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Overview

The Atmel AVR XMEGA is a family of low power, high performance, and peripheral rich 8/16-bit microcontrollers based on the AVR enhanced RISC architecture. By executing instructions in a single clock cycle, the AVR XMEGA devices achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system designer to optimize power consumption versus processing speed.

The AVR CPU combines a rich instruction set with 32 general purpose working registers. All 32 registers are directly connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in a single instruction, executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs many times faster than conventional single-accumulator or CISC based microcontrollers.

Features

? High-performance, low-power Atmel? AVR? XMEGA? 8/16-bit Microcontroller

? Nonvolatile program and data memories

– 16K - 128KBytes of in-system self-programmable flash

– 4K - 8KBytes boot section

– 1K - 2KBytes EEPROM

– 2K - 8KBytes internal SRAM

? Peripheral Features

– Four-channel event system

– Four 16-bit timer/counters

Three timer/counters with four output compare or input capture channels

One timer/counter with two output compare or input capture channels

High-resolution extension on two timer/counters

Advanced waveform extension (AWeX) on one timer/counter

– Two USARTs with IrDA support for one USART

– Two Two-wire interfaces with dual address match (I2C and SMBus compatible)

– Two serial peripheral interfaces (SPIs)

– CRC-16 (CRC-CCITT) and CRC-32 (IEEE 802.3) generator

– 16-bit real time counter (RTC) with separate oscillator

– One twelve-channel, 12-bit, 200ksps Analog to Digital Converter

– Two Analog Comparators with window compare function, and current sources

– External interrupts on all general purpose I/O pins

– Programmable watchdog timer with separate on-chip ultra low power oscillator

– QTouch? library support Capacitive touch buttons, sliders and wheels

? Special microcontroller features

– Power-on reset and programmable brown-out detection

– Internal and external clock options with PLL and prescaler

– Programmable multilevel interrupt controller

– Five sleep modes

– Programming and debug interface PDI (program and debug interface)

? I/O and packages

– 34 programmable I/O pins

– 44 - lead TQFP

– 44 - pad VQFN/QFN

– 49 - ball VFBGA

? Operating voltage

– 1.6 – 3.6V

? Operating frequency

– 0 – 12MHz from 1.6V

– 0 – 32MHz from 2.7V

Typical Applications

? Industrial control ? Climate control ? Low power battery applications

? Factory automation ? RF and ZigBee? ? Power tools

? Building control ? Motor control ? HVAC

? Board control ? Sensor control ? Utility metering

? White goods ? Optical ? Medical applications