Introduction
This application note is intended for system designers who develop applications based on the STM32H7Sxx and STM32H7Rxx
MCUs.
This document provides an implementation overview of the following hardware features:
• Power supply
• Package selection
• Clock management
• Reset control
• Boot mode settings
•
Debug management.
STM32H7R3/7S3 and STM32H7R7/7S7 are product lines with different memory sizes, packages, and peripherals. In this
document, they are referred to as STM32H7Rx/7Sx.
This document describes the minimum hardware resources required to develop an application using STM32H7Rx/7Sx MCUs.
Table 1. Applicable products
Type Product lines
Microcontrollers STM32H7R3/7S3 and STM32H7R7/7S7
Getting started with STM32H7Rx/7Sx MCUs hardware development
AN5935
Application note
AN5935 - Rev 3 - January 2025
For further information, contact your local STMicroelectronics sales office.
www.st.com
1 General information
This document applies to STM32H7Rx/7Sx Arm
®
-based MCUs.
STM32H7Rx/7Sx MCUs are highly integrated microcontrollers that are based on the Arm
®
Cortex
®
-M7 32-bit
core.
Note: Arm and Cortex are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
Reference documents
[1]
Datasheet Arm
®
Cortex
®
‑
M7 32
‑
bit 600 MHz MCU, 64 KB flash, 620 KB RAM, Ethernet, 2x USB, 2x FD
‑
CAN,
advanced graphics and security, 2x12
‑
bit ADCs (DS14359)
[2]
Datasheet Arm
®
Cortex
®
‑
M7 32
‑
bit 600 MHz MCU, 64 KB flash, 620 KB RAM, Ethernet, 2x USB, 2x FD
‑
CAN,
advanced graphics, 2x12
‑
bit ADCs (DS14360)
[3] Application note Guidelines for oscillator design on STM8AF/AL/S and STM32 MCUs/MPUs (AN2867)
[4] Application note STM32 microcontroller system memory boot mode (AN2606)
[5] Errata sheet STM32H7Rxx/7Sxx device errata (ES0596)
[6]
Reference manual STM32H7Rx/7Sx Arm
®
‑
based 32
‑
bit MCUs (RM0477)
AN5935
General information
AN5935 - Rev 3
page 2/48
