STM32F051K4U6 Datasheet, PDF(29/104 Page) STMicroelectronics – Low- and medium-density advanced ARM™-based 32-bit MCU with 16 to 64 Kbytes Flash, timers, ADC, DAC and comm. interfaces

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STM32F051K4U6 Datasheet, PDF (29/104 Pages) STMicroelectronics – Low- and medium-density advanced ARM™-based 32-bit MCU with 16 to 64 Kbytes Flash, timers, ADC, DAC and comm. interfaces

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STM32F051x

Table 13. Pin definitions

Pin number

Pin name

(function after

reset)

Pinouts and pin description

Pin functions

Notes

Alternate functions

Additional functions

11 -

22 -

33 -

44 -

552

663

774

8- -

9- -

10 - -

11 - -

12 8 -

13 9 5

14 10 6

15 11 7

16 12 8

17 13 9

18 - -

19 - -

VBAT

Backup power supply

PC13

I/O TC (1)(2)

RTC_TAMP1,

RTC_TS, RTC_OUT,

WKUP2

PC14-OSC32_IN

I/O TC

(1)(2)

(PC14)

OSC32_IN

PC15-

OSC32_OUT I/O TC (1)(2)

(PC15)

OSC32_OUT

PF0-OSC_IN

I/O FT

(PF0)

OSC_IN

PF1-OSC_OUT

I/O FT

(PF1)

OSC_OUT

NRST

I/O RST

Device reset input / internal reset output (active low)

PC0

I/O TTa

EVENTOUT

ADC_IN10

PC1

I/O TTa

EVENTOUT

ADC_IN11

PC2

I/O TTa

EVENTOUT

ADC_IN12

PC3

I/O TTa

EVENTOUT

ADC_IN13

VSSA

Analog ground

VDDA

Analog power supply

PA0

I/O TTa

USART2_CTS,

TIM2_CH1_ETR,

COMP1_OUT,

TSC_G1_IO1

ADC_IN0,

COMP1_INM6,

RTC_TAMP2,

WKUP1

PA1

I/O TTa

USART2_RTS, TIM2_CH2,

TSC_G1_IO2, EVENTOUT

ADC_IN1,

COMP1_INP

PA2

I/O TTa

USART2_TX, TIM2_CH3,

TIM15_CH1,

COMP2_OUT,

TSC_G1_IO3

ADC_IN2,

COMP2_INM6

PA3

I/O TTa

USART2_RX, TIM2_CH4,

TIM15_CH2, TSC_G1_IO4

ADC_IN3,

COMP2_INP

PF4

I/O FT

EVENTOUT

PF5

I/O FT

EVENTOUT

Doc ID 022265 Rev 3

29/105

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