N.

Name

Type

Function(1)

42

OUT1

Power

Phase 1 high-side (floating) common voltage

43

GHS1

Analog Out

Phase 1 high-side driver output

44

PA8

I/O – FT_f

MCO, I2C2_SDA, I2S2_MCK, USART1_CK, TIM4_ETR, SAI1_CK2,

SAI1_SCK_A, EVENTOUT

45

PA9

I/O – FT_fd

I2C2_SCL, I2S3_MCK, USART1_TX, TIM15_BKIN, TIM2_CH3,

SAI1_FS_A, EVENTOUT, UCPD1_DBCC1

46

PA10

I/O – FT_da

TIM17_BKIN, USB_CRS_SYNC, I2C2_SMBA, SPI2_MISO, USART1_RX,

TIM2_CH4, TIM8_BKIN, SAI1_D1, SAI1_SD_A, EVENTOUT,

UCPD1_DBCC2

47

PA11

I/O – FT_u

SPI2_MOSI/I2S2_SD, USART1_CTS, COMP1_OUT, FDCAN1_RX,

TIM4_CH1, EVENTOUT, USB_DM

48

PA12

I/O – FT_u

TIM16_CH1, I2SCKIN, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX,

TIM4_CH2, EVENTOUT, USB_DP

49

PA13 (2)

I/O – FT_f

SWDIO-JTMS, TIM16_CH1N, I2C1_SCL, IR_OUT, USART3_CTS,

TIM4_CH3, SAI1_SD_B, EVENTOUT

50

PA14(2)

I/O – FT_f

SWCLK-JTCK, LPTIM1_OUT, I2C1_SDA, TIM8_CH2, USART2_TX,

SAI1_FS_B, EVENTOUT

51

PA15(2)

I/O – FT_f

JTDI, TIM2_CH1, TIM8_CH1, I2C1_SCL, SPI1_NSS, SPI3_NSS/

I2S3_WS, USART2_RX, UART4_RTS_DE, TIM2_ETR, EVENTOUT

52

SCREF

Analog In

Set the threshold voltage of the short-circuit protection.

If the voltage pin is higher than VSCREF,dis threshold, the short-circuit

protection is disabled.

53

PD2

I/O – FT

TIM3_ETR, TIM8_BKIN, EVENTOUT

54

PB3(2)

I/O – FT

JTDO-TRACESWO, TIM2_CH2, TIM4_ETR, USB_CRS_SYNC,

TIM8_CH1N, SPI1_SCK, SPI3_SCK/I2S3_CK, USART2_TX, TIM3_ETR,

SAI1_SCK_B, EVENTOUT

55

PB4(2)

I/O – FT_c

JTRST, TIM16_CH1, TIM3_CH1, TIM8_CH2N, SPI1_MISO, SPI3_MISO,

USART2_RX, TIM17_BKIN, SAI1_MCLK_B, EVENTOUT, UCPD1_CC2

56

PB5

I/O – FT_f

TIM16_BKIN, TIM3_CH2, TIM8_CH3N, I2C1_SMBA, SPI1_MOSI,

SPI3_MOSI/I2S3_SD, USART2_CK, TIM17_CH1, LPTIM1_IN1,

SAI1_SD_B, EVENTOUT

57

PB6

I/O – FT_c

TIM16_CH1N, TIM4_CH1, TIM8_CH1, TIM8_ETR, USART1_TX,

COMP4_OUT, TIM8_BKIN2, LPTIM1_ETR, SAI1_FS_B, EVENTOUT,

UCPD1_CC1

58

PB7

I/O – FT_f

TIM17_CH1N, TIM4_CH2, I2C1_SDA, TIM8_BKIN, USART1_RX,

COMP3_OUT, TIM3_CH4, LPTIM1_IN2, UART4_CTS, EVENTOUT,

PVD_IN

59

PB8(3)

I/O – FT_f

MCU PB8-BOOT0

TIM16_CH1, TIM4_CH3, SAI1_CK1, I2C1_SCL, USART3_RX,

COMP1_OUT, FDCAN1_RX, TIM8_CH2, SAI1_MCLK_A, EVENTOUT

60

PB9

I/O – FT_f

TIM17_CH1, TIM4_CH4, SAI1_D2, I2C1_SDA, IR_OUT, USART3_TX,

COMP2_OUT, FDCAN1_TX, TIM8_CH3, SAI1_FS_A, EVENTOUT

61

VM

Power

Power supply voltage (Motor supply voltage)

62

SW

Power

Buck regulator switching output

63

VCC

Power

Gate driver supply voltage

64

REGIN

Power

3.3 V LDO regulator input

EPAD

VSS

Power

Control logic ground

1. Alternate and additional functions for MCU GPIOs. Refer to STM32G431VBx3 MCU documentation for more details.

2. After reset, these pins are configured as JTAG/SW debug alternate functions, and the internal pull-up on PA15, PA13, PB4

pins and the internal pull-down on PA14 pin are activated.

STSPIN32G4

Pin description

DS13630 - Rev 1

page 13/48