Pin descriptions
Table 4. Pin definitions (continued)
STM32F103xC, STM32F103xD, STM32F103xE
Pins
Alternate functions
Main
Pin name
function(3)
Default
Remap
(after reset)
M5
L5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
49
50
51
52
53
54
55
56
57
PF11
PF12
VSS_6
VDD_6
PF13
PF14
PF15
PG0
I/O
FSMC_NIOS16
FSMC_A6
I/O
H5
G5
K5
M6
L6
S
S
I/O
FSMC_A7
FSMC_A8
FSMC_A9
FSMC_A10
FSMC_A11
FSMC_D4
FSMC_D5
FSMC_D6
I/O
I/O
K6
J6
I/O
PG1
I/O
M7 H5
L7 J5
K7 K5
38 58
39 59
40 60
PE7
I/O FT
I/O FT
I/O FT
S
PE7
PE8
PE9
TIM1_ETR
TIM1_CH1N
TIM1_CH1
PE8
PE9
H6
G6
-
-
-
-
61
62
VSS_7
VDD_7
PE10
PE11
PE12
PE13
PE14
PE15
S
J7 G6
H8 H6
J8 J6
K8 K6
L8 G7
M8 H7
41 63
42 64
43 65
44 66
45 67
46 68
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
PE10
PE11
PE12
PE13
PE14
PE15
FSMC_D7
FSMC_D8
FSMC_D9
FSMC_D10
FSMC_D11
FSMC_D12
TIM1_CH2N
TIM1_CH2
TIM1_CH3N
TIM1_CH3
TIM1_CH4
TIM1_BKIN
I2C2_SCL
M9 J7 29 47 69
M10 K7 30 48 70
PB10
PB11
I/O FT
I/O FT
PB10
PB11
TIM2_CH3
TIM2_CH4
USART3_TX(6)
I2C2_SDA
USART3_RX(6)
H7 E7 31 49 71
G7 F7 32 50 72
VSS_1
VDD_1
S
S
VSS_1
VDD_1
SPI2_NSS/I2S2_WS/
I2C2_SMBAl/
M11 K8 33 51 73
PB12
I/O FT
PB12
USART3_CK(6)
TIM1_BKIN(6)
/
SPI2_SCK/I2S2_CK
M12 J8 34 52 74
L11 H8 35 53 75
PB13
PB14
I/O FT
I/O FT
PB13
PB14
USART3_CTS(6)
TIM1_CH1N
/
SPI2_MISO/TIM1_CH2N
USART3_RTS(6)
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STMICROELECTRONICS [ ST ]
