Datasheet

STM32F103xC, STM32F103xD, STM32F103xE Pinouts and pin descriptions
Doc ID 14611 Rev 8 31/130
K1 H1 - - 20 31 V
REF-
SV
REF-
L1 J1
F7
(7)
-2132 V
REF+
SV
REF+
M1 K1 G8 13 22 33 V
DDA
SV
DDA
J2 G2 F6 14 23 34 PA0-WKUP I/O PA0
WKUP/USART2_CTS
(8)
ADC123_IN0
TIM2_CH1_ETR
TIM5_CH1/TIM8_ETR
K2 H2 E6 15 24 35 PA1 I/O PA1
USART2_RTS
(8)
ADC123_IN1/
TIM5_CH2/TIM2_CH2
(8)
L2 J2 H8 16 25 36 PA2 I/O PA2
USART2_TX
(8)
/TIM5_CH3
ADC123_IN2/
TIM2_CH3
(8)
M2 K2 G7 17 26 37 PA3 I/O PA3
USART2_RX
(8)
/TIM5_CH4
ADC123_IN3/TIM2_CH4
(8)
G4 E4 F5 18 27 38 V
SS_4
SV
SS_4
F4 F4 G6 19 28 39 V
DD_4
SV
DD_4
J3 G3 H7 20 29 40 PA4 I/O PA4
SPI1_NSS
(8)
/
USART2_CK
(8)
DAC_OUT1/ADC12_IN4
K3 H3 E5 21 30 41 PA5 I/O PA5
SPI1_SCK
(8)
DAC_OUT2 ADC12_IN5
L3 J3 G5 22 31 42 PA6 I/O PA6
SPI1_MISO
(8)
TIM8_BKIN/ADC12_IN6
TIM3_CH1
(8)
TIM1_BKIN
M3 K3 G4 23 32 43 PA7 I/O PA7
SPI1_MOSI
(8)
/
TIM8_CH1N/ADC12_IN7
TIM3_CH2
(8)
TIM1_CH1N
J4 G4 H6 24 33 44 PC4 I/O PC4 ADC12_IN14
K4 H4 H5 25 34 45 PC5 I/O PC5 ADC12_IN15
L4 J4 H4 26 35 46 PB0 I/O PB0
ADC12_IN8/TIM3_CH3
TIM8_CH2N
TIM1_CH2N
M4 K4 F4 27 36 47 PB1 I/O PB1
ADC12_IN9/TIM3_CH4
(8)
TIM8_CH3N
TIM1_CH3N
J5 G5 H3 28 37 48 PB2 I/O FT PB2/BOOT1
M5 - - - - 49 PF11 I/O FT PF11 FSMC_NIOS16
L5 - - - - 50 PF12 I/O FT PF12 FSMC_A6
Table 5. High-density STM32F103xx pin definitions (continued)
Pins
Pin name
Type
(1)
I / O Level
(2)
Main
function
(3)
(after reset)
Alternate functions
(4)
LFBGA144 LFBGA100
WLCSP64
LQFP64
LQFP100 LQFP144
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