STMicroelectronics STM32F031F4 Manual page 30

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Pinouts and pin description
Pin number
32 21 21 -
33 22 22 -
34 23 23 21 A1
35 - - -
36 - - -
37 24 24 22 A2
38 25 25 23
39 26 26 24
40 27 27 25
41 28 28 26 C2
42 29 29 27 B2
43 30 30 28 A3
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Table 11. Pin definitions (continued)
Pin name
(function after
reset)
- - PA11
- - PA12
PA13
19
(SWDIO)
- - PF6
- - PF7
PA14
20
(SWCLK)
- - PA15
- - PB3
- - PB4
- PB5
- PB6
- PB7
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Notes
Alternate functions
USART1_CTS,
I/O FT -
USART1_RTS,
I/O FT -
(4)
I/O FT
I/O FTf -
I/O FTf -
USART1_TX,
(4)
I/O FT
I/O FT - TIM2_CH_ETR,
USART1_RX
I/O FT -
I/O FT -
I/O FT -
TIM16_BKIN,
I/O FTf - USART1_TX,
TIM16_CH1N
I/O FTf - USART1_RX,
TIM17_CH1N
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STM32F031x4 STM32F031x6
Pin functions
Additional
functions
TIM1_CH4,
EVENTOUT
TIM1_ETR,
EVENTOUT
IR_OUT,
SWDIO
I2C1_SCL
I2C1_SDA
SWCLK
SPI1_NSS,
I2S1_WS,
EVENTOUT,
SPI1_SCK,
I2S1_CK,
TIM2_CH2,
EVENTOUT
SPI1_MISO,
I2S1_MCK,
TIM3_CH1,
EVENTOUT
SPI1_MOSI,
I2S1_SD,
I2C1_SMBA,
TIM3_CH2
I2C1_SCL,
I2C1_SDA,
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