ST STM32U575 Series

Introduction
This application note is intended for system designers who require a hardware implementation overview of the development
board features, such as power supply, clock management, reset control, boot mode settings and debug management.
This document details how to use the STM32U575xx and STM32U585xx microcontrollers (also named STM32U575/585) and
describes the minimum hardware resources required to develop an application using these MCUs.
Detailed reference design schematics are also contained in this document with descriptions of the main components, interfaces
and modes.
Getting started with STM32U575/585 MCU hardware development
AN5373
Application note
AN5373 - Rev 1 - June 2021
For further information contact your local STMicroelectronics sales office.
www.st.com

ST STM32U575 Series Specifications

General

Series	STM32U575
Core	ARM Cortex-M33
Maximum Clock Frequency	160 MHz
Flash Memory	Up to 2 MB
SRAM	Up to 786 KB
GPIO Pins	Up to 114
DAC	12-bit
Communication Interfaces	USART, SPI, I2C, USB, CAN
Security Features	Secure Boot
Package	LQFP, WLCSP, BGA
Temperature Range	-40 °C to +85 °C

Summary

Introduction to STM32 U5 Hardware Development

General Information

Power Supply Management

Power Supplies Overview

Details the various voltage supplies (VDD, VDDA, VDDIO2, etc.) required by the MCUs.

Power Supply Schemes and Sequences

Illustrates power supply configurations and defines power-up/down sequences.

Reset and Supervisor Functions

Explains brownout reset, system reset, and backup domain reset.

Packages

Package Summary

Lists available packages and their key physical characteristics.

Pinout Summary

Details pin assignments for various STM32U575/585 packages.

Clocks

Clock Sources Overview

Introduces available clock sources like HSI, HSE, MSI, LSI, LSE, PLLs.

HSE Clock Configuration

Describes the High-Speed External clock source and its configurations.

Internal Clock Sources

Details HSI16, MSI, and LSE clock functionalities.

Boot Configuration

Boot Mode Selection

Explains how to select the boot memory address at startup using option bytes.

Embedded Bootloader and RSS

Covers the system memory bootloader and Root Secure Services.

Debug Management

SWJ-DP Debug Interface

Covers the Serial Wire/JTAG Debug Port interface and its functionality.

Pinout and Debug Port Pins

Details pin availability and assignments for debug interfaces.

SWD Pin Assignment

Describes the Serial Wire Debug pin configuration and usage.

Recommendations

PCB and Component Placement

Guidance on PCB layout, component placement, and grounding for optimal performance.

Power Supply Decoupling

Specifies capacitor placement and values for power supply decoupling.

Signal Integrity and IO Usage

Advice on handling other signals and managing unused I/Os for EMC and power.

Reference Design

Reference Design Description

Overview of the reference design schematics for STM32U575/585.

Component References

Lists the components used in the reference designs.