ST STM32H723 - User Manual

Introduction
This application note is intended for system designers who develop applications based on STM32H723/33, STM32H725/35 and
STM32H730 microcontroller lines, and need an implementation overview of the following hardware features:
• Power supply
• Package selection
• Clock management
• Reset control
• Boot mode settings
• Debug management.
This document describes the minimum hardware resources required to develop an application based on STM32H723/33,
STM32H725/35 and STM32H730 microcontrollers.
Reference documents
• STM32H72x and STM32H73x datasheets
• STM32H723/733, STM32H725/735 and STM32H730 advanced Arm
®
-based 32-bit MCUs (RM0468)
• STM32H723/733, STM32H725/735 and STM32H730 errata sheet (ES0491)
The following documents are available on www.st.com website.
• Oscillator design guide for STM8S, STM8A and STM32 microcontrollers application note (AN2867)
• STM32 microcontroller system memory boot mode application note (AN2606).
Getting started with STM32H723/733, STM32H725/735 and STM32H730 Value
Line hardware development
AN5419
AN5419 - Rev 2 - May 2020
For further information contact your local STMicroelectronics sales office.
www.st.com

ST STM32H723 Specifications

General

Brand	ST
Model	STM32H723
Category	Microcontrollers
Language	English

Summary

General Information

Power Supply Configuration and Management

Introduction to Power Supplies

Overview of the power supply requirements and features for the microcontrollers.

External Power Supplies and Components

Details on external components and pin connections for power supply inputs.

Power Domains and Voltage Regulators

Explains core, analog, USB, battery, LDO, and SMPS power domains and regulator configurations.

Reset and Power Supply Supervisor Features

Reset and Supervisor Functionality

Covers POR, PDR, BOR, PVD, AVD, system reset, and bypass mode functionalities.

Clock Generation and Management

Introduction to Clock Sources

Overview of available internal and external clock sources and PLLs.

Clock Sources and Security Systems

Details HSE/LSE bypass, crystal oscillators, CSS, and CRS for clock management.

Alternate Function Pin Mapping

Analog Inputs for ADCs

Mapping of analog inputs to ADC1, ADC2, and ADC3, including specialized pads.

ADC Pin Pad Configurations

Describes different pin pad configurations (Pxy_C, Pxy) for ADC performance.

Microcontroller Boot Configuration

Boot Mode Selection and Pin Connection

Explains boot mode selection via option bytes and the BOOT pin.

System Bootloader Mode

Details the embedded bootloader and its communication peripherals.

Debugging Interfaces and Ports

Introduction to Debugging

Overview of host-to-target interface components for debugging.

SWJ Debug Port Configuration

Covers SWJ-DP, TPIU trace port, external triggers, and pin assignments.

Design and Layout Recommendations

PCB Design Best Practices

Guidelines for PCB layout, component positioning, ground, and power supply.

Signal Integrity and Feature Management

Advice on signal handling, unused I/Os, and features for EMC performance.

PCB Routing Guidelines for High-Speed Signals

PCB Stack-up and Signal Layout Basics

Covers PCB stack-up, crystal oscillator, and power supply decoupling.

High-Speed Signal Layout for Interfaces

Details layout guidelines for SDMMC, FMC, Octo-SPI, DFSDM, and ETM interfaces.

Typical Use Case Examples

Document Conclusion