Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 128KB LQFP

Pinouts and pin description STM32L431xx

64/200 DocID028800 Rev 1

Table 15. Alternate function AF0 to AF7 (for AF8 to AF15 see Table 16)

Port

AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7

SYS_AF

TIM1/TIM2/

LPTIM1

TIM1/TIM2 USART2 I2C1/I2C2/I2C3 SPI1/SPI2 SPI3

USART1/

USART2/

USART3

Port A

PA0-TIM2_CH1-----USART2_CTS

PA1 - TIM2_CH2 - - I2C1_SMBA SPI1_SCK -

USART2_RTS_

PA2-TIM2_CH3-----USART2_TX

PA3-TIM2_CH4-----USART2_RX

PA4 - - - - - SPI1_NSS SPI3_NSS USART2_CK

PA5 - TIM2_CH1 TIM2_ETR - - SPI1_SCK - -

PA6 - TIM1_BKIN - - - SPI1_MISO COMP1_OUT USART3_CTS

PA7 - TIM1_CH1N - - I2C3_SCL SPI1_MOSI - -

PA8MCOTIM1_CH1-----USART1_CK

PA9 - TIM1_CH2 - - I2C1_SCL - - USART1_TX

PA10 - TIM1_CH3 - - I2C1_SDA - - USART1_RX

PA11 - TIM1_CH4 TIM1_BKIN2 - - SPI1_MISO COMP1_OUT USART1_CTS

PA12 - TIM1_ETR - - - SPI1_MOSI -

USART1_RTS_

PA13JTMS-SWDIOIR_OUT------

PA14 JTCK-SWCLK LPTIM1_OUT - - I2C1_SMBA - - -

PA15 JTDI TIM2_CH1 TIM2_ETR USART2_RX - SPI1_NSS SPI3_NSS

USART3_RTS_

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