STM32F103X8 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F103X8

Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces

STMicroelectronics 

Pin descriptions

STM32F103xx

Table 3. Pin definitions (continued)

Pins

Pin name

Main function(3)

(after reset)

Default alternate functions

G8 28 36 54

K9 -

J9 -

H9 -

G9 -

K10 -

J10 -

H10 -

G10 -

F10 -

E10

F9

E9 -

- 55

- 56

- 57

- 58

- 59

- 60

- 61

- 62

37 63

38 64

39 65

40 66

D9 29 41 67

C9 30 42 68

D10 31 43 69

C10 32 44 70

B10 33 45 71

A10 34 46 72

F8 - - 73

E6 35 47 74

F6 36 48 75

A9 37 49 76

A8 38 50 77

B9 - 51 78

B8 - 52 79

C8 - 53 80

PB15/SPI2_MOSI

TIM1_CH3N

PD8

PD9

PD10

PD11

PD12

PD13

PD14

PD15

PC6

PC7

PC8

PC9

PA8/USART1_CK/

TIM1_CH1/MCO

PA9/USART1_TX/

TIM1_CH2

PA10/USART1_RX/

TIM1_CH3

PA11 / USART1_CTS/

CANRX / USBDM/

TIM1_CH4

PA12 / USART1_RTS/

CANTX / USBDP/

TIM1_ETR

PA13/JTMS/SWDIO

VSS_2

VDD_2

PA14/JTCK/SWCLK

PA15/JTDI

PC10

PC11

PC12

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

I/O FT

PB15

PD8

PD9

PD10

PD11

PD12

PD13

PD14

PD15

PC6

PC7

PC8

PC9

PA8

PA9

PA10

PA11

I/O FT

PA12

I/O FT

JTMS/SWDIO

Not connected

S

S

I/O FT

VSS_2

VDD_2

JTCK/SWCLK

I/O FT

JTDI

I/O FT

PC10

I/O FT

PC11

I/O FT

PC12

SPI2_MOSI(5)/

TIM1_CH3N(6)

USART1_CK/

TIM1_CH1(6)/MCO

USART1_TX(6)/

TIM1_CH2(6)

USART1_RX(6)/

TIM1_CH3(6)

USART1_CTS/

CANRX(6)/

TIM1_CH4(6) / USBDM

USART1_RTS/

CANTX(6) /

TIM1_ETR(6) / USBDP

PA13

PA14

PA15

20/67

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