Extension connection

UM0919

Table 4.

P1 pinout

Pin number

Pin number

Board pin

Type

Main function

Alternate

Remap

(P1)

(chip)

name

function

1

12/31/47/63

GND

-

Vss

2

-

NC

-

-

3

3V3

-

-

4

1

VBAT

S

VBAT

5

2

PC13

I/O

Port C13

TAMPER-RTC

6

3

PC14(1)

I/O

Port C14

OSC32_IN

7

4

PC15(1)

I/O

Port C15

OSC32_OUT

8

5

PD0(1)

I/O

OSC_IN

9

6

PD1(1)

I/O

OSC_OUT

10

7

NRST

I/O

RESET

11

8

PC0

I/O

Port C0

ADC1_IN10

12

9

PC1

I/O

Port C1

ADC1_IN11

13

10

PC2

I/O

Port C2

ADC1_IN12

14

11

PC3

I/O

Port C3

ADC1_IN13

WKUP /

15

14

PA0

I/O

Port A0

USART2_CTS/

ADC1_IN0 /

TIM2_CH1_ETR

USART2_RTS/

16

15

PA1

I/O

Port A1

ADC1_IN1 /

TIM2_CH2

USART2_TX/

17

16

PA2

I/O

Port A2

ADC1_IN2 /

TIM2_CH3/

TIM15_CH1

USART2_RX/

18

17

PA3

I/O

Port A3

ADC1_IN3 /

TIM2_CH4 /

TIM15_CH2

SPI1_NSS/

19

20

PA4

I/O

Port A4

ADC1_IN4

USART2_CK /

DAC1_OUT

14/24

Doc ID 17217 Rev 2

UM0919

Extension connection

Table 4.

P1 pinout (continued)

Pin number

Pin number

Board pin

Type

Main function

Alternate

Remap

(P1)

(chip)

name

function

SPI1_SCK/

20

21

PA5

I/O

Port A5

ADC1_IN5 /

DAC2_OUT

SPI1_MISO/

TIM1_BKIN /

21

22

PA6

I/O

Port A6

ADC1_IN6 /

TIM16_CH1

TIM3_CH1

SPI1_MOSI/

TIM1_CH1N /

22

23

PA7

I/O

Port A7

ADC1_IN7 /

TIM17_CH1

TIM3_CH2

23

24

PC4

I/O

Port C4

ADC1_IN14

24

25

PC5

I/O

Port C5

ADC1_IN15

25

26

PB0

I/O

Port B0

ADC1_IN8/

TIM1_CH2N

TIM3_CH3

26

27

PB1

I/O

Port B1

ADC1_IN9/

TIM1_CH3N

TIM3_CH4

27

28

PB2

I/O

Port B2/

BOOT1

28

GND

Table 5.

P2 pinout

Pin number

Pin number

Pin name

Type

Main function

Alternate

Remap

(P2)

(chip)

function

1

GND

2

37

PC6

I/O

Port C6

TIM3_CH1

3

38

PC7

I/O

Port C7

TIM3_CH2

4

39

PC8

I/O

Port C8

TIM3_CH3

5

40

PC9

I/O

Port C9

TIM3_CH4

USART1_CK /

6

41

PA8

I/O

Port A8

MCO

TIM1_CH1

7

42

PA9

I/O

Port A9

USART1_TX /

TIM15_BKIN

TIM1_CH2

8

43

PA10

I/O

Port A10

USART1_RX /

TIM17_BKIN

TIM1_CH3

9

44

PA11

I/O

Port A11

USART1_CTS /

TIM1_CH4

10

45

PA12

I/O

Port A12

USART1_RTS /

TIM1_ETR

Doc ID 17217 Rev 2

15/24

Extension connection

UM0919

Table 5.

P2 pinout

(continued)

Pin number

Pin number

Pin name

Type

Main function

Alternate

Remap

(P2)

(chip)

function

11

46

PA13

I/O

JTMS/

PA13

SWDIO

12

49

PA14

I/O

JTCK/ SWCLK

PA14

TIM2_CH1_ETR

13

50

PA15

I/O

JTDI

/ PA15/

SPI1_NSS

14

51

PC10

I/O

Port C10

USART3_TX

15

52

PC11

I/O

Port C11

USART3_RX

16

53

PC12

I/O

Port C12

USART3_CX

17

54

PD2

I/O

Port D2

TIM3_ETR

TIM2_CH2 / PB3

18

55

PB3

I/O

JTDO

TRACESWO

SPI1_SCK

19

56

PB4

I/O

NJTRST

PB4 / TIM3_CH1

SPI1_MISO

20

57

PB5

I/O

Port B5

I2C1_SMBA /

TIM3_CH2 /

TIM16_BKIN

SPI1_MOSI

I2C1_SCL/

21

58

PB6

I/O

Port B6

TIM4_CH1

USART1_TX

TIM16_CH1N

I2C1_SDA/

22

59

PB7

I/O

Port B7

TIM17_CH1N

USART1_RX

TIM4_CH2

23

60

BOOT0

I

BOOT0

TIM4_CH3 /

24

61

PB8

I/O

Port B8

TIM16_CH1 /

I2C1_SCL

CEC

25

62

PB9

I/O

Port B9

TIM4_CH4 /

I2C1_SDA

TIM17_CH1

26

EXT_5V

27

NC

28

GND

16/24

Doc ID 17217 Rev 2

UM0919

Extension connection

Table 6.

P3 pinout

Pin number

Pin number

Pin name

Type

Main function

Alternate

Remap

(P3)

(chip)

function

I2C2_SCL/

1

29

PB10

I/O

Port B10

USART3_TX

TIM2_CH3/

CEC

2

30

PB11

I/O

Port B11

I2C2_SDA/

TIM2_CH4

USART3_RX

SPI2_NSS/

3

33

PB12

I/O

Port B12

I2C2_SMBA/

TIM1_BKIN/

USART3_CK

SPI2_SCK /

4

34

PB13

I/O

Port B13

TIM1_CH1N

USART3_CTS

SPI2_MISO/

5

35

PB14

I/O

Port B14

TIM1_CH2N /

TIM15_CH1

USART3_RTS

SPI2_MOSI /

6

36

PB15

I/O

Port B15

TIM1_CH3N /

TIM15_CH2

TIM15_CH1N

Doc ID 17217 Rev 2

17/24