We work with two families of Atmel microcontrollers: the AT89 series, compatible with MCS-51, and the AT90 series with RISC architecture. Atmel's key feature is Flash program memory, which speeds up programming and shortens the development cycle.
120instructions in the base set
32general-purpose registers
up to 20 MIPSperformance
AVR controllers use a Harvard architecture and include a hardware multiplier, ports, timers/counters, serial interfaces, ADCs and comparators.
AVR series
tiny AVR
tiny
Low-cost microcontrollers in 8-pin packages.
classic AVR
classic
The main series: up to 16 MIPS, up to 8 KB Flash, 128–512 bytes of RAM.
mega AVR
mega
For complex tasks: up to 6 MIPS, up to 128 KB Flash, up to 4 KB of RAM.