Datasheet

Pinouts and pin description STM32F050xx 30/97 Doc ID 023683 Rev 1
Table 9. Alternate functions selected through GPIOA_AFR registers for port A
Pin name AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7
PA0 USART1_CKS
(1)
TIM2_CH1_
ETR
PA1 EVENTOUT USART1_TX
(1)
TIM2_CH2
PA2 USART1_RX
(1)
TIM2_CH3
PA3 USART1_CTS
(1)
TIM2_CH4
PA 4
SPI1_NSS,
I2S1_WS
USART1_RTS
(1)
TIM14_CH1
PA 5
SPI1_SCK,
I2S1_CK
TIM2_CH1_
ETR
PA 6
SPI1_MISO,
I2S1_MCK
TIM3_CH1 TIM1_BKIN TIM16_CH1 EVENTOUT
PA 7
SPI1_MOSI,
I2S1_SD
TIM3_CH2 TIM1_CH1N TIM14_CH1 TIM17_CH1 EVENTOUT
PA8 MCO USART1_CK TIM1_CH1 EVENTOUT
PA9 USART1_TX TIM1_CH2 I2C1_SCL
(1)
PA10 TIM17_BKIN USART1_RX TIM1_CH3 I2C1_SDA
(1)
PA11 EVENTOUT USART1_CTS TIM1_CH4
PA12 EVENTOUT USART1_RTS TIM1_ETR
PA 1 3 S WDAT I R _O UT
PA14 SWCLK USART1_TX
(1)
PA 1 5
SPI1_NSS,
I2S1_WS
USART1_RX
(1)
TIM2_CH1_
ETR
EVENTOUT
1. This alternate feature is available on standard dies only.