4 Hardware Guidelines

This section contains guidelines for designing or reviewing electrical schematics using AVR 8-bit microcontrollers. The information presented here is just a brief overview of the most common topics. For more detailed information, suitable application notes are presented where applicable.

The Hardware Guidelines covers the following topics:

General guidelines
Power supply
RESET
UPDI (Unified Program and Debug Interface)
Crystal Oscillators
External voltage references

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.