Pinouts and pin descriptions
STM32F103xC, STM32F103xD, STM32F103xE
Alternate functions(4)
Table 5.
High-density STM32F103xx pin definitions
Pins
Main
Pin name
function(3)
(after reset)
Default
Remap
A3 A3
A2 B3
B2 C3
B3 D3
B4 E3
-
-
-
-
-
-
-
1
2
3
4
5
6
1
2
3
4
5
6
PE2
PE3
PE4
PE5
PE6
VBAT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
S
PE2
PE3
PE4
PE5
PE6
VBAT
TRACECK/ FSMC_A23
TRACED0/FSMC_A19
TRACED1/FSMC_A20
TRACED2/FSMC_A21
TRACED3/FSMC_A22
-
-
-
C2 B2 C6
A1 A2 C8
1
PC13-TAMPER-
RTC(5)
2
3
4
7
8
9
7
8
9
I/O
I/O
I/O
PC13(6)
PC14(6)
PC15(6)
TAMPER-RTC
OSC32_IN
PC14-
B1 A1 B8
C1 B1 B7
OSC32_IN(5)
PC15-
OSC32_OUT
OSC32_OUT(5)
C3
C4
D4
E2
E3
E4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10
11
12
13
14
15
PF0
PF1
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
I/O FT
S
PF0
PF1
FSMC_A0
FSMC_A1
FSMC_A2
FSMC_A3
FSMC_A4
FSMC_A5
-
PF2
PF2
-
PF3
PF3
-
PF4
PF4
-
PF5
PF5
D2 C2
D3 D2
-
10 16
11 17
VSS_5
VDD_5
PF6
VSS_5
VDD_5
PF6
-
S
F3
F2
-
-
-
-
-
-
-
-
-
-
-
18
19
20
21
22
I/O
ADC3_IN4/FSMC_NIORD
ADC3_IN5/FSMC_NREG
ADC3_IN6/FSMC_NIOWR
ADC3_IN7/FSMC_CD
-
PF7
I/O
PF7
G3
G2
G1
-
PF8
I/O
PF8
-
PF9
I/O
PF9
-
PF10
OSC_IN
OSC_OUT
NRST
PC0
I/O
PF10
OSC_IN
OSC_OUT
NRST
PC0
ADC3_IN8/FSMC_INTR
D1 C1 D8
E1 D1 D7
F1 E1 C7
H1 F1 E8
H2 F2 F8
5
6
7
8
9
12 23
13 24
14 25
15 26
16 27
I
O
I/O
I/O
ADC123_IN10
ADC123_IN11
ADC123_IN12
ADC123_IN13
PC1
I/O
PC1
H3 E2 D6 10 17 28
H4 F3 11 18 29
J1 G1 E7 12 19 30
PC2
I/O
PC2
-
PC3
I/O
PC3
VSSA
S
VSSA
30/130
Doc ID 14611 Rev 8
STMICROELECTRONICS [ ST ]
