V
V
VSS
—
0.3 VDD
—
5
—
—
OSCIN rise or fall time
—
—
—
10
CIN(2)
OSCIN input capacitance
—
—
5
—
pF
Ducy(HXTAL) (2)
Duty cycle
—
30
50
70
%
ns
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
Table 4-15. Low speed external clock (LXTAL) generated from a crystal/ceramic
characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fLXTAL(1)
Crystal or ceramic frequency
VDD = 3.3 V
—
32.768
—
kHz
CLXTAL(2)(3)
capacitance on OSC32IN
—
—
10
—
pF
—
30
—
70
%
—
4
—
—
6
—
Recommended matching
and OSC32OUT
Ducy(LXTAL)
(2)
Crystal or ceramic duty cycle
Lower driving
capability
Medium low driving
gm(2)
Oscillator transconductance
capability
Medium high driving
capability
Higher driving
capability
Lower driving
capability
Medium low driving
IDDLXTAL
(1)
Crystal or ceramic operating
capability
current
Medium high driving
capability
Higher driving
capability
tSULXTAL(1)(4)
(1)
(2)
(3)
(4)
Crystal or ceramic startup
time
VDD = 3.3 V
μA/V
—
12
—
—
18
—
—
0.5
—
—
0.6
—
μA
—
1.0
—
—
1.2
—
—
1.8
—
s
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
CLXTAL1 = CLXTAL2 = 2*(CLOAD - CS), For CLXTAL1 and CLXTAL2, it is recommended matching capacitance on OSC32IN
and OSC32OUT. For CLOAD, it is crystal/ceramic load capacitance, provided by the crystal or ceramic
manufacturer. For CS, it is PCB and MCU pin stray capacitance.
tSULXTAL is the startup time measured from the moment it is enabled (by software) to the 32.768 kHz oscillator
stabilization flags is SET. This value varies significantly with the crystal manufacturer.
53
GD32E230xx Datasheet
Table 4-16. Low speed external user clock characteristics (LXTAL in bypass mode)
Symbol
Parameter
External clock source or
fLXTAL_ext(1)
oscillator frequency
Conditions
Min
Typ
Max
Unit
VDD = 3.3 V
—
32.768
1000
kHz
0.7 VDD
—
VDD
OSC32IN input pin high level
VLXTALH(2)
voltage
VDD = 3.3 V
OSC32IN input pin low level
VLXTALL(2)
voltage
tH/L(LXTAL) (2)
—
OSC32IN high or low time
V
VSS
—
0.3 VDD
450
—
—
ns
tR/F(LXTAL)
OSC32IN rise or fall time
—
—
—
50
OSC32IN input capacitance
—
—
5
—
pF
Duty cycle
—
30
50
70
%
Conditions
Min
Typ
Max
Unit
VDD = VDDA = 3.3 V
—
8
—
MHz
-4.0
—
+5.0
%
-2.0
—
+2.0
%
-1.0
—
+1.0
%
—
—
0.5
—
%
IRC8M oscillator duty cycle
VDD = VDDA = 3.3 V
45
50
55
%
IRC8M oscillator operating
VDD = VDDA = 3.3 V,
current
fIRC8M = 8 MHz
—
55
—
μA
IRC8M oscillator startup
VDD = VDDA = 3.3 V,
time
fIRC8M = 8 MHz
—
1.5
—
μs
(2)
CIN(2)
Ducy(LXTAL)
(1)
(2)
4.8
(2)
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
Internal clock characteristics
Table 4-17. High speed internal clock (IRC8M) characteristics
Symbol
Parameter
High Speed Internal
fIRC8M
Oscillator (IRC8M)
frequency
VDD = VDDA = 3.3 V,
TA = -40 °C ~ +85 °C
IRC8M oscillator Frequency
VDD = VDDA = 3.3 V,
accuracy, Factory-trimmed
TA = 0 °C ~ +85 °C
ACCIRC8M(1)
VDD = VDDA = 3.3 V,
TA = 25°C
IRC8M oscillator Frequency
accuracy, User trimming
step
DIRC8M(2)
IDDIRC8M(1)
tSUIRC8M(1)
(1)
(2)
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
54
GD32E230xx Datasheet
Table 4-18. Low speed internal clock (IRC40K) characteristics
Symbol
fIRC40K(1)
IDDIRC40K(2)
tSUIRC40K(2)
(1)
(2)
Parameter
Conditions
Low Speed Internal oscillator
VDD = VDDA = 3.3 V,
(IRC40K) frequency
TA = -40 °C ~ +85 °C
IRC40K oscillator operating
VDD = VDDA = 3.3 V,
current
TA = 25 °C
IRC40K oscillator startup
VDD = VDDA = 3.3 V,
time
TA = 25 °C
Min
Typ
Max
Unit
30
40
60
kHz
—
0.41
—
μA
—
33
—
μs
Guaranteed by design, not tested in production.
