Pinouts and pin description
STM32F103x4, STM32F103x6
Alternate functions(4)
Table 5.
Pins
Low-density STM32F103xx pin definitions (continued)
Main
Pin name
function(3)
(after reset)
Default
Remap
-
25 H6
PC5
PB0
I/O
I/O
I/O
PC5
PB0
PB1
ADC12_IN15
18
19
20
21
22
23
24
25
26
27
28
-
26 F5 15
27 G5 16
28 G6 17
ADC12_IN8/TIM3_CH3(8)
ADC12_IN9/TIM3_CH4(8)
TIM1_CH2N
TIM1_CH3N
PB1
PB2
I/O FT PB2/BOOT1
29 G7
30 H7
-
-
PB10
PB11
VSS_1
VDD_1
PB12
PB13
PB14
PB15
PC6
I/O FT
I/O FT
S
PB10
PB11
VSS_1
VDD_1
PB12
PB13
PB14
PB15
PC6
TIM2_CH3
TIM2_CH4
31 D6 18
32 E6 19
S
33 H8
34 G8
35 F8
36 F7
37 F6
38 E7
39 E8
40 D8
-
-
-
-
-
-
-
-
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
TIM1_BKIN(8)
TIM1_CH1N (8)
TIM1_CH2N (8)
TIM1_CH3N(8)
TIM3_CH1
TIM3_CH2
TIM3_CH3
TIM3_CH4
PC7
PC7
PC8
PC8
-
PC9
PC9
USART1_CK/
TIM1_CH1/MCO
29
41 D7 20
PA8
I/O FT
PA8
USART1_TX(8)
TIM1_CH2(8)
/
30
31
32
42 C7 21
43 C6 22
44 C8 23
PA9
PA10
PA11
I/O FT
I/O FT
I/O FT
PA9
PA10
PA11
USART1_RX(8)/ TIM1_CH3
USART1_CTS/ CAN_RX(8)
TIM1_CH4 / USBDM
/
USART1_RTS/ CAN_TX(8)
TIM1_ETR / USBDP
/
33
45 B8 24
PA12
I/O FT
PA12
34
35
36
37
46 A8 25
47 D5 26
48 E5 27
49 A7 28
PA13
VSS_2
VDD_2
PA14
I/O FT JTMS/SWDIO
PA13
PA14
S
S
VSS_2
VDD_2
I/O FT JTCK/SWCLK
TIM2_CH1_ETR/
PA15 / SPI1_NSS
38
50 A6 29
PA15
I/O FT
JTDI
-
-
-
51 B7
52 B6
53 C5
PC10
PC11
PC12
I/O FT
I/O FT
I/O FT
PC10
PC11
PC12
26/87
Doc ID 15060 Rev 5