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 achieves throughputs CPU approaching 1 Million Instructions Per Second (MIPS) per MHz allowing the system designer to optimize power consumption versus processing speed.

FEATUREs
• High-performance, Low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller
• Non-volatile Program and Data Memories
   – 64K - 256KBytes of In-System Self-Programmable Flash
   – 4K - 8KBytes Boot Section
   – 2K - 4KBytes EEPROM
   – 4K - 16KBytes Internal SRAM
• Peripheral Features
   – Four-channel DMA Controller
   – Eight-channel Event System
   – Seven 16-bit Timer/Counters
      Four Timer/Counters with 4 Output Compare or Input Capture channels
      Three Timer/Counters with 2 Output Compare or Input Capture channels
      High Resolution Extensions on all Timer/Counters
      Advanced Waveform Extension on one Timer/Counter
   – One USB device interface
      USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant
      32 Endpoints with full configuration flexibility
   – Seven USARTs with IrDA support for one USART
   – AES and DES Crypto Engine
   – CRC-16 (CRC-CCITT) and CRC-32 (IEEE 802.3) Generator
   – Two Two-wire Interfaces with dual address match (I2C and SMBus compatible)
   – Three Serial Peripheral Interfaces (SPIs)
   – 16-bit Real Time Counter with Separate Oscillator
   – Two Eight-channel, 12-bit, 2MSPS Analog to Digital Converters
   – One Two-channel, 12-bit, 1MSPS Digital to Analog Converter
   – Four Analog Comparators with Window compare function, and current source feature
   – 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
      Up to 64 sense channels
• Special Microcontroller Features
   – Power-on Reset and Programmable Brown-out Detection
   – Internal and External Clock Options with PLL
   – Programmable Multi-level Interrupt Controller
   – Five Sleep Modes
   – Programming and Debug Interfaces
      JTAG (IEEE 1149.1 Compliant) Interface, including Boundary Scan
      PDI (Program and Debug Interface)
• I/O and Packages
   – 50 Programmable I/O Pins
   – 64-lead TQFP
   – 64-pad QFN
• 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
• USB connectivity
• HVAC
• Board control
• Sensor control
• Utility metering
• White goods
• Optical
• Medical applications