Datasheet

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STM32L052x6 STM32L052x8 Pin descriptions

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Table 17. Alternate function port A

Port

AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7

SPI1/TIM21/SYS_A

F/EVENTOUT/

USB/TIM2/

EVENTOUT/

TSC/

EVENTOUT

USART1/2/3 TIM2/21/22 EVENTOUT COMP1/2

Port A

PA0 - - TIM2_CH1 TSC_G1_IO1 USART2_CTS TIM2_ETR - COMP1_OUT

PA1 EVENTOUT - TIM2_CH2 TSC_G1_IO2

USART2_RTS_

TIM21_ETR - -

PA2 TIM21_CH1 - TIM2_CH3 TSC_G1_IO3 USART2_TX - - COMP2_OUT

PA3 TIM21_CH2 - TIM2_CH4 TSC_G1_IO4 USART2_RX - - -

PA4 SPI1_NSS - - TSC_G2_IO1 USART2_CK TIM22_ETR - -

PA5 SPI1_SCK - TIM2_ETR TSC_G2_IO2 TIM2_CH1 - -

PA6 SPI1_MISO - - TSC_G2_IO3 LPUART1_CTS TIM22_CH1 EVENTOUT COMP1_OUT

PA7 SPI1_MOSI - - TSC_G2_IO4 TIM22_CH2 EVENTOUT COMP2_OUT

PA8 MCO - USB_CRS_SYNC EVENTOUT USART1_CK - - -

PA9 MCO - - TSC_G4_IO1 USART1_TX - - -

PA10 - - - TSC_G4_IO2 USART1_RX - - -

PA11 SPI1_MISO - EVENTOUT TSC_G4_IO3 USART1_CTS - - COMP1_OUT

PA12 SPI1_MOSI - EVENTOUT TSC_G4_IO4

USART1_RTS_

- - COMP2_OUT

PA13 SWDIO - USB_NOE - - - - -

PA14 SWCLK - - - USART2_TX - - -

PA15 SPI1_NSS - TIM2_ETR EVENTOUT USART2_RX TIM2_CH1 - -

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