STM32L433CB datasheet(61/225 Pages) STMICROELECTRONICS

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DS11449 Rev 5

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STM32L433xx

Pinouts and pin description

Table 14. Legend/abbreviations used in the pinout table

Name

Abbreviation

Definition

Pin name

Unless otherwise specified in brackets below the pin name, the pin function during and after

reset is the same as the actual pin name

Pin type

Supply pin

Input only pin

I/O

Input / output pin

I/O structure

5 V tolerant I/O

3.6 V tolerant I/O

RST

Bidirectional reset pin with embedded weak pull-up resistor

Option for TT or FT I/Os

_f (1)

I/O, Fm+ capable

_l (2)

I/O, with LCD function supplied by VLCD

_u (3)

I/O, with USB function supplied by VDDUSB

_a (4)

I/O, with Analog switch function supplied by VDDA

Notes

Unless otherwise specified by a note, all I/Os are set as analog inputs during and after reset.

functions

Alternate

functions

Functions selected through GPIOx_AFR registers

Additional

functions

Functions directly selected/enabled through peripheral registers

1. The related I/O structures in Table 15 are: FT_f, FT_fa, FT_fl, FT_fla.

2. The related I/O structures in Table 15 are: FT_l, FT_fl, FT_lu.

3. The related I/O structures in Table 15 are: FT_u, FT_lu.

4. The related I/O structures in Table 15 are: FT_a, FT_la, FT_fa, FT_fla, TT_a, TT_la.

Table 15. STM32L433xx pin definitions

Pin Number

Pin functions

Alternate functions

Additional

functions

PE2

I/O

FT_l

TRACECK,

TSC_G7_IO1,

LCD_SEG38,

SAI1_MCLK_A,

EVENTOUT

PE3

I/O

FT_l

TRACED0,

TSC_G7_IO2,

LCD_SEG39,

SAI1_SD_B,

EVENTOUT

STM32L433CB Datasheet(PDF) 61 Page - STMicroelectronics

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