Introduction

Designers of STM32 microcontroller applications must be able to easily replace one microcontroller type by another in the same

product family or products from a different family.

Migrating an application to a different microcontroller is often needed when product requirements grow, putting extra demands

on performance, new features, or increasing the number of I/Os. The cost reduction objectives may also be an argument to

switch to smaller components and shrink the PCB area.

This application note analyzes the steps required to migrate from an existing design based on the STM32F401, STM32F410, or

STM32F411 lines, to the STM32H503 line microcontrollers.

This document lists the full set of features available for the STM32F401, STM32F410 and STM32F411 devices, and the

equivalent features on the STM32H503 line, and provides a guideline on both hardware and peripheral migration.

To fully benefit from this application note, the user must be familiar with the STM32 microcontroller family. For additional

information, refer to the product datasheets and reference manuals.

Migrating from STM32F401, STM32F410, and STM32F411 to STM32H503 MCUs

AN5852

Application note

AN5852 - Rev 1 - March 2023

For further information contact your local STMicroelectronics sales office.