Based on characterization, not tested in production.
Table 4-19. High speed internal clock (IRC28M) characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDD = VDDA = 3.3 V
—
28
—
MHz
-4.0
—
+5.0
%
-3.0
—
+3.0
%
-2.0
—
+2.0
%
—
—
0.5
—
%
IRC28M oscillator duty cycle
VDD = VDDA = 3.3 V
45
50
55
%
IRC28M oscillator operating
VDD = VDDA = 3.3 V,
current
fIRC28M = 28 MHz
—
121
—
μA
IRC28M oscillator startup
VDD = VDDA = 3.3 V,
time
fIRC28M = 28 MHz
—
1.5
—
μs
High Speed Internal
fIRC28M
Oscillator (IRC28M)
frequency
VDD = VDDA = 3.3 V,
IRC28M oscillator
Frequency accuracy,
ACCIRC28M(1)
Factory-trimmed
TA = -40 °C ~ +85 °C
VDD = VDDA = 3.3 V,
TA = 0 °C ~ +85 °C
VDD = VDDA = 3.3 V
TA = 25 °C
IRC28M oscillator
Frequency accuracy, User
trimming step
DIRC28M(2)
IDDAIRC28M(1)
tSUIRC28M(1)
(1)
(2)
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
55
GD32E230xx Datasheet
4.9
PLL characteristics
Table 4-20. PLL characteristics
Symbol
fPLLIN
(1)
fPLLOUT
(2)
Parameter
Conditions
Min
Typ
Max
Unit
PLL input clock frequency
—
1
—
25
MHz
PLL output clock frequency
—
16
—
72
MHz
—
—
—
72
MHz
—
—
—
300
μs
VCO freq = 72 MHz
—
260
—
μA
—
50
—
PLL VCO output clock
fVCO(2)
frequency
tLOCK(2)
IDDA(1)
PLL lock time
Current consumption on
VDDA
Cycle to cycle Jitter
JitterPLL(3)
（rms）
System clock
Cycle to cycle Jitter
ps
—
（peak to peak）
(1)
(2)
(3)
4.10
—
500
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
Value given with main PLL running.
Memory characteristics
Table 4-21. Flash memory characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
TA = -40 °C ~ +85 °C
100
—
—
kcycles
Data retention time
10k cycles at TA = 85 °C
10
—
—
years
Number of guaranteed
PECYC(1)
program /erase cycles
before failure (Endurance)
tRET(1)
Word programming time
TA = -40 °C ~ + 85 °C
37
—
42
μs
tERASE(2)
Page erase time
TA = -40 °C ~ + 85 °C
3.2
—
4
ms
tMERASE(2)
Mass erase time
TA = -40 °C ~ + 85°C
8
—
10
ms
tPROG
(1)
(2)
4.11
(2)
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
NRST pin characteristics
Table 4-22. NRST pin characteristics
Symbol
VIL(NRST)
(1)
VIH(NRST)
(1)
Vhyst(1)
Rpu
(1)
(2)
(2)
Parameter
NRST Input low level voltage
NRST Input high level voltage
Conditions
1.8 V ≤ VDD = VDDA ≤
Schmidt trigger Voltage hysteresis
Pull-up equivalent resistor
3.6 V
—
Min
Typ
Max
Unit
-0.5
—
0.35 VDD
0.65 VDD
—
VDD + 0.5
—
400
—
mV
—
40
—
kΩ
V
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
56
GD32E230xx Datasheet
Figure 4-4. Recommended external NRST pin circuit
