Datasheet

Pinouts and pin description STM32F050xx
26/97 Doc ID 023683 Rev 1
Table 8. Pin definitions
Pin number
Pin name
(function after
reset)
Pin type
I/O structure
Notes
Pin functions
LQFP48
UFQFPN32 UFQFPN28
TSSOP20
Alternate functions
Additional
functions
1 - - - VBAT S Backup power supply
2- - - PC13 I/OTC
(1)(2)
RTC_TAMP1,
RTC_TS,
RTC_OUT,
WKUP2
3- - -
PC14/OSC32_IN
(PC14)
I/O TC
(1)(2)
OSC32_IN
4- - -
PC15/OSC32_OUT
(PC15)
I/O TC
(1)(2)
OSC32_OUT
52 2 2
PF0/OSC_IN
(PF0)
I/O FT OSC_IN
63 3 3
PF1/OSC_OUT
(PF1)
I/O FT OSC_OUT
7 4 4 4 NRST I/O RST
Device reset input / internal reset output
(active low)
8 0 - - VSSA S Analog ground
9 5 5 5 VDDA S Analog power supply
10 6 6 6 PA0 I/O TTa
TIM2_CH1_ETR,
USART1_CTS
(3)
ADC_IN0,
RTC_TAMP2,
WKUP1
11 7 7 7 PA1 I/O TTa
TIM2_CH2,
EVENTOUT,
USART1_RTS
(3)
ADC_IN1
12 8 8 8 PA2 I/O TTa
TIM2_CH3,
USART1_TX
(3)
ADC_IN2
13 9 9 9 PA3 I/O TTa
TIM2_CH4,
USART1_RX
(3)
ADC_IN3
14 10 10 10 PA4 I/O TTa
SPI1_NSS,
I2S1_WS,
TIM14_CH1,
USART1_CK
(3)
ADC_IN4
15 11 11 11 PA5 I/O TTa
SPI1_SCK,
I2S1_CK,
TIM2_CH1_ETR
ADC_IN5