Key Features

High performance, low power Atmel? AVR? 8-bit microcontroller
Advanced RISC architecture
131 powerful instructions ? most single clock cycle execution
32 ? 8 general purpose working registers
Fully static operation
Up to 20 MIPS throughput at 20MHz
On-chip 2-cycle multiplier
High endurance non-volatile memory segments
4/8/16 Kbytes of in-system self-programmable flash program memory
256/512/512 bytes EEPROM
512/1K/1Kbytes internal SRAM
Write/erase cyles: 10,000 flash/100,000 EEPROM
Data retention: 20 years at 85?C/100 years at 25?C???
Optional boot code section with independent lock bits
In-system programming by on-chip boot program
True read-while-write operation
Programming lock for software security
QTouch? library support
Capacitive touch buttons, sliders and wheels
QTouch and QMatrix acquisition
Up to 64 sense channels
RAM: 1KBytes