The ATMEGA1281-16AU is a 8-bit low-power CMOS Microcontroller Unit based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega640/1280/1281/2560/2561 achieves throughputs approaching 1MIPS per MHz allowing the system designed to optimize power consumption versus processing speed. It offers the QTouch? library for embedding capacitive touch buttons, sliders and wheels functionality into AVR microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully debounced reporting of touch keys and includes Adjacent Key Suppression? (AKS?) technology for unambiguous detection of key events. The easy-to-use QTouch Suite toolchain allows you to explore, develop and debug your own touch applications. The AVR is supported with a full suite of program and system development tools including: C compilers, macro assemblers, program debugger/simulators, in-circuit emulators and evaluation kits.
Advanced RISC architecture
32 x 8 General purpose working registers
Fully static operation
Up to 16MIPS throughout at 16MHz
On-chip 2-cycle multiplier
High endurance non-volatile memory segments
4Kbytes EEPROM
8kB Internal SRAM
Optional boot code section with independent lock bits
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