ST STM32F405 Series User Manual

October 2018 AN4488 Rev 7 1/50
AN4488
Application note
Getting started with STM32F4xxxx MCU hardware development
Introduction
This application note is intended for system designers who require an overview of the
hardware implementation of the development board, with focus on features like
• power supply
• package selection
• clock management
• reset control
• boot mode settings
• debug management.
This document shows how to use the high-density high-performance microcontrollers listed
in
Table 1, and describes the minimum hardware resources required to develop an
application based on those products.
Detailed reference design schematics are also contained in this document, together with
descriptions of the main components, interfaces and modes.
Table 1. Applicable products
Type Part numbers and Product lines
Microcontrollers
STM32F401xB / STM32F401xC
STM32F401xD / STM32F401xE
STM32F405/415 line
STM32F407/417 line
STM32F410x8 / STM32F410xB
STM32F411xC / STM32F411xE
STM32F412xE / STM32F412xG
STM32F413/423 line
STM32F427/437 line
STM32F429/439 line
STM32F446 line
STM32F469/479 line
www.st.com

ST STM32F405 Series Specifications

General

Core Size	32-bit
Maximum CPU Clock Speed	168 MHz
Flash Memory Size	1 MB
RAM Size	192 KB
ADC Channels	Up to 16
DAC Channels	2
I2C Interfaces	3
SPI Interfaces	3
CPU Core	ARM Cortex-M4
Operating Voltage	1.8 V to 3.6 V
Timers	Up to 17
Peripherals	DMA, RTC, CRC
Operating Temperature	-40°C to +85°C
Package / Case	LQFP, WLCSP

Summary

STM32F4 Power Supply Management

System Reset and Power Supervisor Circuits

System Reset Mechanisms and NRST Pin

Explains system reset events, sources, and the NRST pin functionality.

Power-On/Down Reset and Voltage Detection

Covers POR/PDR, PVD, and the role of the PDR_ON pin for power supply supervision.

STM32F4 Package Options and Selection

STM32F4 Boot Mode Configuration

Explanation of the three boot modes (Flash, System Memory, SRAM) selectable via BOOT pins.

STM32F4 Debugging Interfaces and Tools

SWJ Debug Port: Serial Wire and JTAG

Details on the Serial Wire/JTAG Debug Port (SWJ-DP) integrating JTAG and SW interfaces.

STM32F4 Clock Sources and Configuration

PCB Routing Guidelines for STM32F4 Devices

PCB Stack-up Design for High-Speed Signals

Guidance on designing PCB stack-ups for high-speed signals, including 4, 6, and 8-layer examples.

Power Supply Decoupling and Filtering

High-Speed Signal Layout Best Practices

Package Layout Recommendations: BGA and WLCSP

Frequently Asked Questions (FAQ) for STM32F4

Troubleshooting Common MCU Issues

Troubleshooting common root causes for MCU malfunction, such as power, reset, and boot pins.