High-performance, Low-power Atmel® AVR® 8-bit Microcontroller Advanced RISC Architecture̶ 131 Powerful Instructions – Most Single-clock Cycle Execution̶ 32 × 8 General Purpose Working Registers̶ Fully Static Operation̶ Up to 20 MIPS Throughput at 20 MHz̶ On-chip 2-cycle Multiplier High Endurance Non-volatile Memory segments̶ 16K/32K/64K Bytes of In-System Self-programmable Flash program memory̶ 512B/1K/2K Bytes EEPROM̶ 1K/2K/4K Bytes Internal SRAM̶ Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM̶ Data retention: 20 years at 85C/100 years at 25C(1)̶ Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation̶ Programming Lock for Software Security JTAG (IEEE std. 1149.1 Compliant) Interface̶ Boundary-scan Capabilities According to the JTAG Standard̶ Extensive On-chip Debug Support̶ Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAGInterface Peripheral Features̶ Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes̶ One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, andCapture Mode̶ Real Time Counter with Separate Oscillator̶ Six PWM Channels̶ 8-channel, 10-bit ADC Differential mode with selectable gain at 1×, 10× or 200×̶ Byte-oriented Two-wire Serial Interface̶ Two Programmable Serial USART̶ Master/Slave SPI Serial Interface̶ Programmable Watchdog Timer with Separate On-chip Oscillator
