STM32U073RCT3TR datasheet(31/146 Pages) STMICROELECTRONICS

Part #	STM32U073RCT3TR

Description	Ultra-low-power Arm® Cortex®-M0 32-bit MCU, up to 256-Kbyte flash memory, 40-Kbyte SRAM, USB, LCD

PDF	146 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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31 / 146 page

4.2

Pin description

Table 11. 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

I/O

Input /output pin

I/O structure

5V-tolerant I/O

3.6V-tolerant I/O

RST

Bidirectional reset pin with embedded weak

pull-up resistor

Options for TT and FT I/Os

I/O with analog switch function supplied by

VDDA

I2C Fm+ capable I/O

I/O with LCD function supplied by VLCD

I/O with USB function, supplied by VDDUSB

Notes

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

reset.

Pin functions

Alternate functions

Functions selected through GPIOx_AFR registers

Additional functions

Functions directly selected/enabled through peripheral registers

Table 12. STM32U073x8/B/C pin/ball definition

Pin Number

Pin name (function

after reset)

Note

Alternate functions

Additional functions

PE3

I/O

TIM3_CH1, EVENTOUT

VBAT

PC13

I/O

(1)(2)

LPTIM1_CH3, LPTIM3_CH3, EVENTOUT

WKUP2, TAMP_IN1,

RTC_TS/RTC_OUT1

C12

PC14-OSC32_IN

I/O

(1)(2)

EVENTOUT

OSC32_IN

STM32U073RCT3TR Datasheet(PDF) 31 Page - STMicroelectronics

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