Features High-performance, Low-power 8/16-bit Atmel® AVR® XMEGA® Microcontroller Non-volatile Program and Data Memories – 16 KB - 128 KB of In-System Self-Programmable Flash – 4 KB - 8 KB Boot Code Section with Independent Lock Bits – 1 KB - 2 KB EEPROM – 2 KB - 8 KB Internal SRAM Peripheral Features – Four-channel Event System – Four 16-bit Timer/Counters      Three Timer/Counters with 4 Output Compare or Input Capture channels      One Timer/Counter with 2 Output Compare or Input Capture channels      High-Resolution Extensions on two Timer/Counters      Advanced Waveform Extension on one Timer/Counter – Two USARTs      IrDA Extension on one USART – Two Two-Wire Interfaces with dual address match (I2C and SMBus compatible) – Two SPIs (Serial Peripheral Interfaces) peripherals – 16-bit Real Time Counter with Separate Oscillator – One Twelve-channel, 12-bit, 200 ksps Analog to Digital Converter – Two 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 Interface      PDI (Program and Debug Interface) for programming, test and debugging I/O and Packages – 34 Programmable I/O Lines – 44-lead TQFP – 44-pad VQFN/QFN – 49-ball VFBGA Operating Voltage – 1.6 – 3.6V Speed performance – 0 – 12 MHz @ 1.6 – 3.6V – 0 – 32 MHz @ 2.7 – 3.6V