Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 8KB TSSOP

STM32L011x3/4 Pin descriptions

DocID027973 Rev 5 41/119

Table 14. Alternate functions

Ports

AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7

SPI1/USART2/

TIM21/

EVENTOUT/

SYS_AF

SPI1/I2C1/

LPTIM

LPUART1/

LPTIM/TIM2/

EVENTOUT/

SYS_AF

I2C1/LPTIM/

EVENTOUT

I2C1/USART2/L

PUART1/

EVENTOUT

SPI1/TIM2/21

LPUART1/EVE

VENTOUT

COMP1/2

Port A

PA0 USART2_RX LPTIM1_IN1 TIM2_CH1 - USART2_CTS TIM2_ETR LPUART1_RX COMP1_OUT

PA1 EVENTOUT LPTIM1_IN2 TIM2_CH2 I2C1_SMBA

USART2_RTS_

TIM21_ETR LPUART1_TX -

PA2 TIM21_CH1 - TIM2_CH3 - USART2_TX - LPUART1_TX COMP2_OUT

PA3 TIM21_CH2 - TIM2_CH4 - USART2_RX - LPUART1_RX -

PA4 SPI1_NSS LPTIM1_IN1 LPTIM1_ETR I2C1_SCL USART2_CK TIM2_ETR LPUART1_TX COMP2_OUT

PA5 SPI1_SCK LPTIM1_IN2 TIM2_ETR - - TIM2_CH1 - -

PA6 SPI1_MISO LPTIM1_ETR - - LPUART1_CTS - EVENTOUT COMP1_OUT

PA7 SPI1_MOSI LPTIM1_OUT - - USART2_CTS TIM21_ETR EVENTOUT COMP2_OUT

PA8 MCO - LPTIM1_IN1 EVENTOUT USART2_CK TIM2_CH1 - -

PA9 MCO I2C1_SCL LPTIM1_OUT - USART2_TX TIM21_CH2 - COMP1_OUT

PA10 TIM21_CH1 I2C1_SDA RTC_REFIN - USART2_RX TIM2_CH3 - COMP1_OUT

PA11 SPI1_MISO LPTIM1_OUT EVENTOUT - USART2_CTS TIM21_CH2 - COMP1_OUT

PA12 SPI1_MOSI - EVENTOUT -

USART2_RTS_

- - COMP2_OUT

PA13 SWDIO LPTIM1_ETR - I2C1_SDA - SPI1_SCK LPUART1_RX COMP1_OUT

PA14 SWCLK LPTIM1_OUT - I2C1_SMBA USART2_TX SPI1_MISO LPUART1_TX COMP2_OUT

PA15 SPI1_NSS - TIM2_ETR EVENTOUT USART2_RX TIM2_CH1 - -

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