8-bit AVR is a 8-bit microcontroller family from microchip with RISC architecture. The controllers are divided into the following groups:
| ATmega | Large AVR-Controller with up to 256 KB flash memory in 28 to 100 pin housings and with integrated hardware multiplier |
| ATtiny | small AVR-Controller with up to 16 KB flash memory in 6 to 20 pin housings |
| AT90USB | ATmega with integrated usb controller |
| AT90CAN | ATmega with can controller |