Datasheet
STM32L072xx Pin descriptions
DocID027100 Rev 4 53/149
Table 19. Alternate functions port C
Port
AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7
SPI1/SPI2/I2S2/
USART1/2/
LPUART1/USB/
LPTIM1/TSC/
TIM2/21/22/
EVENTOUT/
SYS_AF
SPI1/SPI2/I2S2/I2C1/
TIM2/21
SPI1/SPI2/I2S2/
LPUART1/
USART5/USB/
LPTIM1/TIM2/3
/EVENTOUT/SYS_AF
I2C1/TSC/
EVENTOUT
I2C1/USART1/2/
LPUART1/
TIM3/22/
EVENTOUT
SPI2/I2S2
/I2C2/
USART1/
TIM2/21/22
I2C1/2/
LPUART1/
USART4/
UASRT5/TIM21/E
VENTOUT
I2C3/LPUART1/
COMP1/2/
TIM3
Port C
PC0 LPTIM1_IN1 EVENTOUT TSC_G7_IO1 LPUART1_RX I2C3_SCL
PC1 LPTIM1_OUT EVENTOUT TSC_G7_IO2 LPUART1_TX I2C3_SDA
PC2 LPTIM1_IN2
SPI2_MISO/
I2S2_MCK
TSC_G7_IO3
PC3 LPTIM1_ETR
SPI2_MOSI/
I2S2_SD
TSC_G7_IO4
PC4 EVENTOUT LPUART1_TX
PC5 LPUART1_RX TSC_G3_IO1
PC6 TIM22_CH1 TIM3_CH1 TSC_G8_IO1
PC7 TIM22_CH2 TIM3_CH2 TSC_G8_IO2
PC8 TIM22_ETR TIM3_CH3 TSC_G8_IO3
PC9 TIM21_ETR USB_NOE/TIM3_CH4 TSC_G8_IO4 I2C3_SDA
PC10 LPUART1_TX USART4_TX
PC11 LPUART1_RX USART4_RX
PC12 USART5_TX USART4_CK
PC13
PC14
PC15
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