Datasheet
Pinouts and pin description STM32L431xx
60/200 DocID028800 Rev 1
--- -F339E865E10 PC8 I/O FT -
TSC_G4_IO3,
SDMMC1_D0,
EVENTOUT
-
--- -E240D866D12 PC9 I/O FT -
TSC_G4_IO4,
SDMMC1_D1,
EVENTOUT
-
18 29 29 D1 E3 41 D7 67 D11 PA8 I/O FT -
MCO, TIM1_CH1,
USART1_CK,
SWPMI1_IO,
SAI1_SCK_A,
LPTIM2_OUT,
EVENTOUT
-
19 30 30 D2 D1 42 C7 68 D10 PA9 I/O FT_f -
TIM1_CH2, I2C1_SCL,
USART1_TX,
SAI1_FS_A,
TIM15_BKIN,
EVENTOUT
-
20 31 31 C2 D2 43 C6 69 C12 PA10 I/O FT_f -
TIM1_CH3, I2C1_SDA,
USART1_RX,
SAI1_SD_A, EVENTOUT
-
21 32 32 C1 D3 44 C8 70 B12 PA11 I/O FT_u -
TIM1_CH4, TIM1_BKIN2,
SPI1_MISO,
COMP1_OUT,
USART1_CTS,
CAN1_RX,
TIM1_BKIN2_COMP1,
EVENTOUT
-
22 33 33 C3 C1 45 B8 71 A12 PA12 I/O FT_u -
TIM1_ETR, SPI1_MOSI,
USART1_RTS_DE,
CAN1_TX, EVENTOUT
-
23 34 34 B2 C2 46 A8 72 A11
PA13
(JTMS-
SWDIO)
I/O FT
(3)
JTMS-SWDIO, IR_OUT,
SWPMI1_TX,
SAI1_SD_B, EVENTOUT
-
- 35 35 B1 B1 47 D5 - - VSS S - - - -
-3636A1A148E573C11 VDD S - - - -
--- - - - -74F11 VSS S - - - -
--- - - - -75G11 VDD S - - - -
24 37 37 A2 B2 49 A7 76 A10
PA14
(JTCK-
SWCLK)
I/O FT
(3)
JTCK-SWCLK,
LPTIM1_OUT,
I2C1_SMBA,
SWPMI1_RX,
SAI1_FS_B, EVENTOUT
-
Table 14. STM32L431xx pin definitions (continued)
Pin Number
Pin name
(function
after
reset)
Pin type
I/O structure
Notes
Pin functions
UFQFPN32
LQFP48
UFQFPN48
WLCSP49
WLCSP64
LQFP64
UFBGA64
LQFP100
UFBGA100
Alternate functions
Additional
functions
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