Datasheet
Pinouts and pin descriptions STM32F051x4 STM32F051x6 STM32F051x8
32/121 DocID022265 Rev 6
7 E1 7 D5 4 4 NRST I/O RST -
Device reset input / internal reset output
(active low)
8 E3 - - - - PC0 I/O TTa - EVENTOUT ADC_IN10
9 E2 - - - - PC1 I/O TTa - EVENTOUT ADC_IN11
10 F2 - - - - PC2 I/O TTa - EVENTOUT ADC_IN12
11 G1 - - - - PC3 I/O TTa - EVENTOUT ADC_IN13
12 F1 8 D6 16 0 VSSA S -
(3)
Analog ground
13 H1 9 E5 5 5 VDDA S - - Analog power supply
14 G2 10 F6 6 6 PA0 I/O TTa -
USART2_CTS,
TIM2_CH1_ETR,
COMP1_OUT,
TSC_G1_IO1
ADC_IN0,
COMP1_INM6,
RTC_TAMP2,
WKUP1
15 H2 11 D4 7 7 PA1 I/O TTa -
USART2_RTS,
TIM2_CH2,
TSC_G1_IO2,
EVENTOUT
ADC_IN1,
COMP1_INP
16 F3 12 E4 8 8 PA2 I/O TTa -
USART2_TX,
TIM2_CH3,
TIM15_CH1,
COMP2_OUT,
TSC_G1_IO3
ADC_IN2,
COMP2_INM6
17 G3 13 F5 9 9 PA3 I/O TTa -
USART2_RX,
TIM2_CH4,
TIM15_CH2,
TSC_G1_IO4
ADC_IN3,
COMP2_INP
18 C2 - - - - PF4 I/O FT - EVENTOUT -
19 D2 - - - - PF5 I/O FT - EVENTOUT -
20 H3 14 C3 10 10 PA4 I/O TTa -
SPI1_NSS,
I2S1_WS,
USART2_CK,
TIM14_CH1,
TSC_G2_IO1
ADC_IN4,
COMP1_INM4,
COMP2_INM4,
DAC_OUT1
21 F4 15 D3 11 11 PA5 I/O TTa -
SPI1_SCK,
I2S1_CK, CEC,
TIM2_CH1_ETR,
TSC_G2_IO2
ADC_IN5,
COMP1_INM5,
COMP2_INM5
Table 13. Pin definitions (continued)
Pin number
Pin name
(function upon
reset)
Pin type
I/O structure
Notes
Pin functions
LQFP64
UFBGA64
LQFP48/UFQFPN48
WLCSP36
LQFP32
UFQFPN32
Alternate functions
Additional
functions
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