STM32F103x8, STM32F103xB
Table 5.
Pinouts and pin description
Medium-density STM32F103xx pin definitions (continued)
I / O Level
(2)
Pins
VFQFPN36
Alternate functions
(4)
Main
function
(3)
(after reset)
Type
(1)
LFBGA100
TFBGA64
LQFP100
LQFP48
LQFP64
Pin name
Default
Remap
A10 34
F8
E6
F6
A9
A8
B9
B8
C8
D8
E8
B7
C7
D7
B6
C6
D6
A7
-
-
-
-
-
39
-
35
36
37
38
-
-
-
5
6
A8
-
D5
E5
A7
A6
B7
B6
C5
C1
D1
B5
-
-
-
-
-
A5
46
-
47
48
49
50
51
52
53
5
6
54
-
-
-
-
-
55
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
25
-
26
27
28
29
PA13
I/O FT JTMS/SWDIO
Not connected
PA13
V
SS_2
V
DD_2
PA14
PA15
PC10
PC11
PC12
S
S
V
SS_2
V
DD_2
PA14
TIM2_CH1_ETR/
PA15 /SPI1_NSS
USART3_TX
USART3_RX
USART3_CK
CANRX
CANTX
TIM3_ETR
USART2_CTS
USART2_RTS
USART2_TX
USART2_RX
USART2_CK
TIM2_CH2 / PB3
TRACESWO
SPI1_SCK
TIM3_CH1/ PB4/
SPI1_MISO
I/O FT JTCK/SWCLK
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
JTDI
PC10
PC11
PC12
OSC_IN
(9)
2
3
-
-
-
-
-
-
30
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PB3
I/O FT OSC_OUT
(9)
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
PD2
PD3
PD4
PD5
PD6
PD7
JTDO
A6
40
A4
56
90
31
PB4
I/O FT
JNTRST
C5
B5
A5
D5
B4
A4
41
42
43
44
45
46
C4
D3
C3
B4
B3
A3
57
58
59
60
61
62
91
92
93
94
95
96
32
33
34
35
-
-
PB5
PB6
PB7
BOOT0
PB8
PB9
I/O
I/O FT
I/O FT
I
I/O FT
I/O FT
PB5
PB6
PB7
BOOT0
PB8
PB9
I2C1_SMBAl
I2C1_SCL
(8)
/
TIM4_CH1
(8)
I2C1_SDA
(8)
/
TIM4_CH2
(8)
TIM3_CH2 /
SPI1_MOSI
USART1_TX
USART1_RX
TIM4_CH3
(8)
TIM4_CH4
(8)
I2C1_SCL /
CANRX
I2C1_SDA/
CANTX
Doc ID 13587 Rev 11
29/92
STMICROELECTRONICS [ STMICROELECTRONICS ]
