Datasheet

Pin descriptions STM32L031x4/6
42/126 DS10668 Rev 6
- - - - - - 26 26 PB13 I/O FT -
SPI1_SCK,
MCO,
TIM21_CH1,
LPUART1_CTS
-
- - - - - - 27 27 PB14 I/O FT -
SPI1_MISO,
RTC_OUT,
TIM21_CH2,
LPUART1_RTS/
LPUART1_DE
-
- - - - - - 28 28 PB15 I/O FT -
SPI1_MOSI,
RTC_REFIN
-
- C1181818182929 PA8 I/O FT -
MCO,
LPTIM1_IN1,
EVENTOUT,
USART2_CK,
TIM2_CH1
-
17 B1 19 19 19 19 30 30 PA9 I/O FTf -
MCO,
I2C1_SCL,
USART2_TX,
TIM22_CH1
-
18 C2 20 20 20 20 31 31 PA10 I/O FTf -
I2C1_SDA,
USART2_RX,
TIM22_CH2
-
- - - - 21 21 32 32 PA11 I/O FT -
SPI1_MISO,
EVENTOUT,
USART2_CTS,
TIM21_CH2,
COMP1_OUT
-
Table 15. Pin definitions (continued)
Pin Number
Pin name
(function
after reset)
Pin
type
I/O structure
Note
Alternate
functions
Additional functions
TSSOP20
WLCSP25
UFQFPN28
UFQFPN28 (STM32L031GxUxS only)
LQFP32
UFQFPN32
(1)
LQFP48
UFQFPN48
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