STM32F051X4 datasheet(35/122 Pages) STMICROELECTRONICS

Part #	STM32F051X4

Description	ARM®-based 32-bit MCU, 16 to 64 KB Flash, 11 timers, ADC, DAC and communication interfaces, 2.0-3.6 V

PDF	122 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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35 / 122 page

DocID022265 Rev 7

35/122

STM32F051x4 STM32F051x6 STM32F051x8

Pinouts and pin descriptions

45 B8 33 A1 22 22

PA12

I/O

USART1_RTS,

TIM1_ETR,

COMP2_OUT,

TSC_G4_IO4,

EVENTOUT

46 A8 34 B1 23 23

PA13

(SWDIO)

I/O

(6)

IR_OUT,

SWDIO

47 D6 35

PF6

I/O

I2C2_SCL

48 E6 36

PF7

I/O

I2C2_SDA

49 A7 37 B2 24 24

PA14

(SWCLK)

I/O

(6)

USART2_TX,

SWCLK

50 A6 38 A2 25 25

PA15

I/O

SPI1_NSS,

I2S1_WS,

USART2_RX,

TIM2_CH1_ETR,

EVENTOUT

51 B7

---

PC10

I/O

52 B6

---

PC11

I/O

53 C5

PC12

I/O

54 B5

PD2

I/O

TIM3_ETR

55 A5 39 B3 26 26

PB3

I/O

SPI1_SCK,

I2S1_CK,

TIM2_CH2,

TSC_G5_IO1,

EVENTOUT

56 A4 40 A3 27 27

PB4

I/O

SPI1_MISO,

I2S1_MCK,

TIM3_CH1,

TSC_G5_IO2,

EVENTOUT

57 C4 41 E6 28 28

PB5

I/O

SPI1_MOSI,

I2S1_SD,

I2C1_SMBA,

TIM16_BKIN,

TIM3_CH2

Table 13. Pin definitions (continued)

Pin number

Pin name

(function upon

reset)

Pin functions

Alternate functions

Additional

functions

STM32F051X4 Datasheet(PDF) 35 Page - STMicroelectronics

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