Features

 High Performance, Low Power 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

 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

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