STM32F103x4, STM32F103x6
Table 5.
Pins
LQFP48/
VFQFPN48
VFQFPN36
TFBGA64
LQFP64
Pin name
Type
(1)
Pinouts and pin description
Low-density STM32F103xx pin definitions
I / O Level
(2)
Alternate functions
(4)
Main
function
(3)
(after reset)
Default
Remap
1
2
3
4
5
6
7
-
-
-
-
-
8
9
10
1
2
3
4
5
6
7
8
9
10
11
-
12
13
14
B2
A2
A1
B1
C1
D1
E1
E3
E2
F2
-
G1
F1
H1
G2
-
-
-
-
2
3
4
-
-
-
-
-
5
6
7
V
BAT
PC13-TAMPER-
RTC
(5)
S
I/O
V
BAT
PC13
(6)
PC14
(6)
PC15
(6)
OSC_IN
OSC_OUT
NRST
PC0
PC1
PC2
PC3
V
REF+
V
SSA
V
DDA
PA0
WKUP/USART2_CTS/
ADC12_IN0/
TIM2_CH1_ETR
(8)
USART2_RTS/
ADC12_IN1/ TIM2_CH2
(8)
USART2_TX/
ADC12_IN2/ TIM2_CH3
(8)
USART2_RX/
ADC12_IN3/TIM2_CH4
(8)
ADC12_IN10
ADC12_IN11
ADC12_IN12
ADC12_IN13
TAMPER-RTC
OSC32_IN
OSC32_OUT
PC14-OSC32_IN
(5)
I/O
PC15-
OSC32_OUT
(5)
OSC_IN
OSC_OUT
NRST
PC0
PC1
PC2
PC3
V
REF+(7)
V
SSA
V
DDA
PA0-WKUP
I/O
I
O
I/O
I/O
I/O
I/O
I/O
S
S
S
I/O
11
12
13
-
-
14
15
16
17
-
15
16
17
18
19
20
21
22
23
24
H2
F3
G3
C2
D2
H3
F4
G4
H4
H5
8
9
10
-
-
11
12
13
14
PA1
PA2
PA3
V
SS_4
V
DD_4
PA4
PA5
PA6
PA7
PC4
I/O
I/O
I/O
S
S
I/O
I/O
I/O
I/O
I/O
PA1
PA2
PA3
V
SS_4
V
DD_4
PA4
PA5
PA6
PA7
PC4
SPI1_NSS
(8)
/
USART2_CK/ADC12_IN4
SPI1_SCK
(8)
/ ADC12_IN5
SPI1_MISO
(8)
/
ADC12_IN6/TIM3_CH1
(8)
SPI1_MOSI
(8)
/
ADC12_IN7/TIM3_CH2
(8)
ADC12_IN14
TIM1_BKIN
TIM1_CH1N
Doc ID 15060 Rev 5
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