VDD
VDD
External reset circuit
RPU
10 kΩ
NRST
K
100 nF
GND
4.12
GPIO characteristics
Table 4-23. I/O port DC characteristics(1) (3)
Symbol
Parameter
Standard IO Low level input
VIL
voltage
5V-tolerant IO Low level
input voltage
Standard IO High level
VIH
input voltage
5 V-tolerant IO High level
input voltage
Low level output voltage
VOL
for an IO Pin
(IIO = +8 mA)
Low level output voltage
VOL
for an IO Pin
(IIO = +20 mA)
High level output voltage
VOH
for an IO Pin
(IIO = +8 mA)
High level output voltage
VOH
for an IO Pin
(IIO = +20 mA)
Conditions
Min
Typ
Max
Unit
1.8 V ≤ VDD = VDDA ≤ 3.6 V
—
—
0.3 VDD
V
1.8 V ≤ VDD = VDDA ≤ 3.6 V
—
—
0.3 VDD
V
1.8 V ≤ VDD = VDDA ≤ 3.6 V
0.7 VDD —
—
V
1.8 V ≤ VDD = VDDA ≤ 3.6 V
0.7 VDD —
—
V
VDD = 1.8 V
—
—
0.20
VDD = 2.5 V
—
—
0.20
VDD = 3.3 V
—
—
0.10
VDD = 3.6 V
—
—
0.10
VDD = 1.8 V
—
—
—
VDD = 2.5 V
—
—
0.50
VDD = 3.3 V
—
—
0.40
VDD = 3.6 V
—
—
0.40
VDD = 1.8 V
1.50
—
—
VDD = 2.5 V
2.30
—
—
VDD = 3.3 V
3.10
—
—
VDD = 3.6 V
3.40
—
—
VDD = 1.8 V
—
—
—
VDD = 2.5 V
1.90
—
—
VDD = 3.3 V
2.80
—
—
VDD = 3.6 V
3.10
—
—
V
V
V
V
57
GD32E230xx Datasheet
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
RPU(2)
Internal pull-up resistor
—
—
40
—
kΩ
RPD(2)
Internal pull-down resistor
—
—
40
—
kΩ
(1)
(2)
(3)
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
All pins except PC13 / PC14 / PC15. Since PC13 to PC15 are supplied through the Power Switch, which can
only be obtained by a small current, the speed of GPIOs PC13 to PC15 should not exceed 2 MHz when they
are in output mode(maximum load: 30 pF).
Table 4-24. I/O port AC characteristics(1) (2)
GPIOx_OSPD[1:0] bit value(3)
Parameter
GPIOx_OSPD0->OSPDy[1:0] = X0
Maximum
（IO_Speed = 2 MHz）
frequency(4)
GPIOx_OSPD0->OSPDy[1:0] = 01
Maximum
（IO_Speed = 10 MHz）
frequency(4)
GPIOx_OSPD0->OSPDy[1:0] = 11
Maximum
（IO_Speed = 50 MHz）
frequency(4)
(1)
(2)
(3)
(4)
Conditions
Max
1.8 ≤ VDD ≤ 3.6 V, CL = 10 pF
4
1.8 ≤ VDD ≤ 3.6 V, CL = 30 pF
3
1.8 ≤ VDD ≤ 3.6 V, CL = 50 pF
2
1.8 ≤ VDD ≤ 3.6 V, CL = 10 pF
24
1.8 ≤ VDD ≤ 3.6 V, CL = 30 pF
16
1.8 ≤ VDD ≤ 3.6 V, CL = 50 pF
14
1.8 ≤ VDD ≤ 3.6 V, CL = 10 pF
72
1.8 ≤ VDD ≤ 3.6 V, CL = 30 pF
72
1.8 ≤ VDD ≤ 3.6 V, CL = 50 pF
72
Unit
MHz
MHz
MHz
Based on characterization, not tested in production.
Unless otherwise specified, all test results given for TA = 25 ℃.
The I/O speed is configured using the GPIOx_OSPD0->OSPDy [1:0] bits. Refer to the GD32E230 user manual
which is selected to set the GPIO port output speed.
