Datasheet

Pinouts and pin description STM32F103x8, STM32F103xB
32/105 DocID13587 Rev 16
A9 A10 37 A7 49 76 28 PA14 I/O FT JTCK/SWCLK PA14
A8 A9 38 A6 50 77 29 PA15 I/O FT JTDI
TIM2_CH1_
ETR/ PA15
/SPI1_NSS
B9 B11 - B7 51 78 PC10 I/O FT PC10 USART3_TX
B8 C10 - B6 52 79 PC11 I/O FT PC11 USART3_RX
C8 B10 - C5 53 80 PC12 I/O FT PC12 USART3_CK
- C9 - C1 - 81 2 PD0 I/O FT PD0 CANRX
- B9 - D1 - 82 3 PD1 I/O FT PD1 CANTX
B7 C8 B5 54 83 - PD2 I/O FT PD2 TIM3_ETR
C7 B8 - - - 84 - PD3 I/O FT PD3 USART2_CTS
D7 B7 - - - 85 - PD4 I/O FT PD4 USART2_RTS
B6 A6 - - - 86 - PD5 I/O FT PD5 USART2_TX
C6 B6 - - - 87 - PD6 I/O FT PD6 USART2_RX
D6 A5 - - - 88 - PD7 I/O FT PD7 USART2_CK
A7 A8 39 A5 55 89 30 PB3 I/O FT JTDO
TIM2_CH2 /
PB3
TRACESWO
SPI1_SCK
A6 A7 40 A4 56 90 31 PB4 I/O FT JNTRST
TIM3_CH1/
PB4/
SPI1_MISO
C5 C5 41 C4 57 91 32 PB5 I/O PB5 I2C1_SMBAl
TIM3_CH2 /
SPI1_MOSI
B5 B5 42 D3 58 92 33 PB6 I/O FT PB6
I2C1_SCL
(9)
/
TIM4_CH1
(9)
USART1_TX
A5 B4 43 C3 59 93 34 PB7 I/O FT PB7
I2C1_SDA
(9)
/
TIM4_CH2
(9)
USART1_RX
D5 A4 44 B4 60 94 35 BOOT0 I BOOT0
Table 5. Medium-density STM32F103xx pin definitions (continued)
Pins
Pin name
Type
(1)
I / O Level
(2)
Main
function
(3)
(after reset)
Alternate functions
(4)
LFBGA100
UFBG100
LQFP48/UFQFPN48
TFBGA64
LQFP64
LQFP100
VFQFPN36
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