Pinouts and pin description
Table 5.
Medium-density STM32F103xx pin definitions
I / O Level
(2)
Pins
VFQFPN36
LFBGA100
TFBGA64
LQFP100
LQFP48
LQFP64
Pin name
Type
(1)
STM32F103x8, STM32F103xB
Alternate functions
(4)
Main
function
(3)
(after reset)
Default
Remap
A3
B3
C3
D3
E3
B2
A2
A1
B1
C2
D2
C1
D1
E1
F1
F2
E2
F3
G1
H1
J1
K1
-
-
-
-
-
1
2
3
4
-
-
5
6
7
-
-
-
-
8
-
-
9
B2
A2
A1
B1
-
-
C1
D1
E1
E3
E2
F2
-
(7)
F1
-
G1
(7)
H1
-
-
-
-
-
1
2
3
4
-
-
5
6
7
8
9
10
11
12
-
-
13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
-
-
-
-
-
-
-
-
-
-
-
2
3
4
-
-
-
-
5
-
-
6
PE2
PE3
PE4
PE5
PE6
V
BAT
PC13-TAMPER-
RTC
(5)
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
S
I/O
PE2
PE3
PE4
PE5
PE6
V
BAT
PC13
(6)
PC14
(6)
PC15
(6)
V
SS_5
V
DD_5
OSC_IN
OSC_OUT
NRST
PC0
PC1
PC2
PC3
V
SSA
V
REF-
V
REF+
V
DDA
TRACECK
TRACED0
TRACED1
TRACED2
TRACED3
TAMPER-RTC
OSC32_IN
OSC32_OUT
PC14-OSC32_IN
(5)
I/O
PC15-
OSC32_OUT
(5)
V
SS_5
V
DD_5
OSC_IN
OSC_OUT
NRST
PC0
PC1
PC2
PC3
V
SSA
V
REF-
V
REF+
V
DDA
I/O
S
S
I
O
I/O
I/O
I/O
I/O
I/O
S
S
S
S
ADC12_IN10
ADC12_IN11
ADC12_IN12
ADC12_IN13
G2
10
G2
14
23
7
PA0-WKUP
I/O
PA0
WKUP/
USART2_CTS
(8)
/
ADC12_IN0/
TIM2_CH1_ETR
(8)
USART2_RTS
(8)
/
ADC12_IN1/
TIM2_CH2
(8)
USART2_TX
(8)
/
ADC12_IN2/
TIM2_CH3
(8)
H2
11
H2
15
24
8
PA1
I/O
PA1
J2
12
F3
16
25
9
PA2
I/O
PA2
26/92
Doc ID 13587 Rev 11
STMICROELECTRONICS [ STMICROELECTRONICS ]
