Atmel

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⁽¹⁾ 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 : 512Bytes