STM32F042F4 datasheet(34/117 Pages) STMICROELECTRONICS

34 / 117 page

Pinouts and pin descriptions

STM32F042x4 STM32F042x6

34/117

DocID025832 Rev 5

PB13

I/O

FTf

SPI2_SCK,

TIM1_CH1N,

I2C1_SCL

PB14

I/O

FTf

SPI2_MISO,

TIM1_CH2N,

I2C1_SDA

PB15

I/O

SPI2_MOSI,

TIM1_CH3N

WKUP7,

RTC_REFIN

PA8

I/O

(4)

USART1_CK,

TIM1_CH1,

EVENTOUT, MCO,

CRS_SYNC

PA9

I/O

FTf

(4)

USART1_TX,

TIM1_CH2,

TSC_G4_IO1,

I2C1_SCL

PA10

I/O

FTf

(4)

USART1_RX,

TIM1_CH3,

TIM17_BKIN,

TSC_G4_IO2,

I2C1_SDA

21 19(5) 17(5)

PA11

I/O

FTf

(4)

CAN_RX,

USART1_CTS,

TIM1_CH4,

TSC_G4_IO3,

EVENTOUT,

I2C1_SCL

USB_DM

22 20(5) 18(5)

PA12

I/O

FTf

(4)

CAN_TX,USART1_RTS,

TIM1_ETR,

TSC_G4_IO4,

EVENTOUT,

I2C1_SDA

USB_DP

PA13

I/O

(4)

(6)

IR_OUT, SWDIO

USB_NOE

VSS

Ground

VDDIO2

Digital power supply

PA14

I/O

(4)

(6)

USART2_TX, SWCLK

Table 13. STM32F042x pin definitions (continued)

Pin numbers

Pin name

(function upon

reset)

type

Pin functions

Alternate function

Additional

functions

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