Datasheet
DocID028800 Rev 1 57/200
STM32L431xx Pinouts and pin description
77
14 18 18 G5 F4 26 F5 35 M5 PB0 I/O FT_a -
TIM1_CH2N, SPI1_NSS,
USART3_CK,
QUADSPI_BK1_IO1,
COMP1_OUT,
SAI1_EXTCLK,
EVENTOUT
ADC1_IN15
15 19 19 G4 H5 27 G5 36 M6 PB1 I/O FT_a -
TIM1_CH3N,
USART3_RTS_DE,
LPUART1_RTS_DE,
QUADSPI_BK1_IO0,
LPTIM2_IN1,
EVENTOUT
COMP1_INM,
ADC1_IN16
- 2020G3G428G6 37 L6 PB2 I/O FT_a -
RTC_OUT, LPTIM1_OUT,
I2C3_SMBA, EVENTOUT
COMP1_INP
--- - - - -38M7 PE7 I/O FT -
TIM1_ETR, SAI1_SD_B,
EVENTOUT
-
--- - - - -39L7 PE8 I/O FT -
TIM1_CH1N,
SAI1_SCK_B,
EVENTOUT
-
--- - - - -40M8 PE9 I/O FT -
TIM1_CH1, SAI1_FS_B,
EVENTOUT
-
--- - - - -41L8 PE10 I/O FT -
TIM1_CH2N,
TSC_G5_IO1,
QUADSPI_CLK,
SAI1_MCLK_B,
EVENTOUT
-
--- - - - -42M9 PE11 I/O FT -
TIM1_CH2,
TSC_G5_IO2,
QUADSPI_BK1_NCS,
EVENTOUT
-
--- - - - -43L9 PE12 I/O FT -
TIM1_CH3N, SPI1_NSS,
TSC_G5_IO3,
QUADSPI_BK1_IO0,
EVENTOUT
-
--- - - - -44M10 PE13 I/O FT -
TIM1_CH3, SPI1_SCK,
TSC_G5_IO4,
QUADSPI_BK1_IO1,
EVENTOUT
-
--- - - - -45M11 PE14 I/O FT -
TIM1_CH4, TIM1_BKIN2,
TIM1_BKIN2_COMP2,
SPI1_MISO,
QUADSPI_BK1_IO2,
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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