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Home Products Integrated Circuits (ICs)Embedded - Microcontrollers~~ATXMEGA128A4U-MH~~

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ATXMEGA128A4U-MH - Microchip Technology

Name: Microchip Technology ATXMEGA128A4U-MH
Brand: Microchip Technology
SKU: ATXMEGA128A4U-MH
Availability: InStock
Rating: 5 (6 reviews)

Manufacturer Part Number: ATXMEGA128A4U-MH

Manufacturer: Microchip Technology

Allelco Part Number: 32D-ATXMEGA128A4U-MH

Warranty: 1 Year Allelco Warranty - Find out more

Parts Description: IC MCU 8/16BIT 128KB FLSH 44VQFN

Package: 44-VQFN (7x7)

Data sheet: 1.ATXMEGA128A4U-M.pdf ...

Datasheets
XMEGA AU Manual.pdf

PCN Design/Specification
ATxmega128/64/32/16A4U 08/May/2020.pdf Marking Chgs 11/Jul/2017.pdf

Errata
2.73KHz.pdf

PCN Assembly/Origin
2.73KHz.pdf

HTML Datasheet
Cylindrical Battery Holders.pdf

PCN Packaging
Boxes 07/Dec/2016.pdf Transfer to Microchip/Label/Pkg 5/Sep/2016.pdf

PCN Other
2.73KHz.pdf

RoHs Status: ROHS3 Compliant

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Specifications

ATXMEGA128A4U-MH Tech Specifications
Microchip Technology - ATXMEGA128A4U-MH technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - ATXMEGA128A4U-MH

Product Attribute	Attribute Value
Manufacturer	Microchip Technology
Voltage - Supply (Vcc/Vdd)	1.6V ~ 3.6V
Supplier Device Package	44-VQFN (7x7)
Speed	32MHz
Series	AVR® XMEGA® A4U
RAM Size	8K x 8
Program Memory Type	FLASH
Program Memory Size	128KB (64K x 16)
Peripherals	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Package / Case	44-VFQFN Exposed Pad
Package	Tray

Product Attribute	Attribute Value
Oscillator Type	Internal
Operating Temperature	-40°C ~ 85°C (TA)
Number of I/O	34
Mounting Type	Surface Mount
EEPROM Size	2K x 8
Data Converters	A/D 12x12b; D/A 2x12b
Core Size	8/16-Bit
Core Processor	AVR
Connectivity	I²C, IrDA, SPI, UART/USART, USB
Base Product Number	ATXMEGA128

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected
ECCN	5A992C
HTSUS	8542.31.0001

Parts Introduction

Manufacturer Part Number

ATXMEGA128A4U-MH

Manufacturer

Microchip Technology

Introduction

The ATXMEGA128A4U-MH is a high-performance, low-power AVR® XMEGA® A4U Microcontroller designed for advanced embedded applications.

Product Features and Performance

Core: AVR 8/16-Bit processor with a maximum speed of 32MHz

Connectivity options include I2C, IrDA, SPI, UART/USART, USB

Peripherals include Brown-out Detect/Reset, DMA, POR, PWM, WDT

Internal oscillator

Enhanced power management features

Product Advantages

Offers robust serial communication capabilities

High program memory size of 128KB allows for extensive code development

Efficient power management supporting 1.6V to 3.6V supply voltages

Comprehensive set of peripherals enhances system reliability

Key Technical Parameters

Number of I/O: 34

Program Memory Size: 128KB (64K x 16)

EEPROM Size: 2K x 8

RAM Size: 8K x 8

Voltage Supply (Vcc/Vdd): 1.6V ~ 3.6V

Data Converters: A/D 12x12b, D/A 2x12b

Operating Temperature: -40°C ~ 85°C (TA)

Mounting Type: Surface Mount

Package: 44-VQFN (7x7)

Quality and Safety Features

Integrated features such as Watchdog Timer (WDT), Brown-out Detect/Reset ensure stable and reliable operation

Rigorous quality standards for robust performance in diverse conditions

Compatibility

Compatible with surface mount technology equipments for easy assembly on printed circuit boards

Application Areas

Automation

Consumer Electronics

Industrial Control Systems

Internet of Things Devices

Product Lifecycle

Status: Active

Long-term availability with no current plans for discontinuation

Opportunities for future upgrades or replacements

Several Key Reasons to Choose This Product

Robust standby functionality with minimal power consumption

Extensive connectivity options offer great versatility in application development

High memory capacity allows complex program executions

Wide voltage range and temperature tolerance for diverse environmental adaptability

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology ATXMEGA128A4U-MH

Product Attribute
Part Number	ATXMEGA128A4U-MHR	ATXMEGA128A4U-MNR	ATXMEGA128A4U-MN	ATXMEGA128A4U-AU
Manufacturer	Atmel	Microchip Technology	Microchip Technology	Atmel
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Connectivity	-	-	-	-
Peripherals	-	-	-	-
Data Converters	-	-	-	-
Oscillator Type	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Program Memory Type	-	-	-	-
Program Memory Size	-	-	-	-
Core Processor	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Series	-	-	-	-
Speed	-	-	-	-
RAM Size	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Number of I/O	-	-	-	-
Core Size	-	-	-	-
Voltage - Supply (Vcc/Vdd)	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
EEPROM Size	-	-	-	-

ATXMEGA128A4U-MH Datasheet PDF

Download ATXMEGA128A4U-MH pdf datasheets and Microchip Technology documentation for ATXMEGA128A4U-MH - Microchip Technology.

Datasheets: XMEGA AU Manual.pdf
PCN Design/Specification: ATxmega128/64/32/16A4U 08/May/2020.pdf Marking Chgs 11/Jul/2017.pdf
Errata: 2.73KHz.pdf
PCN Assembly/Origin: 2.73KHz.pdf
HTML Datasheet: Cylindrical Battery Holders.pdf
PCN Packaging: Boxes 07/Dec/2016.pdf Transfer to Microchip/Label/Pkg 5/Sep/2016.pdf
PCN Other: 2.73KHz.pdf

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Customer Reviews

Evaluation: 10 Articles

Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.
Kevi***.

Mar 17, 2026

Fast switching and stable output. Very satisfied with this IC
Daou***hekebkeb

Jun 16, 2024

I had a great experience purchasing items from Allelcoelec, I recommend
Uri ***al

Jun 19, 2024

Good comunication,
Transpnt regarding the process and price.
Yaqu***l Ali

Jun 19, 2024

Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.
Lea ***

Jun 19, 2024

Morrey was very helpful and right on top of things!
He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

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