~40 min read
Encyclopedic overview
AVR logo Various older AVR microcontrollers: ATmega8 in 28-pin narrow dual in-line package (DIP-28N), ATxmega128A1 in 100-pin thin quad flat pack (TQFP-100) package, ATtiny45 in 8-pin small outline (SO-8) package ATmega328P in 28-pin narrow dual in-line package (DIP-28N). It is commonly found on Arduino boards.
AVR is a family of microcontrollers developed since 1996 by Atmel, acquired by Microchip Technology in 2016. They are 8-bit RISC single-chip microcontrollers based on a modified Harvard architecture. AVR was one of the first microcontroller families to use on-chip flash memory for program storage, as opposed to one-time programmable ROM, EPROM, or EEPROM used by other microcontrollers at the time.
Excerpted from Wikipedia’s “Atmel AVR” article, available under the CC BY-SA 4.0 licence.