Features High-performance, low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller Nonvolatile program and data memories – 64K - 128KBytes of in-system self-programmable flash – 4K - 8KBytes boot section – 2KBytes EEPROM – 4K - 8KBytes internal SRAM Peripheral Features – Two-channel DMA controller – Four-channel event system – Two 16-bit timer/counters      One timer/counter with 4 output compare or input capture channels      One timer/counter with 2 output compare or input capture channels      High resolution extensions one timer/counter      Advanced waveform extension (AWeX) on timer/counter      Split mode on 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 – One USART with IrDA support – AES and DES crypto engine – CRC-16 (CRC-CCITT) and CRC-32 (IEEE 802.3) generator – One two-wire interface with dual address match (I2C and SMBus compatible) – One serial peripheral interface (SPI) – 16-bit Real Time Counter (RTC) with separate oscillator – Liquid Crystal Display      4x25 segment driver      Built in contrast control      ASCII character mappingGra      Flexible SWAP of segment and common terminals buses – One eight-channel, 12-bit, 300 thousand SPS Analog to Digital Converter – Two 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 Special microcontroller features – Power-on reset and programmable brown-out detection – Internal and external clock options with PLL – Programmable multilevel 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 – 36 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