Datasheet

Pinouts and pin description STM32F051x
30/105 Doc ID 022265 Rev 3
20 14 10 10 PA4 I/O TTa
SPI1_NSS/I2S1_WS,
USART2_CK, TIM14_CH1,
TSC_G2_IO1
ADC_IN4,
COMP1_INM4,
COMP2_INM4,
DAC1_OUT
21 15 11 11 PA5 I/O TTa
SPI1_SCK/I2S1_CK, CEC,
TIM2_CH1_ETR,
TSC_G2_IO2
ADC_IN5,
COMP1_INM5,
COMP2_INM5
22 16 12 12 PA6 I/O TTa
SPI1_MISO/I2S1_MCK,
TIM3_CH1, TIM1_BKIN,
TIM16_CH1,
COMP1_OUT,
TSC_G2_IO3, EVENTOUT
ADC_IN6
23 17 13 13 PA7 I/O TTa
SPI1_MOSI/I2S1_SD,
TIM3_CH2, TIM14_CH1,
TIM1_CH1N, TIM17_CH1,
COMP2_OUT,
TSC_G2_IO4, EVENTOUT
ADC_IN7
24 - - - PC4 I/O TTa EVENTOUT ADC_IN14
25 - - - PC5 I/O TTa TSC_G3_IO1 ADC_IN15
26 18 14 14 PB0 I/O TTa
TIM3_CH3, TIM1_CH2N,
TSC_G3_IO2, EVENTOUT
ADC_IN8
27 19 15 15 PB1 I/O TTa
TIM3_CH4, TIM14_CH1,
TIM1_CH3N, TSC_G3_IO3
ADC_IN9
28 20 - 16 PB2 I/O FT
(3)
TSC_G3_IO4
29 21 - - PB10 I/O FT
I2C2_SCL, CEC,
TIM2_CH3, TSC_SYNC
30 22 - - PB11 I/O FT
I2C2_SDA, TIM2_CH4,
TSC_G6_IO1, EVENTOUT
31 23 16 0 VSS S Ground
32 24 17 17 VDD S Digital power supply
33 25 - - PB12 I/O FT
SPI2_NSS, TIM1_BKIN,
TSC_G6_IO2, EVENTOUT
34 26 - - PB13 I/O FT
SPI2_SCK, TIM1_CH1N,
TSC_G6_IO3
35 27 - - PB14 I/O FT
SPI2_MISO, TIM1_CH2N,
TIM15_CH1, TSC_G6_IO4
36 28 - - PB15 I/O FT
SPI2_MOSI, TIM1_CH3N,
TIM15_CH1N, TIM15_CH2
RTC_REFIN
37 - - - PC6 I/O FT TIM3_CH1
Table 13. Pin definitions (continued)
Pin number
Pin name
(function after
reset)
Pin type
I/O structure
Notes
Pin functions
LQFP64 LQFP48 LQFP32
UFQFPN32
Alternate functions Additional functions