Products > Integrated Circuits (ICs) > ATXMEGA128A1U-AU

Images are for reference only.


Hot Sale

8 Bit MCU, Low Power High Performance, AVR ATxmega Family ATXmega A Series Microcontrollers, 32 MHz

Manufacturer : Microchip Technology, Inc
Package/Case : TQFP-100
Product Categories : 8-bit Microcontrollers - MCU
Datasheet: ATXMEGA128A1U-AU Datasheet (PDF)
RoHs Status: Lead free / RoHS Compliant
In-stock: 2350


Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

ATXMEGA128A1U-AU Product Details

ATXMEGA128A1U-AU is a microcontroller chip manufactured by Microchip Technology. It is part of the XMEGA-A1U series and features 128 KB of flash memory, 8 KB of SRAM, and 2 KB of EEPROM. It also has a variety of peripherals, including multiple UARTs, SPIs, and I2C interfaces, as well as built-in ADCs, DACs, and a real-time clock.



  • 128KB In-system Self-programmable Flash program memory

  • 8KB boot code section with independent lock bits


  • 4KB Internal SRAM

  • Four-channel DMA Controller

  • Peripheral Event System

  • 12-bit, 8-channel ADC with Programmable Gain Stage (PGA)

  • 12-bit, 2-channel DAC

  • Four 16-bit Timer/Counters

  • One 16-bit Real Time Counter (RTC)

  • One USART with SPI and IrDA mode

  • One Two-wire Interface (TWI/I2C compatible)

  • One Serial Peripheral Interface (SPI)

  • Four Analog Comparators with Window mode

  • Four-channel High-resolution Extension (HRE) Interface

  • 32-bit CRC-CCITT

  • Programmable Watchdog Timer (WDT)

  • Multiple Sleep Modes

  • QTouch Library Support

ATXMEGA128A1U-AU Products


  • Industrial control and automation

  • HVAC systems

  • Building automation

  • Security and access control systems

  • Medical and fitness equipment

  • Gaming machines

  • Power tools and equipment

  • Handheld devices and instruments





(Picture: Pinout)

Technical Parameters

  • Manufacturer
  • Microchip
  • Product Category
  • 8/16-bit Microcontroller
  • Product Series
  • ATxmega
  • Part Number
  • Core
  • CPU Speed
  • 32 MHz
  • Flash Memory
  • 128 KB
  • SRAM
  • 4 KB
  • 4 KB
  • Number of DMA Channels
  • 4
  • Number of ADC Channels
  • 8
  • ADC Resolution
  • 12-bit
  • Number of DAC Channels
  • 2
  • DAC Resolution
  • 12-bit
  • Number of Timers/Counters
  • 4
  • Timer/Counter Resolution
  • 16-bit
  • Number of Analog Comparators
  • 4
  • Number of Communication Interfaces
  • 3
  • Operating Voltage Range
  • 1.6V to 3.6V
  • Package / Case
  • TQFP-64
  • Operating Temperature Range
  • -40°C to +85°C

ATXMEGA128A1U-AU Equivalent Parts

For the ATXMEGA128A1U-AU component, you may consider these replacement and alternative parts.

Models Manufacturer Package/Case Description

ATXMEGA128A1U-AU Related Products

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • **ory ***

    Arrived today-many thanks for fast service!

  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Feb 26 - Mar 02 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that ATXMEGA128A1U-AU is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their ATXMEGA128A1U-AU devices; we pay more attention to the channels and quality of ATXMEGA128A1U-AU products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ATXMEGA128A1U-AU chips? Including MICROCHIP original factory information, 8-bit Microcontrollers - MCU application, ATXMEGA128A1U-AU pictures?
You can use Jotrin's intelligent search engine, or filter by 8-bit Microcontrollers - MCU category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's ATXMEGA128A1U-AU price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ATXMEGA128A1U-AU, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of ATXMEGA128A1U-AU?
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 ATXMEGA128A1UAU we delivered, we will accept the replacement or return of the ATXMEGA128A1U-AU 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 ATXMEGA128A1U-AU.
(3)The ATXMEGA128A1U-AU 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
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as ATXMEGA128A1U-AU datasheet pdf, ATXMEGA128A1U pin diagram?
Need any After-Sales service, please feel free contact us:

Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...

Certificates & Honor

Certificates & Honor