Microchip Technology ATXMEGA128A

ATXMEGA128A variants from Microchip Technology

Variants

Mfr

Microchip Technology

Lifecycle

Active

ATXMEGA128A Overview

What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.

Key Features

Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
15 distinct suffix patternsExamples: 1U, 3, 3U, 4U, 1-AU (+10 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Microcontrollers — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 15 ATXMEGA128A part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Manufacturer	Lifecycle	RoHS	Availability	Action
ATXMEGA128A1U	\| Official Price: 5.8400 \| Official Product URL: https://www.microchip.com/en-us/product/ATxmega128A1U	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A3	\| Official Price: 6.9800 \| Official Product URL: https://www.microchip.com/en-us/product/ATxmega128A3	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A3U	\| Official Price: 6.0100 \| Official Product URL: https://www.microchip.com/en-us/product/ATxmega128A3U	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A4U	\| Official Price: 4.0800 \| Official Product URL: https://www.microchip.com/en-us/product/ATxmega128A4U	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A1-AU	IC MCU 8/16B 128KB FLASH 100TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A1-AUR	IC MCU 8/16B 128KB FLASH 100TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A1U-AN	IC MCU 8/16B 128KB FLASH 100TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A1U-ANR	IC MCU 8/16B 128KB FLASH 100TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A1U-AU	IC MCU 8/16B 128KB FLASH 100TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A3-MH	IC MCU 8/16BIT 128KB FLASH 64QFN	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A3U-AU	IC MCU 8/16BIT 128KB FLSH 64TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A3U-MHR	IC MCU 8/16BIT 128KB FLASH 64QFN	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A4U-AU	IC MCU 8/16BIT 128KB FLSH 44TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A4U-AUR	IC MCU 8/16BIT 128KB FLSH 44TQFP	Microchip Technology	Active	Compliant	In Stock	RFQ
ATXMEGA128A4U-MH	IC MCU 8/16BIT 128KB FLSH 44VQFN	Microchip Technology	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on ATXMEGA128A map to package, grade, and reel options.

How to Choose the Right ATXMEGA128A Microcontrollers

📦

Match the footprint first

Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For ATXMEGA128A, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "ATXMEGA128A" — include the full suffix (e.g. 1U, 3, 3U). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for ATXMEGA128A product family

Identity

Base Model

ATXMEGA128A

Manufacturer

Microchip Technology

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source ATXMEGA128A with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 15 ordering variants from Microchip Technology. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View Microchip Technology Browse all base models →

Frequently Asked Questions

Common technical questions about the ATXMEGA128A product family.

Is ATXMEGA128A a single part I can order, or a family prefix?

ATXMEGA128A is a base / family code from Microchip Technology. You order a full MPN such as ATXMEGA128A1U, ATXMEGA128A3, ATXMEGA128A3U. The variant table lists 15 orderable lines with different suffixes.

What do the suffix letters on ATXMEGA128A part numbers mean?

Listed suffix fragments include: 1U, 3, 3U, 4U, 1-AU, 1-AUR. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the Microchip Technology datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of ATXMEGA128A variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on ATXMEGA128A?

Full manufacturer MPN (not just ATXMEGA128A), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.