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 

STM32F103xx

Pin descriptions

Table 3. Pin definitions (continued)

Pins

Pin name

Main function(3)

(after reset)

Default alternate functions

G3 14 20 29

PA4/SPI1_NSS/

USART2_CK/ADC_IN4

I/O

H3 15 21 30 PA5/SPI1_SCK/ ADC_IN5 I/O

J3 16 22 31

PA6/SPI1_MISO/

ADC_IN6/TIM3_CH1

I/O

K3 17 23 32

PA7/SPI1_MOSI/

ADC_IN7/TIM3_CH2

I/O

G4 - 24 33

PC4/ADC_IN14

I/O

H4 - 25 34

PC5/ADC_IN15

I/O

J4 18 26 35 PB0/ADC_IN8/ TIM3_CH3 I/O

K4 19 27 36 PB1/ADC_IN9/ TIM3_CH4 I/O

G5 20 28 37

PB2 / BOOT1

I/O FT

H5 - - 38

PE7

I/O FT

J5 - - 39

PE8

I/O FT

K5 - - 40

PE9

I/O FT

G6 - - 41

PE10

I/O FT

H6 - - 42

PE11

I/O FT

J6 - - 43

PE12

I/O FT

K6 - - 44

PE13

I/O FT

G7 - - 45

PE14

I/O FT

H7 - - 46

PE15

I/O FT

J7 21 29 47

PB10/I2C2_SCL/

USART3_TX

I/O FT

K7 22 30 48

PB11/I2C2_SDA /

USART3_RX

I/O FT

E7 23 31 49

VSS_1

S

F7 24 32 50

VDD_1

S

PB12/SPI2_NSS /

K8 25 33 51 I2C2_SMBAl/ USART3_CK / I/O FT

TIM1_BKIN

J8 26 34 52

H8 27 35 53

PB13/SPI2_SCK /

USART3_CTS /

TIM1_CH1N

PB14/SPI2_MISO /

USART3_RTS /

TIM1_CH2N

I/O FT

I/O FT

PA4

PA5

PA6

PA7

PC4

PC5

PB0

PB1

PB2/BOOT1

PE7

PE8

PE9

PE10

PE11

PE12

PE13

PE14

PE15

PB10

PB11

VSS_1

VDD_1

PB12

PB13

PB14

SPI1_NSS(6)/

USART2_CK(6)/ ADC_IN4

SPI1_SCK(6)/ ADC_IN5

SPI1_MISO(6)/

ADC_IN6/TIM3_CH1(6)

SPI1_MOSI(6)/

ADC_IN7/TIM3_CH2(6)

ADC_IN14

ADC_IN15

ADC_IN8/TIM3_CH3(6)

ADC_IN9/TIM3_CH4(6)

I2C2_SCL/USART3_TX(5)(6)

I2C2_SDA/

USART3_RX(5)(6)

SPI2_NSS(5)

/I2C2_SMBAl(5)/

USART3_CK(5)(6)/

TIM1_BKIN(6)

SPI2_SCK(5)/

USART3_CTS(5)(6)/

TIM1_CH1N (6)

SPI2_MISO(5)

/USART3_RTS(5)(6)

TIM1_CH2N (6)

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