Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 32KB LQFP

Pin descriptions STM32L031x4/6

44/126 DS10668 Rev 6

- - - 2628284141 PB5 I/O FT -

SPI1_MOSI,

LPTIM1_IN1,

I2C1_SMBA,

TIM22_CH2

COMP2_INP

- A3252729294242 PB6 I/OFTf -

USART2_TX,

I2C1_SCL,

LPTIM1_ETR,

TIM21_CH1

COMP2_INP

- A4262830304343 PB7 I/OFTf -

USART2_RX,

I2C1_SDA,

LPTIM1_IN2

COMP2_INP,

VREF_PVD_IN

1 A5 27 1 31 31 44 44 BOOT0 I - - - -

- - - - - 32 45 45 PB8 I/O FTf - I2C1_SCL -

- - - - - - 46 46 PB9 I/O FTf -

EVENTOUT,

I2C1_SDA

- - 28 - 32 - 47 47 VSS S - - - -

- - 1 - 1 1 48 48 VDD S - - - -

1. VSS pins are connected to the exposed pad (see Figure 43: UFQFPN32 - 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch

quad flat package outline).

Table 15. Pin definitions (continued)

Pin Number

Pin name

(function

after reset)

type

I/O structure

Note

Alternate

functions

Additional functions

TSSOP20

WLCSP25

UFQFPN28

UFQFPN28 (STM32L031GxUxS only)

LQFP32

UFQFPN32

(1)

LQFP48

UFQFPN48

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