Datasheet

Pinout and pin description STM32F102x8, STM32F102xB
20/80 DocID15056 Rev 5
Table 4. Medium-density STM32F102xx pin definitions
Pins
Pin name
Type
(1)
I / O level
(2)
Main
function
(3)
(after reset)
Alternate functions
(3) (4)
LQFP48 LQFP64
Default Remap
11 V
BAT
SV
BAT
2 2 PC13-TAMPER-RTC
(5)
I/O PC13
(6)
TAMPER-RTC
3 3 PC14-OSC32_IN
(5)
I/O PC14
(6)
OSC32_IN
4 4 PC15-OSC32_OUT
(5)
I/O PC15
(6)
OSC32_OUT
5 5 OSC_IN I/O FT OSC_IN PD0
(7)
6 6 OSC_OUT I/O FT OSC_OUT PD1
(7)
7 7 NRST I/O NRST
- 8 PC0 I/O PC0 ADC_IN10
- 9 PC1 I/O PC1 ADC_IN11
- 10 PC2 I/O PC2 ADC_IN12
- 11 PC3 I/O PC3 ADC_IN13
812 V
SSA
SV
SSA
913 V
DDA
SV
DDA
10 14 PA0-WKUP I/O PA0
WKUP/USART2_CTS/
ADC_IN0/
TIM2_CH1_ETR
(8)
11 15 PA1 I/O PA1
USART2_RTS/
ADC_IN1/TIM2_CH2
(8)
12 16 PA2 I/O PA2
USART2_TX/
ADC_IN2/TIM2_CH3
(8)
13 17 PA3 I/O PA3
USART2_RX/
ADC_IN3/TIM2_CH4
(8)
-18 V
SS_4
SV
SS_4
-19 V
DD_4
SV
DD_4
14 20 PA4 I/O PA4
SPI1_NSS
(8)
/ADC_IN4
USART2_CK/
15 21 PA5 I/O PA5 SPI1_SCK
(8)
/ADC_IN5
16 22 PA6 I/O PA6
SPI1_MISO
(8)
/ADC_IN6/
TIM3_CH1
(8)
17 23 PA7 I/O PA7
SPI1_MOSI
(8)
/ADC_IN7/
TIM3_CH2
(8)
- 24 PC4 I/O PC4 ADC_IN14