ATXMEGA128A1 User Reference Manual Guide

●The ATXMEGA128A1-AU is a low power, high performance 8bit/16bit AVR XMEGA A1 microcontroller in 100 pin TQFP package. By executing instructions in a single clock cycle, the AVR XMEGA devices achieve CPU throughput approaching one million instructions per second (MIPS) per MHz allowing the system designer to optimize power consumption versus processing speed. The XMEGA A1 device has five software selectable power saving modes. The idle mode stops the CPU while allowing SRAM, DMA controller, event system, interrupt controller and all peripherals to continue functioning. It has QTouch library support for capacitive touch buttons, sliders and wheels.

● Maximum operating frequency of 32MHz

● 128KB self programming flash program memory

● 8KB boot code section, 8KB SRAM, 2KB EEPROM

● 16bit real time counter (RTC) with separate oscillator

● 2MIPS throughput at 32MHz

● 78 programmable I/O pins

● Four channel DMA controller, eight channel event system and eight 16bit timer/counters

● Operating voltage range from 1.6V to 3.6V

● Eight USART, four 2-wire and four SPI interfaces

● Operating temperature range from -40°C to 85°C