STMicroelectronics AN901 EMC Guidelines for Microcontroller-Based Applications

This document provides guidelines for designers of microcontroller-based applications so that the optimum level of EMC performances can be achieved.

Brand: STMicroelectronics
Category: microcontrollers
Document type: Application Note
Language: English
Pages: 14
File format: PDF
File size: 83 KB
Published: 07 August, 2012
Updated: 30 September, 2023
MD5 checksum: E66D9F2B88390513CD5488BC8B967359
PDF: STMicroelectronics AN901 EMC Guidelines for Microcontroller-Based Applications PDF

About this manual

This document outlines Electromagnetic Compatibility (EMC) guidelines specifically designed for microcontroller-based applications. It emphasizes the importance of addressing EMC issues early in the design phase to avoid costly corrections during production. The note covers noise sources, noise carriers, and affected areas within microcontroller systems.

What's inside

Definition of Terms
EMC Standards
Noise Sources
Noise Carriers
Printed Circuit Board
Component Position
Ground and Power Supply
Decoupling
Oscillator
Programming EMC-Hardened Software

Specifications

Standard decoupler capacitor value	100-yF pool capacitor
High frequency capacitor value	0.1-LF

Frequently asked questions

What is the standard decoupler for microcontrollers?

The standard decoupler is a 100-yF pool capacitor in parallel with a 0.1-LF high frequency capacitor.

Which microcontrollers have an integrated watchdog?

STMicroelectronics ST62 microcontrollers have a watchdog integrated in the component.

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