The maximum frequency is defined in 错误!未找到引用源。, and maximum frequency cannot exceed 72 MHz.
Figure 4-5. I/O port AC characteristics definition
90%
EXTERNAL
OUTPU T
ON 50pF
90%
50%
50%
10%
tr(IO)out
10%
tf(IO)out
T
If (tr + tf) ≤ 2/3 T, then maximum frequency is achieved .
The duty cycle is （45%-55%）when loaded by 50 pF
4.13
ADC characteristics
Table 4-25. ADC characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDA(1)
Operating voltage
—
2.4
3.3
3.6
V
VIN(1)
ADC input voltage range
—
0
—
VDDA
V
fADC(1)
ADC clock
—
0.1
—
28
MHz
fS(1)
Sampling rate
12-bit
0.007
—
2
58
GD32E230xx Datasheet
Symbol
VAIN1)
(2)
RAIN
RADC(2)
Parameter
Conditions
Min
Typ
Max
10-bit
0.008
—
2.3
8-bit
0.01
—
2.8
6-bit
0.011
—
3.5
Analog input voltage
10 external; 2 internal
0
—
VDDA
V
External input impedance
See Equation 1
—
—
50.6
kΩ
—
—
—
0.5
kΩ
—
—
4
pF
Input sampling switch
resistance
No pin/pad capacitance
MSP
S
CADC(2)
Input sampling capacitance
tCAL(2)
Calibration time
fADC = 28 MHz
—
4.68
—
μs
Sampling time
fADC = 28 MHz
0.05
—
8.55
μs
12-bit
—
14
—
10-bit
—
12
—
1/
8-bit
—
10
—
fADC
6-bit
—
8
—
—
—
—
1
(2)
ts
included
Total conversion
tCONV(2)
time(including sampling
time)
tSU(2)
(1)
(2)
Unit
Startup time
μs
Based on characterization, not tested in production.
Guaranteed by design, not tested in production.
Equation 1: RAIN max formula R AIN <
Ts
fADC ∗CADC ∗ln(2N+2 )
− R ADC
The formula above (Equation 1) is used to determine the maximum external impedance allowed for an
error below 1/4 of LSB. Here N = 12 (from 12-bit resolution).
Table 4-26. ADC RAIN max for fADC = 28 MHz(1)
(1)
Ts(cycles)
ts(μs)
RAINmax (kΩ)
1.5
0.05
0.88
7.5
0.27
6.40
13.5
0.48
11.90
28.5
1.02
25.70
41.5
1.48
37.70
55.5
1.98
50.60
71.5
2.55
NA
239.5
8.55
NA
Based on characterization, not tested in production.
59
GD32E230xx Datasheet
4.14
Temperature sensor characteristics
Table 4-27. Temperature sensor characteristics
Symbol
TL
(1)
Parameter
Min
Typ
Max
Unit
VSENSE linearity with temperature
—
±1.5
—
℃
Average slope
—
4.3
—
mV/℃
Voltage at 25 °C
—
1.45
—
V
ADC sampling time when reading the temperature
—
17.1
—
μs
Avg_Slope(1)
V25
(1)
(2)
tS_temp
(2)
(3)
4.15
Based on characterization, not tested in production.
Shortest sampling time can be determined in the application by multiple iterations.
Comparators characteristics
Table 4-28. CMP characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDA
Operating voltage
—
1.8
3.3
3.6
V
VIN
Input voltage range
—
0
—
VDDA
V
VBG
Scaler input voltage
—
—
1.2
—
V
VSC
Scaler offset voltage
—
—
—
—
mV
Ultra low power mode
—
0.98
—
μs
Low power mode
—
0.25
—
μs
Medium power mode
—
0.12
—
μs
High speed power mode
—
33
—
ns
Ultra low power mode
—
—
—
μs
Low power mode
—
—
—
μs
Medium power mode
—
—
—
μs
High speed power mode
—
—
—
ns
Ultra low power mode
—
2.2
—
Low power mode
—
3.2
—
Medium power mode
—
8.1
—
High speed power mode
—
46.9
—
—
—
±4
—
No Hysteresis
—
0
—
Low Hysteresis
—
11
—
Medium Hysteresis
—
22
—
High Hysteresis
—
43
—
Propagation delay for 200
mV step with 100 mV
overdrive
tD
Propagation delay for full
range step with 100 mV
overdrive
IDD
Voffset
Vhyst
(1)
Current consumption
Offset error
Hysteresis Voltage
μA
mV
mV
Based on characterization, not tested in production.
