AVR microcontrollers: Difference between revisions

Revision as of 06:02, 21 January 2025

Revision as of 08:03, 21 January 2025

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[[File:ATMEGA328P-PU.jpg|right|thumb|[[ATmega328]]P in 28-pin narrow dual in-line package ([[Dual in-line package|DIP]]-28N). It is commonly found on [[Arduino]] boards.]]

'''AVR''' is a family of the [[microcontrollers]] developed since 1996 by [[Atmel]], acquired by [[Microchip Technology]] in 2016. These are [[modified Harvard architecture]] [[8-bit]] [[Reduced instruction set computer|RISC]] single-chip microcontrollers. AVR was one of the first microcontroller families to use on-chip [[flash memory]] for program storage, as opposed to [[Programmable read-only memory|one-time programmable ROM]], [[EPROM]], or [[EEPROM]] used by other microcontrollers at the time.

AVR microcontrollers find many applications as [[embedded system]]s. They are especially common in hobbyist and educational embedded applications, popularized by their inclusion in many of the [[Arduino]] line of [[open hardware]] development boards.

== History ==

The AVR architecture was conceived by two students at the [[Norwegian Institute of Technology]] (NTH),<ref>Since 1996, NTH has become part of the [[Norwegian University of Science and Technology]] (NTNU)</ref> Alf-Egil Bogen<ref>[https://web.archive.org/web/20170222054354/https://alfbogen.com/about/ alfbogen.com] blog</ref> and Vegard Wollan.<ref name="storyofavr">Archived at [https://ghostarchive.org/varchive/youtube/20211211/HrydNwAxbcY Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20131017175119/http://www.youtube.com/watch?v=HrydNwAxbcY Wayback Machine]{{cbignore}}: {{cite web|url=https://www.youtube.com/watch?v=HrydNwAxbcY|title=The Story of AVR|publisher=youtube.com}}{{cbignore}}</ref>