The ATmega1280 is a high-performance, low-power microcontroller in the AVR® 8-bit microcontroller family that features 135 powerful instructions, most single-clock cycle execution, 32 x 8 general-purpose working registers, full static operation, up to 16 MIPS throughput at 16 MHz, an on-chip 2-cycle multiplier, 64K/128K/256K bytes of in-system self-programmable Flash, 4K bytes EEPROM, 8K bytes internal SRAM, 10,000 Flash/100,000 EEPROM write/erase cycles, 20 years of data retention at 85°C/100 years of data retention at 25°C, an optional boot code section with independent lock bits, in-system programming by on-chip boot program, true read-while-write operation, software security programming lock, up to 64K bytes optional external memory space, JTAG (IEEE std. 1149.1 compliant) interface, boundary-scan capabilities according to the JTAG standard, extensive on-chip debug support, programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG interface