Datasheet

DocID022265 Rev 6 35/121
STM32F051x4 STM32F051x6 STM32F051x8 Pinouts and pin descriptions
36
45 B8 33 A1 22 22 PA12 I/O FT -
USART1_RTS,
TIM1_ETR,
COMP2_OUT,
TSC_G4_IO4,
EVENTOUT
-
46 A8 34 B1 23 23
PA13
(SWDIO)
I/O FT
(6)
IR_OUT,
SWDIO
-
47 D6 35 - - - PF6 I/O FT - I2C2_SCL -
48 E6 36 - - - PF7 I/O FT - I2C2_SDA -
49 A7 37 B2 24 24
PA14
(SWCLK)
I/O FT
(6)
USART2_TX,
SWCLK
-
50 A6 38 A2 25 25 PA15 I/O FT -
SPI1_NSS,
I2S1_WS,
USART2_RX,
TIM2_CH1_ETR,
EVENTOUT
-
51B7---- PC10 I/OFT - -
52B6---- PC11 I/OFT - -
53 C5 - - - - PC12 I/O FT - -
54 B5 - - - - PD2 I/O FT - TIM3_ETR -
55 A5 39 B3 26 26 PB3 I/O FT -
SPI1_SCK,
I2S1_CK,
TIM2_CH2,
TSC_G5_IO1,
EVENTOUT
-
56 A4 40 A3 27 27 PB4 I/O FT -
SPI1_MISO,
I2S1_MCK,
TIM3_CH1,
TSC_G5_IO2,
EVENTOUT
-
57 C4 41 E6 28 28 PB5 I/O FT -
SPI1_MOSI,
I2S1_SD,
I2C1_SMBA,
TIM16_BKIN,
TIM3_CH2
-
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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