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ATXMEGA256A3U-MHR The ATXMEGA256A3U-MHR is an 8/16-bit AVR XMEGA microcontroller from Microchip Technology with 256KB Flash, 16KB RAM, and 4KB EEPROM. It operates at up to 32MHz and features 50 I/O pins, USB, and multiple communication interfaces.
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ATXMEGA256A3U-MHR

Available from 3 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATXMEGA256A3U-MHR is an 8/16-bit AVR XMEGA microcontroller from Microchip Technology with 256KB Flash, 16KB RAM, and 4KB EEPROM. It operates at up to 32MHz and features 50 I/O pins, USB, and multiple communication interfaces.
✓ Total Stock: 10,344 pcs

ATXMEGA256A3U-MHR Available from 3 distributors

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Romaks Technologies ✓
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7,533 pcs
On Request
7533 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
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2,810 pcs
On Request
2810 pcs On Request 1 On Request On Request On Request On Request On Request
Trace Tec ✓
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1 pcs
On Request
1 pcs On Request 1 On Request On Request On Request On Request On Request
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ATXMEGA256A3U-MHR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Lead Style
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
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ATXMEGA256A3U-MHR Description

Short technical summary and product information.

The ATXMEGA256A3U-MHR is a high-performance 8/16-bit microcontroller from Microchip Technology's AVR XMEGA A3U series. It features a 32MHz AVR core with 256KB of Flash memory, 16KB SRAM, and 4KB EEPROM.

 

Key specifications include a 12-bit ADC with 16 channels, a 12-bit DAC with 2 channels, USB 2.0 full speed, seven USARTs, two I2C, three SPI, and IrDA. Peripherals include DMA, event system, timers, and crypto engine.

 

The device operates from 1.6V to 3.6V and over -40°C to 85°C. It is available in a 64-VFQFN exposed pad package (64-QFN 9x9mm) for surface mount. The internal oscillator reduces external component count.

 

Applications include consumer electronics, industrial control, medical devices, automotive, and communication systems. Development tools include Atmel Studio IDE and evaluation boards.

ATXMEGA256A3U-MHR Quick Information

Product Type: Microcontroller
Series: A3U
Canonical Name: ATXMEGA256A3U-MHR
Subcategory: 8/16-bit Microcontroller

ATXMEGA256A3U-MHR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): MSL 3 - 168 Hours
REACH Status: REACH Unaffected

ATXMEGA256A3U-MHR Features

  • 256KB Flash and 16KB SRAM memory.
  • 32MHz AVR core with 1.6V operation.
  • USB 2.0 full speed device interface.
  • 12-bit ADC with 16 channels.
  • 50 I/O pins in 64-QFN package.

ATXMEGA256A3U-MHR Applications

  • Ideal for industrial control systems.
  • Used in consumer electronics devices.
  • Suitable for medical monitoring equipment.
  • Applicable in automotive control modules.
  • Useful for IoT gateway applications.

ATXMEGA256A3U-MHR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATXMEGA256A3U-MHR?

1.6V to 3.6V.

What is the package type of the ATXMEGA256A3U-MHR?

64-VFQFN Exposed Pad (64-QFN 9x9mm).

What is the operating temperature range?

-40°C to 85°C (TA).

Is the ATXMEGA256A3U-MHR RoHS compliant?

RoHS3 compliant (unverified).

What is the maximum clock speed?

32 MHz at Vcc ≥ 2.7V, 12 MHz at 1.6V.

How much Flash memory does it have?

256 kB.

What communication interfaces are supported?

I²C, IrDA, SPI, UART/USART, USB.

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