Microchip ATXMEGA128D3-AUR, 8 bit, 16 bit AVR Microcontroller, ATXMEGA, 32MHz, 128 kB Flash, 64-Pin TQFP

The high-performance, low-power 8/16-bit AVR XMEGA microcontroller combines 128KB ISP flash memory (8KB boot code section) with read-while-write capabilities, 2KB EEPROM, 8KB SRAM, a four-channel event system, a programmable multi-level interrupt controller, 50 general purpose I/O lines, a 16-bit real time counter, five flexible 16-bit timer/counters with compare modes and PWM, three USARTs, two 2-wire interfaces, two serial peripheral interfaces, one 16-channel/12-bit A/D converter with optional differential input with programmable gain, two analog comparators with window mode, a programmable watchdog timer with separate internal oscillator, accurate internal oscillators with PLL and prescaler, and a programmable brown-out detection. The Program and Debug Interface (PDI), a fast 2-pin interface for programming and debugging, is available.