Datasheet

DocID027973 Rev 5 37/119
STM32L011x3/4 Pin descriptions
42
Table 13. Pin definitions
Pin number
Pin name
(function
after reset)
Pin type
I/O structure
Notes
Pin functions
TSSOP14
UFQFPN20
TSSOP20
UFQFPN28
LQFP32
UFQFPN32
(1)
WLCSP25
Alternate functions
Additional
functions
212222B5
PC14-
OSC32_IN
I/O FT - - OSC32_IN
323333C5
PC15-
OSC32_OUT
I/O TC - - OSC32_OUT
434444D5 NRST I/ORST
(2)
--
1045555C4 VDDA S -
(3)(4)
--
556666E5PA0-CK_INI/OTTa -
USART2_RX,
LPTIM1_IN1,
TIM2_CH1,
USART2_CTS,
TIM2_ETR,
LPUART1_RX,
COMP1_OUT
COMP1_INM,
ADC_IN0,
RTC_TAMP2/WKU
P1/CK_IN
667777B4 PA1 I/OFT -
EVENTOUT,
LPTIM1_IN2,
TIM2_CH2,
I2C1_SMBA,
USART2_RTS_DE,
TIM21_ETR,
LPUART1_TX
COMP1_INP,
ADC_IN1
- - 8888D4 PA2 I/OTTa -
TIM21_CH1,
TIM2_CH3,
USART2_TX,
LPUART1_TX,
COMP2_OUT
COMP2_INM,
ADC_IN2,
RTC_TAMP3/RTC_
TS/RTC_OUT/WKU
P3
- - 9999E4 PA3 I/OFT -
TIM21_CH2,
TIM2_CH4,
USART2_RX,
LPUART1_RX
COMP2_INP,
ADC_IN3
7 7 10 10 10 10 B3 PA4 I/O TTa -
SPI1_NSS,
LPTIM1_IN1,
LPTIM1_ETR,
I2C1_SCL,
USART2_CK,
TIM2_ETR,
LPUART1_TX,
COMP2_OUT
COMP1_INM,
COMP2_INM,
ADC_IN4
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