Features

? High Performance, Low Power Atmel?AVR? 8-Bit Microcontroller Family

? Advanced RISC Architecture

? 131 Powerful Instructions – Most Single Clock Cycle Execution

? 32 x 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

? 4/8/16/32KBytes of In-System Self-Programmable Flash program memory

? 256/512/512/1KBytes EEPROM

? 512/1K/1K/2KBytes 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

? Atmel? QTouch? library support

? Capacitive touch buttons, sliders and wheels

? QTouch and QMatrix? acquisition

? Up to 64 sense channels

? Peripheral Features

? Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode

? One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and

Capture Mode

? Real Time Counter with Separate Oscillator

? Six PWM Channels

? 8-channel 10-bit ADC in TQFP and QFN/MLF package

? Temperature Measurement

? 6-channel 10-bit ADC in PDIP Package

? Temperature Measurement

? Programmable Serial USART

? Master/Slave SPI Serial Interface

? Byte-oriented 2-wire Serial Interface (Philips I2C compatible)

? Programmable Watchdog Timer with Separate On-chip Oscillator

? On-chip Analog Comparator

? Interrupt and Wake-up on Pin Change