Products > Integrated Circuits (ICs) > ATXMEGA128A1U-AU

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

  • Package/Case :
  • TQFP-100
  • Product Categories :
  • 8-bit Microcontrollers - MCU
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 1500


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ATXMEGA128A1U-AU Product Details

Low power, high performance 8/16-bit AVR microcontroller featuring 128KB self-programming flash program memory, 8KB boot code section, 8KB SRAM, 2048-Byte EEPROM, external bus interface, 4-channel DMA controller, 8-channel event system, and up to 32 MIPS throughput at 32MHz. The AVR XMEGA A1U series features 100-pin packages.
The device can be used in a wide range of applications, such as building, industrial, motor, board, and climate control; hand-held battery applications; factory automation; power tools; HVAC; networking, metering, large home appliances, and optical and medical devices.



The AVR® XMEGA® AU is a family of low power, high performance, and peripheral rich 8/16-bit microcontrollers based on the AVR enhanced RISC architecture. The XMEGA A1U is a 100-pins device ranging from 64KB to 128KB Flash, with 4KB to 8KB SRAM, 2KB EEPROM and up to 8KB boot section. The ATxmegaA1U devices operate at a maximum frequency of 32MHz. By executing instructions in a single clock cycle, the devices achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system designer to optimize power consumption versus processing speed.

 High-performance, low-power AVR® XMEGA® 8/16-bit Microcontroller
 Nonvolatile program and data memories
 64K - 128KBytes of in-system self-programmable flash
 4K - 8KBytes boot section
 2KBytes EEPROM
 4K - 8KBytes internal SRAM
 External bus interface for up to 16Mbytes SRAM
 External bus interface for up to 128Mbit SDRAM
 Peripheral features
 Four-channel DMA controller
 Eight-channel event system
 Eight 16-bit timer/counters
 Four timer/counters with 4 output compare or input capture channels
 Four timer/counters with 2 output compare or input capture channels
 High resolution extension on all timer/counters
 Advanced waveform extension (AWeX) on two timer/counters
 One USB device interface
 USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant
 32 Endpoints with full configuration flexibility
 Eight USARTs with IrDA support for one USART
 Four two-wire interfaces with dual address match (I2C and SMBus compatible)
 Four serial peripheral interfaces (SPIs)
 AES and DES crypto engine
 CRC-16 (CRC-CCITT) and CRC-32 (IEEE® 802.3) generator
 16-bit real time counter (RTC) with separate oscillator
 Two sixteen channel, 12-bit, 2msps Analog to Digital Converters
 Two Two-channel, 12-bit, 1msps Digital to Analog Converters
 Four Analog Comparators (ACs) with window compare function, and current sources
 External interrupts on all general purpose I/O pins
 Programmable watchdog timer with separate on-chip ultra low power oscillator
 QTouch® library support
 Capacitive touch buttons, sliders and wheels
 Special microcontroller features
 Power-on reset and programmable brown-out detection
 Internal and external clock options with PLL and prescaler
 Programmable multilevel interrupt controller
 Five sleep modes
 Programming and debug interfaces
 JTAG (IEEE 1149.1 compliant) interface, including boundary scan
 PDI (Program and Debug Interface)
 I/O and packages
 78 Programmable I/O pins
 100 lead TQFP
 100 ball BGA
 100 ball VFBGA
 Operating voltage
 1.6 – 3.6V
 0 – 32MHz from 2.7V

ATXMEGA128A1U-AU Products

(Picture: Pinout)

Technical Parameters

  • Core
  • AVR
  • Data Bus Width
  • 8 bit/16 bit
  • On Chip ADC
  • Yes
  • Operating Supply Voltage
  • 1.6 V to 3.6 V
  • Processor Series
  • Factory Pack Quantity
  • 90

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Estimated Delivery Time: Jun 01 - Jun 06 days (choose Expedited at checkout).

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  • charge 3.5% service fee.
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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.We provide 90 days warranty.

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?
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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...
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