STMicroelectronics AN1709 EMC Design Guide for Microcontrollers Application Note

This application note provides an overview of ST microcontrollers' EMC features and compliance standards to help application designers achieve optimum EMC performance.


STMicroelectronics AN1709 EMC Design Guide for Microcontrollers Application Note - cover page
Brand
STMicroelectronics
Document type
Application Note
Language
English
Pages
38
File format
PDF
File size
657 KB
Published
07 August, 2012
Updated
30 September, 2023
MD5 checksum
FC88133025921BF25E004D65D63CB13A

About this manual

This document serves as an EMC design guide specifically for ST Microcontrollers. It addresses the increasing demand for high-performance microcontrollers by explaining how noise emission and sensitivity have increased, necessitating specific hardening techniques in firmware, PCB layout, and system design.

The note details the characterization of ST microcontrollers regarding Electromagnetic Susceptibility (EMS) and Electromagnetic Interference (EMI). It covers functional tests such as ElectroStatic Discharge (ESD) and Fast Transient Burst (FTB), defines severity levels and behavior classes based on industry standards, and outlines specific design strategies including internal circuitry features like Low Voltage Detectors and I/O properties.

What's inside

  • EMC Definitions
  • Electromagnetic Susceptibility (EMS)
  • Functional EMS Test
  • Latch-Up Tests
  • Absolute Electrical Sensitivity
  • Electromagnetic Interference (EMI)
  • ST MCU Design Strategy
  • Susceptibility Features
  • Emission Control
  • EMC Guidelines for Applications

Specifications

Document TypeApplication Note
Target Product FamilyST Microcontrollers

Frequently asked questions

What is the purpose of this document?

This note aims to explain ST Microcontroller EMC features and compliance standards to help application designers reach the optimum level of EMC performance.

Which standard is used for the Functional ElectroStatic Discharge Test?

The F_ESD qualification test uses standards given in Table 1, specifically EN 61000-4-2 and IEC 1000-4-2.

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