Features High-performance, Low-power 8/16-bit Atmel® AVR® XMEGATM Microcontroller Non-volatile Program and Data Memories – 64 KB - 256 KB of In-System Self-Programmable Flash – 4 KB - 8 KB Boot Code Section with Independent Lock Bits – 2 KB - 4 KB EEPROM – 4 KB - 16 KB Internal SRAM Peripheral Features – Four-channel DMA Controller with support for external requests – 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 – Seven USARTs      IrDA Extension on 1 USART – AES and DES Crypto Engine – Two Two-wire Interfaces with dual address match (I2C and SMBus compatible) – Three SPI (Serial Peripheral Interfaces) – 16-bit Real Time Counter with Separate Oscillator – Two Eight-channel, 12-bit, 2 Msps Analog to Digital Converters – One Two-channel, 12-bit, 1 Msps Digital to Analog Converter – Four Analog Comparators with Window compare function – External Interrupts on all General Purpose I/O pins – Programmable Watchdog Timer with Separate On-chip Ultra Low Power Oscillator Special Microcontroller Features – Power-on Reset and Programmable Brown-out Detection – Internal and External Clock Options with PLL – Programmable Multi-level Interrupt Controller – Sleep Modes: Idle, Power-down, Standby, Power-save, Extended Standby – Advanced Programming, Test and Debugging Interfaces      JTAG (IEEE 1149.1 Compliant) Interface for test, debug and programming      PDI (Program and Debug Interface) for programming, test and debugging I/O and Packages – 50 Programmable I/O Lines – 64-lead TQFP – 64-pad QFN Operating Voltage – 1.6 – 3.6V Speed performance – 0 – 12 MHz @ 1.6 – 3.6V – 0 – 32 MHz @ 2.7 – 3.6V