DocID026079 Rev 3 29/102
STM32F038x6 Pinouts and pin description
32
30 19 19 C1 17 PA9 I/O FTf -
USART1_TX,
TIM1_CH2,
I2C1_SCL
-
31 20 20 B1 18 PA10 I/O FTf -
USART1_RX,
TIM1_CH3,
TIM17_BKIN,
I2C1_SDA
-
32 21 - - - PA11 I/O FT -
USART1_CTS,
TIM1_CH4,
EVENTOUT
-
33 22 - - - PA12 I/O FT -
USART1_RTS,
TIM1_ETR,
EVENTOUT
-
34 23 21 A1 19
PA13
(SWDIO)
I/O FT
(5)
IR_OUT,
SWDIO
-
35 - - - - PF6 I/O FTf - I2C1_SCL -
36 - - - - PF7 I/O FTf - I2C1_SDA -
37 24 22 A2 20
PA14
(SWCLK)
I/O FT
(5)
USART1_TX,
SWCLK
-
38 25 23 - - PA15 I/O FT
(6)
SPI1_NSS,
I2S1_WS,
TIM2_CH_ETR,
EVENTOUT,
USART1_RX
-
39 26 24 - - PB3 I/O FT
(6)
SPI1_SCK,
I2S1_CK,
TIM2_CH2,
EVENTOUT
-
40 27 25 - - PB4 I/O FT
(6)
SPI1_MISO,
I2S1_MCK,
TIM3_CH1,
EVENTOUT
-
Table 11. Pin definitions (continued)
Pin number
Pin name
(function upon reset)
Pin type
I/O structure
Notes
Pin functions
LQFP48
UFQFPN32
UFQFPN28
WLCSP25
TSSOP20
Alternate functions
Additional
functions
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