Datasheet

Pinouts and pin description STM32F103x4, STM32F103x6
26/99 DocID15060 Rev 7
Table 5. Low-density STM32F103xx pin definitions
Pins
Pin name
Type
(1)
I / O Level
(2)
Main
function
(3)
(after reset)
Alternate functions
(4)
LQFP48/
UFQFPN48
LQFP64
TFBGA64
VFQFPN36
Default Remap
11B2- V
BAT
S- V
BAT
--
22A2-
PC13-TAMPER-
RTC
(5)
I/O - PC13
(6)
TAMPER-RTC -
33A1-
PC14-
OSC32_IN
(5)
I/O - PC14
(6)
OSC32_IN -
44B1-
PC15-
OSC32_OUT
(5)
I/O - PC15
(6)
OSC32_OUT -
5 5 C1 2 OSC_IN I - OSC_IN - PD0
(7)
6 6 D1 3 OSC_OUT O - OSC_OUT - PD1
(7)
7 7 E1 4 NRST I/O - NRST -
- 8 E3 - PC0 I/O - PC0 ADC12_IN10 -
- 9 E2 - PC1 I/O - PC1 ADC12_IN11 -
- 10 F2 - PC2 I/O - PC2 ADC12_IN12 -
- 11 - - PC3 I/O - PC3 ADC12_IN13 -
--G1- V
REF+
(8)
S- V
REF+
--
812F15 V
SSA
S- V
SSA
--
913H16 V
DDA
S- V
DDA
--
10 14 G2 7 PA0-WKUP I/O - PA0
WKUP/USART2_CTS/
ADC12_IN0/
TIM2_CH1_ETR
(9)
-
11 15 H2 8 PA1 I/O - PA1
USART2_RTS/
ADC12_IN1/ TIM2_CH2
(9)
-
12 16 F3 9 PA2 I/O - PA2
USART2_TX/
ADC12_IN2/ TIM2_CH3
(9)
-
13 17 G3 10 PA3 I/O - PA3
USART2_RX/
ADC12_IN3/TIM2_CH4
(9)
-
-18C2- V
SS_4
S- V
SS_4
--
-19D2- V
DD_4
S- V
DD_4
--
14 20 H3 11 PA4 I/O - PA4
SPI1_NSS
(9)
/
USART2_CK/ADC12_IN4
-
15 21 F4 12 PA5 I/O - PA5 SPI1_SCK
(9)
/ ADC12_IN5 -
16 22 G4 13 PA6 I/O - PA6
SPI1_MISO
(9)
/
ADC12_IN6/TIM3_CH1
(9)
TIM1_BKIN
17 23 H4 14 PA7 I/O - PA7
SPI1_MOSI
(9)
/
ADC12_IN7/TIM3_CH2
(9)
TIM1_CH1N
- 24 H5 - PC4 I/O - PC4 ADC12_IN14 -
- 25 H6 - PC5 I/O - PC5 ADC12_IN15 -