ATXMEGA128A3U-MH 8/16-bit AVR XMEGA A3U microcontroller featuring 128KB flash memory, 8KB RAM, and 2KB EEPROM. Operates at up to 32MHz with a 1.6V to 3.6V supply range.
Mfr Part #:

ATXMEGA128A3U-MH

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
8/16-bit AVR XMEGA A3U microcontroller featuring 128KB flash memory, 8KB RAM, and 2KB EEPROM. Operates at up to 32MHz with a 1.6V to 3.6V supply range.
✓ Total Stock: 10,960 pcs

ATXMEGA128A3U-MH Available from 2 distributors

✓ Authorised
✓ Non-Authorised
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Non-Authorised Inventory information
8,218 pcs
8218 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,742 pcs
2742 pcs On Request 1 On Request On Request On Request On Request On Request

ATXMEGA128A3U-MH Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Halogen Free
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Termination Style
Voltage
Watchdog Timer

ATXMEGA128A3U-MH Description

Short technical summary and product information.

The ATXMEGA128A3U-MH is a high-performance, low-power 8/16-bit AVR XMEGA A3U microcontroller from Microchip Technology. It integrates 128KB of in-system self-programmable flash memory, 8KB of SRAM, and 2KB of EEPROM in a single 64-pin QFN package.

 

Operating at up to 32MHz (12MHz at 1.6V-2.7V), the device offers 50 general-purpose I/O pins, a 12-bit ADC with 16 channels at 2 MSPS, a 12-bit DAC with 2 channels at 1 MSPS, and extensive connectivity including I2C (2 channels), SPI (10 channels), UART/USART (7 channels), USB 2.0 full/low speed device, and IrDA. Peripherals include a four-channel DMA controller, seven 16-bit timer/counters with up to 22 PWM channels, a real-time counter, four analog comparators, as well as AES/DES crypto engine and CRC generator.

 

The microcontroller is packaged in a 64-VFQFN exposed pad (9x9mm) for surface-mount assembly and is specified for an operating temperature range of -40°C to +85°C. It supports five sleep modes, programmable brown-out detection, JTAG and PDI debug interfaces, and is ideal for industrial control, sensor interface, and USB-enabled embedded applications.

ATXMEGA128A3U-MH Quick Information

Product Type: Microcontroller
Series: XMEGA A3U
Canonical Name: Microchip ATXMEGA128A3U-MH AVR XMEGA 8/16-bit Microcontroller
Subcategory: 8/16-bit AVR XMEGA

ATXMEGA128A3U-MH Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-free packaging

ATXMEGA128A3U-MH Features

  • 8/16-bit AVR XMEGA core at 32MHz.
  • 128KB flash and 8KB SRAM on-chip.
  • 50 I/O pins with 16-channel 12-bit ADC.
  • USB 2.0 full/low speed device interface.
  • Hardware AES/DES crypto and CRC engines.

ATXMEGA128A3U-MH Applications

  • Industrial control and automation systems.
  • USB-enabled embedded peripherals.
  • Sensor interface and data acquisition.
  • Human-machine interface with touch support.

ATXMEGA128A3U-MH FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATXMEGA128A3U-MH?

The ATXMEGA128A3U-MH operates from 1.6V to 3.6V.

What package is the ATXMEGA128A3U-MH available in?

It is available in a 64-VFQFN exposed pad package (supplier package 64-QFN 9x9mm).

What is the operating temperature range?

The operating temperature range is -40°C to +85°C (TA).

Is the ATXMEGA128A3U-MH RoHS compliant?

The part is indicated as RoHS3 Compliant, but this has not been independently verified from manufacturer documentation.

What is the maximum clock frequency?

The maximum clock frequency is 32MHz at 2.7V to 3.6V, and 12MHz at 1.6V to 2.7V.

Does the ATXMEGA128A3U-MH have a USB interface?

Yes, it has a USB 2.0 Full Speed (12 Mbps) / Low Speed (1.5 Mbps) device interface.

How many I/O pins are available?

It provides 50 general-purpose I/O pins.

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