STM32F103x8, STM32F103xB
Table 5.
Pinouts and pin description
Medium-density STM32F103xx pin definitions (continued)
Pins
Alternate functions
(4)
I / O Level
(2)
LQFP48/VFQFPN48
VFQFPN36
LFBGA100
TFBGA64
LQFP100
LQFP64
Pin name
Main
function
(3)
(after reset)
Type
(1)
Default
Remap
H7
J7
K7
E7
F7
-
21
22
23
24
-
G7
H7
D6
E6
-
29
30
31
32
46
47
48
49
50
-
-
-
18
19
PE15
PB10
PB11
V
SS_1
V
DD_1
I/O FT
I/O FT
I/O FT
S
S
PE15
PB10
PB11
V
SS_1
V
DD_1
SPI2_NSS/
I2C2_SMBAl/
USART3_CK
(8)
/
TIM1_BKIN
(8)
SPI2_SCK/
USART3_CTS
(8)
/
TIM1_CH1N
(8)
SPI2_MISO/
USART3_RTS
(8)
TIM1_CH2N
(8)
SPI2_MOSI/
TIM1_CH3N
(8)
I2C2_SCL/
USART3_TX
(8)
I2C2_SDA/
USART3_RX
(8)
TIM1_BKIN
TIM2_CH3
TIM2_CH4
K8
25
H8
33
51
-
PB12
I/O FT
PB12
J8
26
G8
34
52
-
PB13
I/O FT
PB13
H8
27
F8
35
53
-
PB14
I/O FT
PB14
G8
K9
J9
H9
G9
K10
J10
H10
G10
F10
E10
F9
E9
D9
28
-
-
-
-
-
-
-
-
-
F7
-
-
-
-
-
-
-
-
F6
E7
E8
36
-
-
-
-
-
-
-
-
37
38
39
40
41
54
55
56
57
58
59
60
61
62
63
64
65
66
67
-
-
-
-
-
-
-
-
-
-
-
-
-
20
PB15
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PC6
PC7
PC8
PC9
PA8
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
PB15
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PC6
PC7
PC8
PC9
PA8
USART3_TX
USART3_RX
USART3_CK
USART3_CTS
TIM4_CH1 /
USART3_RTS
TIM4_CH2
TIM4_CH3
TIM4_CH4
TIM3_CH1
TIM3_CH2
TIM3_CH3
TIM3_CH4
USART1_CK/
TIM1_CH1
(8)
/MCO
-
29
D8
D7
Doc ID 13587 Rev 12
29/96
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