AVR ATxmega Microcontrollers

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Key Features

High-precision analog — 12-bit
analog-to-digital converters (ADCs) with gain stage and combined
throughput of 4MSPS. Fast 12-bit digital-to-analog converters (DACs) with
high drive strength, as well as other functions that reduce the need for
external components.
  • Real-time performance — The Event System
    facilitates inter-peripheral signaling with 100% predictable response
    time. To offload the CPU, all peripherals can use direct memory access
    (DMA) for data transfer.
  • Atmel picoPower® technology — True 1.6V
    operation, and down to 100nA RTC operation with full SRAM retention for
    fastest possible wake-up time.
  • High integration — AVR XMEGA devices
    integrate Advanced Encryption Standard (AES) and Data Encryption Standard
    (DES) crypto modules, up to 32 pulse-width modulation (PWM) outputs, 8
    UARTs, 4 TWI (I2C) and 4 serial peripheral interface (SPI) channels, a
    cyclic redundancy check (CRC) generator module and more.
  • AVR Software Library — A complete library
    of device drivers and communication stacks save time and development
    effort so you can focus on more important design tasks.
  • Atmel QTouch® Sensing — QTouch Library
    support enables you to easily realize robust capacitive touch sensing
    interfaces for buttons, sliders and wheels.
  • USB connectivity — Delivers
    full-speed operation without the need for external crystals, 31 endpoints,
    and a special multi-packet function that maximizes data transfer rates
    while minimizing CPU load.
  • XMEGA Custom Logic (XCL) — The AVR XMEGA E devices
    feature an innovative XMEGA Custom Logic module (XCL) consisting of two
    independent 8-bit timers/counters and two lookup tables used for defining
    glue logic. It is designed to reduce bill of material (BOM) and PCB size
    as the XCL can replace external circuitry such as delay elements,
    RS-latches, D-latches, D-flip-flops chip-select logic, AND, NAND, OR, NOR,
    XOR, XNOR, NOT, MUX AND/OR/XOR logic gates. In addition, it can, together
    with the USART, enable customized communication protocols.

Available AVR Mega controllers

  • ATxmega64A1U – 8/16-bit AVR XMEGA
    A1U Microcontroller, 64KB Flash, 100-pin, USB Full-speed Device
  • ATxmega128A1U – 8/16-bit AVR XMEGA
    A1U Microcontroller, 128KB Flash, 100-pin, USB Full-speed Device
  • ATxmega64A3U – 8/16-bit AVR XMEGA
    A3U Microcontroller, 64KB Flash, 64-pin, USB Full-speed Device
  • ATxmega128A3U – 8/16-bit AVR XMEGA
    A3U Microcontroller, 128KB Flash, 64-pin, USB Full-speed Device
  • ATxmega192A3U – 8/16-bit AVR XMEGA
    A3U Microcontroller, 192KB Flash, 64-pin, USB Full-speed Device
  • ATxmega256A3U – 8/16-bit AVR XMEGA
    A3U Microcontroller, 256KB Flash, 64-pin, USB Full-speed Device
  • ATxmega256A3BU – 8/16-bit AVR XMEGA
    A3BU Microcontroller, 256KB Flash, 64-pin, USB Full-speed Device
  • ATxmega16A4U – 8/16-bit AVR XMEGA
    A4U Microcontroller, 16KB Flash, 44-pin, USB Full-speed Device
  • ATxmega32A4U – 8/16-bit AVR XMEGA
    A4U Microcontroller, 32KB Flash, 44-pin, USB Full-speed Device
  • ATxmega64A4U – 8/16-bit AVR XMEGA
    A4 Microcontroller, 64KB Flash, 44-pin, USB Full-speed Device
  • ATxmega128A4U – 8/16-bit AVR XMEGA
    A4 Microcontroller, 128KB Flash, 44-pin, USB Full-speed Device
  • ATxmega64A1 – 8/16-bit AVR XMEGA
    A1 Microcontroller, 64KB Flash, 100-pin
  • ATxmega128A1 – 8/16-bit AVR XMEGA
    A1 Microcontroller, 128KB Flash, 100-pin
  • ATxmega64A3 – 8/16-bit AVR XMEGA
    A3 Microcontroller, 64KB Flash, 64-pin
  • ATxmega128A3 – 8/16-bit AVR XMEGA
    A3 Microcontroller, 128KB Flash, 64-pin
  • ATxmega192A3 – 8/16-bit AVR XMEGA
    A3 Microcontroller, 192KB Flash, 64-pin
  • ATxmega256A3 – 8/16-bit AVR XMEGA
    A3 Microcontroller, 256KB Flash, 64-pin
  • ATxmega256A3B – 8/16-bit AVR XMEGA
    A3B Microcontroller, 256KB Flash, 64-pin
  • ATxmega16A4 – 8/16-bit AVR XMEGA
    A4 Microcontroller, 16KB Flash, 44-pin
  • ATxmega32A4 – 8/16-bit AVR XMEGA
    A4 Microcontroller, 32KB Flash, 44-pin
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