Datasheet

Pinouts and pin description STM32L431xx
56/200 DocID028800 Rev 1
81212E5F616F3 25 K3 PA2 I/O FT_a -
TIM2_CH3, USART2_TX,
LPUART1_TX,
QUADSPI_BK1_NCS,
COMP2_OUT,
TIM15_CH1, EVENTOUT
COMP2_INM,
ADC1_IN7,
WKUP4,
LSCO
91313E4G617G326 L3 PA3 I/O TT_a -
TIM2_CH4, USART2_RX,
LPUART1_RX,
QUADSPI_CLK,
SAI1_MCLK_A,
TIM15_CH2, EVENTOUT
OPAMP1_
VOUT,
COMP2_INP,
ADC1_IN8
--- -H818C227E3 VSS S - - - -
--- -H719D228H3 VDD S - - - -
10 14 14 G6 E5 20 H3 29 M3 PA4 I/O TT_a -
SPI1_NSS, SPI3_NSS,
USART2_CK,
SAI1_FS_B,
LPTIM2_OUT,
EVENTOUT
COMP1_INM,
COMP2_INM,
ADC1_IN9,
DAC1_OUT1
11 15 15 F5 F5 21 F4 30 K4 PA5 I/O TT_a -
TIM2_CH1, TIM2_ETR,
SPI1_SCK,
LPTIM2_ETR,
EVENTOUT
COMP1_INM,
COMP2_INM,
ADC1_IN10,
DAC1_OUT2
12 16 16 F4 G5 22 G4 31 L4 PA6 I/O FT_a -
TIM1_BKIN, SPI1_MISO,
COMP1_OUT,
USART3_CTS,
LPUART1_CTS,
QUADSPI_BK1_IO3,
TIM1_BKIN_COMP2,
TIM16_CH1, EVENTOUT
ADC1_IN11
13 17 17 F3 H6 23 H4 32 M4 PA7 I/O FT_fa -
TIM1_CH1N, I2C3_SCL,
SPI1_MOSI,
QUADSPI_BK1_IO2,
COMP2_OUT,
EVENTOUT
ADC1_IN12
--- -D424H533K5 PC4 I/OFT_a-
USART3_TX,
EVENTOUT
COMP1_INM,
ADC1_IN13
--- -E425H634L5 PC5 I/OFT_a-
USART3_RX,
EVENTOUT
COMP1_INP,
ADC1_IN14,
WKUP5
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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