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8 Bit MCU, Low Power High Performance, AVR ATxmega Family ATXmega A Series Microcontrollers


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ATXMEGA256A3U-MH   Datasheet
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Product Range Selector (AVR ATxmega Family ATXmega A Series Microcontrollers)

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Product Overview

The ATXMEGA256A3U-MH is a 8-bit low power high performance AVR Microcontroller features 256kB self-programming flash program memory, 8kB boot code section, 16kB SRAM, 4096B EEPROM, 4-channel DMA controller, 8-channel event system and up to 32 MIPS throughput at 32MHz. The device can be used in a wide range of applications, such as building, climate control, hand-held battery applications, power tools. Four internal inputs include internal temperature sensor, DAC output, AVCC voltage divided by 10 and 1.1V bandgap voltage.
  • Two analogue to digital converters (ADCs)
  • 12-bit Resolution
  • Up to two million samples per second - Four inputs can be sampled within 1.5µs
  • Differential and single-ended input - Up to 16 single-ended inputs
  • Built-in differential gain stage
  • Single, continuous and scan conversion options
  • Four conversion channels with individual input control and result registers
  • Internal and external reference options
  • Compare function for accurate monitoring of user defined thresholds
  • Optional event triggered conversion for accurate timing
  • Optional DMA transfer of conversion results
  • Optional interrupt/event on compare result


Industrial, Motor Drive & Control, Power Management, Automation & Process Control, HVAC, Communications & Networking, Metering, Consumer Electronics, Fibre Optics, Medical


Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

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Technical Documents (3)

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Deliveries start from 9/6/23

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1+ HK$92.43
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520+ HK$82.92
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