60
GD32E230xx Datasheet
4.16
TIMER characteristics
Table 4-29. TIMER characteristics (1)
Symbol
Parameter
tres
Timer resolution time
fEXT
RES
Conditions
Min
Max
Unit
—
1
—
tTIMERxCLK
fTIMERxCLK = 72 MHz
13.9
—
ns
Timer external clock
—
0
fTIMERxCLK/2
MHz
frequency
fTIMERxCLK = 72 MHz
0
36
MHz
Timer resolution
—
—
16
bit
—
1
65536
tTIMERxCLK
fTIMERxCLK = 72 MHz
0.0139
910
μs
—
—
fTIMERxCLK = 72 MHz
—
16-bit counter clock period
tCOUNTER
when internal clock is
selected
tMAX_COUNT
(1)
4.17
Maximum possible count
65536 × 65536 tTIMERxCLK
59.6
s
Guaranteed by design, not tested in production.
I2C characteristics
Table 4-30. I2C characteristics (1)(2)(3)
Symbol
mode
Fast mode
Fast mode
plus
Unit
Min
Max
Min
Max
Min
Max
SCL clock high time
—
4.0
—
0.6
—
0.2
—
μs
tSCL(L)
SCL clock low time
—
4.7
—
1.3
—
0.5
—
μs
tsu(SDA)
SDA setup time
—
2
—
0.8
—
0.1
—
μs
th(SDA)
SDA data hold time
—
250
—
250
—
130
—
ns
SDA and SCL rise
—
—
1000
20
300
—
120
ns
4
300
4
300
4
120
ns
4.0
—
0.6
—
0.26
—
μs
tf(SDA/SCL)
th(STA)
(3)
ons
Standard
tSCL(H)
tr(SDA/SCL)
(1)
(2)
Parameter
Conditi
time
SDA and SCL fall
—
time
Start condition hold
time
—
Guaranteed by design, not tested in production.
To ensure the standard mode I2C frequency, fPCLK1 must be at least 2 MHz, To ensure the fast mode I2C
frequency, fPCLK1 must be at least 4 MHz. To ensure the fast mode plus I2C frequency, fPCLK1 must be at least a
multiple of 10 MHz.
The device should provide a data hold time of 300 ns at least in order to bridge the undefined region of the
falling edge of SCL.
61
GD32E230xx Datasheet
4.18
SPI characteristics
Table 4-31. Standard SPI characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fSCK
SCK clock frequency
—
—
—
18
MHz
tsck(H)
SCK clock high time
25
27
29
ns
tsck (L)
SCK clock low time
25
27
29
ns
Master mode, fPCLKx = 72 MHz,
presc = 4
Master mode, fPCLKx = 72 MHz,
presc = 4
SPI master mode
tV(MO)
Data output valid time
—
—
—
2
ns
tSU(MI)
Data input setup time
—
5
—
—
ns
tH(MI)
Data input hold time
—
5
—
—
ns
SPI slave mode
(1)
tSU(NSS)
NSS enable setup time
—
0
—
—
ns
tH(NSS)
NSS enable hold time
—
1
—
—
ns
tA(SO)
Data output access time
—
—
7
—
ns
tDIS(SO)
Data output disable time
—
—
8
—
ns
tV(SO)
Data output valid time
—
—
10
—
ns
tSU(SI)
Data input setup time
—
—
10
—
ns
tH(SI)
Data input hold time
—
0
—
—
ns
Based on characterization, not tested in production.
