Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 128KB UFQFPN

Pin descriptions STM32L071xx

48/144 DS10690 Rev 6

Table 16. Alternate functions port A

Port

AF0AF1AF2AF3AF4AF5AF6AF7

SPI1/SPI2/I2S2/U

SART1/2/

LPUART1/LPTIM

TIM2/21/22/

EVENTOUT/

SYS_AF

SPI1/SPI2/I2S2/I2

C1/TIM2/21

SPI1/SPI2/I2S2/L

PUART1/

USART5/LPTIM1/

TIM2/3/EVENTOU

SYS_AF

I2C1/

EVENTOUT

I2C1/USART1/2/L

PUART1/

TIM3/22/

EVENTOUT

SPI2/I2S2/I2C2/

USART1/

TIM2/21/22

I2C1/2/

LPUART1/

USART4/

UASRT5/TIM21/

EVENTOUT

I2C3/LPUART1/

COMP1/2/

TIM3

Port A

PA0 - - TIM2_CH1 USART2_CTS TIM2_ETR USART4_TX COMP1_OUT

PA1 EVENTOUT TIM2_CH2

USART2_RTS/

USART2_DE

TIM21_ETR USART4_RX -

PA2 TIM21_CH1 TIM2_CH3 USART2_TX - LPUART1_TX COMP2_OUT

PA3 TIM21_CH2 TIM2_CH4 USART2_RX - LPUART1_RX -

PA4 SPI1_NSS - - USART2_CK TIM22_ETR - -

PA5 SPI1_SCK - TIM2_ETR TIM2_CH1 - -

PA6 SPI1_MISO TIM3_CH1 LPUART1_CTS TIM22_CH1 EVENTOUT COMP1_OUT

PA7 SPI1_MOSI TIM3_CH2 - TIM22_CH2 EVENTOUT COMP2_OUT

PA8 MCO EVENTOUT USART1_CK - - I2C3_SCL

PA9 MCO - USART1_TX - I2C1_SCL I2C3_SMBA

PA10 - - USART1_RX - I2C1_SDA -

PA11 SPI1_MISO - EVENTOUT USART1_CTS - - COMP1_OUT

PA12 SPI1_MOSI - EVENTOUT

USART1_RTS/

USART1_DE

- - COMP2_OUT

PA13 SWDIO - - - - LPUART1_RX -

PA14 SWCLK - - - USART2_TX - LPUART1_TX -

PA15 SPI1_NSS TIM2_ETR EVENTOUT USART2_RX TIM2_CH1

USART4_RTS/

USART4_DE

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