Atmega 8 bit avr microcontrollers atmel atmega168p 20p the atmega168p 20pu 8 bit microcontroller 1k dil 28 is from a range of high performance microcontrollers featuring a wide range of peripherals megaavr offers substantial program and data memory and performance approaching 1 mips per mhz shares the same avr instruction set and memory organisation as attiny allowing for easy migration atmel atmega168p 20pu 8 bit microcontroller 1k dil28