STM32WL33C8V datasheet(32/91 Pages) STMICROELECTRONICS

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Table 3. Pin description

Pin number

Pin Name (function

after reset)

Pin type

Alternate functions

Additional functions

VFQFPN

PA2

I/O

SWDIO, USART1_CK,

TIM16_CH1, I2S3_MCK,

TIM2_CH1, LCD_SEG1

ADC_VINM2

PA3

I/O

SWCLK, USART1_RTS_DE,

TIM16_CH1N, SPI3_SCK/

I2S3_CK, TIM2_CH2,

LCD_SEG2

ADC_VINP2

VDD_1

1.7 to 3.6 V battery voltage input

PB3

I/O

USART1_CTS, LPUART1_TX,

SPI1_MOSI, TIM2_CH4,

LCD_SEG8

ADC_VINP0, COMP1_INN2

PB4

I/O

LPUART1_TX, SPI3_MISO,

LCD_SEG13/LCD_COM5

ADC_VINM3, VCMBUFF

PB5

I/O

LPUART1_RX, SPI3_NSS/

I2S3_WS, LCD_SEG14/

LCD_COM6

ADC_VINP3

PA0

I/O

I2C1_SCL, USART_CTS,

TIM2_CH3, LCD_SEG12/

LCD_COM4

PA4

I/O

LCO, LPUART1_TX,

COMP1_OUT, TIM2_CH1

PA11

I/O

MCO, RX_SEQUENCE,

SPI3_MOSI/I2S3_SD,

SUBG_TX_CLOCK, LCD_SEG5

PA10

I/O

LPUART1_CTS,

TX_SEQUENCE, I2S3_MCK,

SUBG_TX_DATA, LCD_SEG4

LCO

PA9

I/O

USART1_TX, RTC_OUT,

SPI3_NSS/I2S3_WS,

TIM2_CH4, LCD_SEG3

PA8

I/O

RTC_OUT/RTC_TAMP1/

RTC_TS, USART1_RX,

RX_SEQUENCE, SPI3_MISO,

TIM2_CH3, LCD_COM0

PB6

I/O

I2C1_SCL, LPUART1_TX,

COMP1_OUT, SPI3_SCK/

I2S3_CK, TIM2_CH3,

LCD_SEG15/LCD_COM7

PA5

I/O

MCO, LPUART1_RX,

TIM2_CH2, LCD_SEG9

PA6

I/O

I2C2_SCL, USART1_CTS,

TIM2_CH1

PA7

I/O

I2C2_SDA, LPUART1_RTS_DE,

TIM2_CH2

PB12

I/O

USART1_RTS_DE,

LPUART1_CTS, LCO,

TIM2_CH3

SXTALO

PB13

I/O

I2C2_SMBA, TIM2_CH4

SXTALI

PB14

I/O

I2C1_SMBA, USART1_RX,

TX_SEQUENCE, MCO,

TIM2_ETR, LCD_COM3

PVD_VIN

STM32WL33xx

Pinouts and pin description

DS14221 - Rev 5

page 32/91

STM32WL33C8V データシート(PDF) 32 Page - STMicroelectronics

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