说明：  High-performance, Low-power Atmel AVR 8-bit Microcontroller 􀁺 Advanced RISC Architecture ̶ 131 Powerful Instructions – Most Single-clock Cycle Execution ̶ 32 x 8 General Purpose Working Registers ̶ Fully Static Operation ̶ Up to 16MIPS Throughput at 16MHz ̶ On-chip 2-cycle Multiplier 􀁺 High Endurance Non-volatile Memory segments ̶ 16KBytes of In-System Self-programmable Flash program memory ̶ 512Bytes EEPROM ̶ 1KByte Internal SRAM ̶ Write/Erase Cycles: 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