62
GD32E230xx Datasheet
4.19
I2S characteristics
Table 4-32. I2S characteristics(1)
Symbol
Parameter
fCK
Clock frequency
Conditions
Master mode (data: 16 bits,
Audio frequency = 96 kHz)
Slave mode
Typ
Max
Unit
—
3.12
—
—
10
—
—
160
—
ns
—
160
—
ns
MHz
tH
Clock high time
tL
Clock low time
tV(WS)
WS valid time
Master mode
—
3
—
ns
tH(WS)
WS hold time
Master mode
—
3
—
ns
tSU(WS)
WS setup time
Slave mode
0
—
—
ns
tH(WS)
WS hold time
Slave mode
3
—
—
ns
Slave mode
—
50
—
%
Ducy(sck)
—
I2S slave input clock duty
cycle
tSU(SD_MR)
Data input setup time
Master mode
0
—
—
ns
tsu(SD_SR)
Data input setup time
Slave mode
0
—
—
ns
Master receiver
2
—
—
ns
Slave receiver
2
—
—
ns
—
12
—
ns
—
10
—
ns
—
10
—
ns
—
7
—
ns
tH(SD_MR)
tH(SD_SR)
(1)
4.20
Min
Data input hold time
tv(SD_ST)
Data output valid time
th(SD_ST)
Data output hold time
tv(SD_MT)
Data output valid time
th(SD_MT)
Data output hold time
Slave transmitter
(after enable edge)
Slave transmitter
(after enable edge)
Master transmitter
(after enable edge)
Master transmitter
(after enable edge)
Based on characterization, not tested in production.
USART characteristics
Table 4-33. USART characteristics (1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fSCK
SCK clock frequency
—
—
—
36
MHz
tSCK(H)
SCK clock high time
—
13.5
—
—
ns
tSCK(L)
SCK clock low time
—
13.5
—
—
ns
(1)
Guaranteed by design, not tested in production.
63
GD32E230xx Datasheet
4.21
WDGT characteristics
Table 4-34. FWDGT min/max timeout period at 40 kHz (IRC40K)(1)
Prescaler divider
PR[2:0] bits
1/4
(1)
Min timeout RLD[11:0]= Max timeout RLD[11:0]=
0x000
0xFFF
000
0.1
409.6
1/8
001
0.2
819.2
1/16
010
0.4
1638.4
1/32
011
0.8
3276.8
1/64
100
1.6
6553.6
1/128
101
3.2
13107.2
1/256
110 or 111
6.4
26214.4
Unit
ms
Guaranteed by design, not tested in production.
Table 4-35. WWDGT min-max timeout value at 72 MHz (fPCLK1)(1)
PSC[2:0]
1/1
00
56.9
1/2
01
113.8
1/4
10
227.6
1/8
11
455.2
(1)
4.22
Min timeout value
Prescaler divider
CNT[6:0] = 0x40
Unit
Max timeout value
CNT[6:0] = 0x7F
Unit
3.64
μs
7.28
14.56
ms
29.12
Guaranteed by design, not tested in production.
Parameter conditions
Unless otherwise specified, all values given for VDD = VDDA = 3.3 V, TA = 25 ℃.
64
GD32E230xx Datasheet
5
Package information
5.1
LQFP48 package outline dimensions
Figure 5-1. LQFP48 package outline
65
GD32E230xx Datasheet
Table 5-1. LQFP48 package dimensions
Symbol
Min
Typ
Max
A
—
—
1.60
A1
0.05
—
0.15
A2
1.35
1.40
1.45
A3
0.59
0.64
0.69
b
0.18
—
0.26
b1
0.17
0.20
0.23
c
0.13
—
0.17
c1
0.12
0.13
0.14
D
8.80
9.00
9.20
D1
6.90
7.00
7.10
E
8.80
9.00
9.20
eB
8.10
—
8.25
E1
6.90
7.00
7.10
e
L
0.50 BSC
0.45
L1
θ
—
0.75
1.00 REF
0
—
7°
(Original dimensions are in millimeters)
66
GD32E230xx Datasheet
5.2
LQFP32 package outline dimensions
Figure 5-2. LQFP32 package outline
67
