lmages are for reference only See Product Specifications

Microchip Technology ATXMEGA256A3U-MH

Part No.:
Microchip Technology
64-VFQFN Exposed Pad
In Stock:
  Add To Cart
For more detailed including pricing and shipping
Quick response, quick quotation
Flash shipment, no worries after sales
Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Part Number
Email / phone number*
Contact Name / Company Name
  • Purchase and inquiryPurchase and inquiry

    ATXMEGA256A3U-MH this integrated circuit is available in factory sealed anti static packs. at Please read product page below detail information. including ATXMEGA256A3U-MH price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for ATXMEGA256A3U-MH to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

    Purchase in

    There is no doubt that you may place an order without registering to

    We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

    Means of Payment in

    For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

    RFQ (Request for Quotations) in

    It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

    Our sales will reply to your request by email within 24 hours.

    Warm reminder

    1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

    2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

    Shipping & Handling

    Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

    The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

    Shipping Method

    Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

    Order Tracking for International Orders

    Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.


    ATXMEGA256A3U-MH Typical application Circuitry


    The ATXMEGA256A3U-MH is a microcontroller from Microchip's MEGA series, featuring an 8/16-bit AVR core with 256 KB of Flash memory, 16 KB of SRAM, and a variety of communication and data processing peripherals such as SART, SPI, I2C, High-Speed Timer/Counter, ADC's, Days, and more. This microcontroller is highly suited for a range of applications like industrial control, home automation systems, data loggers, and IoT devices. Let's consider the application of an industrial control system, where the ATXMEGA256A3U-MH is used to read data from several sensors and control various actuators based on these readings.

    Here's a detailed description of how to interface the microcontroller in this context:

    - Connect various sensors (e.g., temperature, pressure, humidity) to ADC channels on the ATXMEGA256A3U-MH, for example, pins PA0 (ADC A channel 0) to PA3 (ADC A channel 3).

    - Connect the control pins of actuators (like relays or solenoids) to GPO pins. You may, for instance, use the pins on Port D (PD0-PD7).

    - The SART interface (USARTC0 on pins PC2 (TXD) and PC3 (RED)) can be used to communicate with a PC or another microcontroller for monitoring and control purposes.

    - LEDs for status indication can be connected to other GPO pins, like PE0 and PE1.

    Designing such a system with ATXMEGA256A3U-MH entails several considerations:

    1. Power Supply: Ensure a stable power supply within the operating voltage range of 1.6V to 3.6V.

    2. Signal Conditioning: Depending on the type of sensors used, you might need additional components for signal conditioning (like amplifiers, filters) before the signal can be fed to the ADC of the ATXMEGA256A3U-MH.

    3. Isolation: For an industrial control system, isolation between the MCU and the control signals may be required to prevent damage from noise, surges, or fault conditions. Relays or optocouplers can be utilized for this. 

    4. Firmware: Writing the firmware for such a system is a complex task. It must handle the reading from sensors, actuator control, communication, and fault detection efficiently.

    To summarize, the ATXMEGA256A3U-MH is a versatile and powerful microcontroller, offering a wide range of possibilities for various applications. However, to take full advantage of its features, careful consideration must be given to circuit design and firmware development.

    ATXMEGA256A3U-MH informationATXMEGA256A3U-MH information


    1. How to order ATXMEGA256A3U-MH on

    Currently, only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

    2. How does guarantee that ATXMEGA256A3U-MH is from the original manufacturer or authorized agents?

    We have a professional and experienced quality control team to strictly verify and test the ATXMEGA256A3U-MH. All suppliers must pass our qualification reviews before they can publish their products including ATXMEGA256A3U-MH on; we pay more attention to the channels and quality of ATXMEGA256A3U-MH products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

    3. Are the ATXMEGA256A3U-MH price and inventory displayed accurate?

    The price and inventory of ATXMEGA256A3U-MH fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

    4. What forms of payment are accepted?

    Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

    Warm Tips: Some orders in certain payment forms may require handling fee.

    5. How is the shipping arranged?

    Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

    Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

    6. What is the process for return or replacement of ATXMEGA256A3U-MH?

    All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ATXMEGA256A3U-MH we delivered, we will accept the replacement or return of the ATXMEGA256A3U-MH only when all of the below conditions are fulfilled:

    (1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

    (2)We are informed of the defect described above within 90 days after the delivery of ATXMEGA256A3U-MH.

    (3)The PartNo is unused and only in the original unpacked packaging.

    Two processes to return the products:

    (1)Inform us within 90 days

    (2)Obtain Requesting Return Authorizations

    7.How to contact us to get technical supports, such as ATXMEGA256A3U-MH pin diagram, ATXMEGA256A3U-MH datasheet?

    If you need any after-sales service, please do not hesitate to contact us.

    Hot Products







    Contact Us