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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

? Special Microcontroller Features

? Power-on Reset and Programmable Brown-out Detection

? Internal Calibrated Oscillator

? External and Internal Interrupt Sources

? Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby

? I/O and Packages

? 23 Programmable I/O Lines

? 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF

? Operating Voltage:

? 1.8 - 5.5V

? Temperature Range:

? -40?C to 85?C

? Speed Grade:

? 0 - 4MHz@1.8 - 5.5V, 0 - 10MHz@2.7 - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V

? Power Consumption at 1MHz, 1.8V, 25?C

? Active Mode: 0.2mA

? Power-down Mode: 0.1μA

? Power-save Mode: 0.75μA (Including 32kHz RTC)