GD32E230xx Datasheet
Table 5-2. LQFP32 package dimensions
Symbol
Min
Typ
Max
A
—
—
1.60
A1
0.05
—
0.15
A2
1.35
1.40
1.45
A3
0.59
0.64
0.69
b
0.32
—
0.43
b1
0.31
0.35
0.39
c
0.13
—
0.18
c1
0.12
0.13
0.14
D
8.80
9.00
9.20
D1
6.90
7.00
7.10
E
8.80
9.00
9.20
E1
6.90
7.00
7.10
θ
0°
—
7°
L
0.45
—
0.75
L1
eB
1.00 BSC
8.10
e
—
8.25
0.80 BSC
(Original dimensions are in millimeters)
68
GD32E230xx Datasheet
5.3
QFN32 package outline dimensions
Figure 5-3. QFN32 package outline
Table 5-3. QFN32 package dimensions
Symbol
Min
Typ
Max
A
0.70
0.75
0.80
A1
—
0.02
0.05
D
4.90
5.00
5.10
D2
3.40
3.50
3.60
E
4.90
5.00
5.10
E1
3.40
3.50
3.60
b
0.18
0.25
0.30
c
0.18
0.20
0.25
e
0.50 BSC
Ne
3.50 BSC
L
0.35
0.40
0.45
h
0.30
0.35
0.40
(Original dimensions are in millimeters)
69
GD32E230xx Datasheet
5.4
QFN28 package outline dimensions
Figure 5-4. QFN28 package outline
Table 5-4. QFN28 package dimensions
Symbol
Min
Typ
Max
A
0.70
0.75
0.80
A1
0
0.02
0.05
b
0.15
0.20
0.25
b1
0.14 REF
c
0.18
0.20
0.25
D
3.90
4.00
4.10
D2
2.70
2.80
2.90
E
3.90
4.00
4.10
E2
2.70
2.80
2.90
e
0.40 BSC
Ne
2.40 BSC
Nd
2.40 BSC
L
0.25
0.35
0.45
h
0.30
0.35
0.40
(Original dimensions are in millimeters)
70
GD32E230xx Datasheet
5.5
TSSOP20 package outline dimensions
Figure 5-5. TSSOP20 package outline
Table 5-5. TSSOP20 package dimensions
Symbol
Min
Typ
Max
A
—
—
1.20
A1
0.05
—
0.15
A2
0.80
1.00
1.05
A3
0.39
0.44
0.49
b
0.20
—
0.29
b1
0.19
0.22
0.25
c
0.13
—
0.18
c1
0.12
0.13
0.14
D
6.40
6.50
6.60
E1
4.30
4.40
4.50
E
6.20
6.40
6.60
e
0.65 BSC
L
0.45
0.60
0.75
θ
0°
—
8°
(Original dimensions are in millimeters)
71
GD32E230xx Datasheet
5.6
LGA20 package outline dimensions
Figure 5-6. LGA20 package outline
Table 5-6. LGA20 package dimensions
Symbol
Min
Typ
Max
A
0.51
0.56
0.61
A1
—
0.015
0.022
A2
0.35
0.40
0.45
c
0.13
0.16
0.19
D
2.90
3.00
3.10
D1
1.95
2.00
2.05
E
2.90
3.00
3.10
E1
1.95
2.00
2.05
e
0.50 BSC
L1
0.50
0.55
0.60
L2
0.30
0.35
0.40
L3
L4
0.200 REF
0.30
0.35
L5
0.125 REF
L6
0.234 REF
L7
0.050 REF
R1
0.125 REF
K1
0.375 REF
K2
0.375 REF
b
0.20
0.25
0.40
0.30
72
GD32E230xx Datasheet
Symbol
Min
Typ
Max
aaa
0.100
ccc
0.080
(Original dimensions are in millimeters)
5.7
Thermal characteristics
Thermal resistance is used to characterize the thermal performance of the package device,
which is represented by the Greek letter “Θ”. For semiconductor devices, thermal resistance
represents the steady-state temperature rise of the chip junction due to the heat dissipated
on the chip surface.
ΘJA: Thermal resistance, junction-to-ambient.
ΘJB: Thermal resistance, junction-to-board.
ΘJC: Thermal resistance, junction-to-case.
ΨJB: Thermal characterization parameter, junction-to-board.
ΨJT: Thermal characterization parameter, junction-to-top center.
ΘJA = (TJ - TA)/PD
ΘJB = (TJ – TB)/PD
ΘJC = (TJ – TC)/PD
Where, TJ = Junction temperature.
