STM32F103x8, STM32F103xB
Pinouts and pin description
Alternate functions(4)
Table 5.
Medium-density STM32F103xx pin definitions (continued)
Pins
Main
Pin name
function(3)
(after reset)
Default
Remap
USART2_TX(9)
ADC12_IN2/
TIM2_CH3(9)
/
J2 K3 12 F3 16 25
9
PA2
PA3
I/O
I/O
PA2
PA3
USART2_RX(9)
ADC12_IN3/
TIM2_CH4(9)
/
K2 L3 13 G3 17 26 10
E4 E3
F4 H3
-
-
C2 18 27
D2 19 28
-
-
VSS_4
VDD_4
S
S
VSS_4
VDD_4
SPI1_NSS(9)
/
G3 M3 14 H3 20 29 11
H3 K4 15 F4 21 30 12
J3 L4 16 G4 22 31 13
PA4
PA5
PA6
I/O
I/O
I/O
PA4
PA5
PA6
USART2_CK(9)
ADC12_IN4
/
SPI1_SCK(9)
ADC12_IN5
/
SPI1_MISO(9)
ADC12_IN6/
TIM3_CH1(9)
/
TIM1_BKIN
TIM1_CH1N
SPI1_MOSI(9)
ADC12_IN7/
TIM3_CH2(9)
/
K3 M4 17 H4 23 32 14
PA7
I/O
PA7
G4 K5
H4 L5
-
-
H5 24 33
H6 25 34
PC4
PC5
I/O
I/O
PC4
PC5
ADC12_IN14
ADC12_IN15
ADC12_IN8/
TIM3_CH3(9)
J4 M5 18 F5 26 35 15
PB0
PB1
I/O
I/O
PB0
PB1
TIM1_CH2N
TIM1_CH3N
ADC12_IN9/
TIM3_CH4(9)
K4 M6 19 G5 27 36 16
G5 L6 20 G6 28 37 17
PB2
PE7
I/O FT PB2/BOOT1
H5 M7
J5 L7
K5 M8
G6 L8
H6 M9
J6 L9
K6 M10
G7 M11
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
38
39
40
41
42
43
44
45
-
-
-
-
-
-
-
-
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
PE7
PE8
TIM1_ETR
TIM1_CH1N
TIM1_CH1
TIM1_CH2N
TIM1_CH2
TIM1_CH3N
TIM1_CH3
TIM1_CH4
PE8
PE9
PE9
PE10
PE11
PE12
PE13
PE14
PE10
PE11
PE12
PE13
PE14
Doc ID 13587 Rev 15
29/105
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