TA = Ambient temperature
TB = Board temperature
TC = Case temperature which is monitoring on package surface
PD = Total power dissipation
ΘJA represents the resistance of the heat flows from the heating junction to ambient air. It is
an indicator of package heat dissipation capability. Lower ΘJA can be considerate as better
overall thermal performance. ΘJA is generally used to estimate junction temperature.
ΘJB is used to measure the heat flow resistance between the chip surface and the PCB board.
ΘJC represents the thermal resistance between the chip surface and the package top case.
ΘJC is mainly used to estimate the heat dissipation of the system (using heat sink or other
heat dissipation methods outside the device package).
Table 5-7. Package thermal characteristics(1)
Symbol
ΘJA
ΘJB
Condition
Package
Value
LQFP48
69.64
LQFP32
55.26
TA = 85°C, Natural convection, 2S2P
QFN32
42.58
PCB
QFN28
47.32
TSSOP20
67.24
LGA20
96.08
LQFP48
43.16
LQFP32
26.24
QFN32
12.22
TA = 25°C, Cold plate, 2S2P PCB
Unit
°C/W
°C/W
73
GD32E230xx Datasheet
Symbol
ΘJC
ΨJB
ΨJT
Condition
Package
Value
QFN28
12.97
TSSOP20
37.72
LGA20
58.46
LQFP48
25.36
LQFP32
25.23
QFN32
16.76
QFN28
20.26
TSSOP20
25.06
LGA20
31.54
LQFP48
47.75
LQFP32
32.03
TA = 85°C, Natural convection, 2S2P
QFN32
12.81
PCB
QFN28
13.07
TSSOP20
49.07
LGA20
58.61
LQFP48
2.45
LQFP32
2.06
TA = 85°C, Natural convection, 2S2P
QFN32
0.69
PCB
QFN28
0.75
TSSOP20
2.37
LGA20
1.83
TA = 25°C, Cold plate, 2S2P PCB
Unit
°C/W
°C/W
°C/W
(1). Thermal characteristics are based on simulation, and meet JEDEC specification.
74
GD32E230xx Datasheet
6
Ordering information
Table 6-1. Part ordering code for GD32E230xx devices
Ordering code
Flash (KB)
Package
Package type
GD32E230F4P6
16
TSSOP20
Green
GD32E230F6P6
32
TSSOP20
Green
GD32E230F8P6
64
TSSOP20
Green
GD32E230F4V6
16
LGA20
Green
GD32E230F6V6
32
LGA20
Green
GD32E230F8V6
64
LGA20
Green
GD32E230G4U6
16
QFN28
Green
GD32E230G6U6
32
QFN28
Green
GD32E230G8U6
64
QFN28
Green
GD32E230K4U6
16
QFN32
Green
GD32E230K6U6
32
QFN32
Green
GD32E230K8U6
64
QFN32
Green
GD32E230K4T6
16
LQFP32
Green
GD32E230K6T6
32
LQFP32
Green
GD32E230K8T6
64
LQFP32
Green
GD32E230C4T6
16
LQFP48
Green
GD32E230C6T6
32
LQFP48
Green
GD32E230C8T6
64
LQFP48
Green
Temperature
operating range
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
Industrial
-40 °C to +85 °C
75
GD32E230xx Datasheet
7
Revision history
Table 7-1. Revision history
Revision No.
Description
Date
1.0
Initial Release
Oct.10, 2018
1.1
Add information about the QFN20 package
Dec.7, 2018
1.2
Delete QFN20 package, add information about the LGA20
package and electrical characteristics with few changes.
Dec.28, 2018
1. Modify PA13 and PA14 pin definitions in chapter2.6.
2. Modify PA9 and PB2 alternate functions in chapter2.6.2.
3. Add USART1(PA2 and PA3) to reprogram the flash
memory in chapter3.4.
1.3
4. Modify description of debug mode.
Oct.8, 2019
5. Modify block diagram.
6. Modify the value of POR and PDR in chapter3.3.
7. Update electrical characteristics, package information,
ordering information and logo.
1. Modify GD32E230K6T6 SRAM capacity form 4K to 6K.
1.4
2. Add thermal characteristics.
June.29, 2020
3. Update electrical characteristics.
76
GD32E230xx Datasheet
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