ATXMEGA256A3BU-MHR The ATXMEGA256A3BU-MHR is an 8/16-bit AVR XMEGA microcontroller from Microchip Technology with 256KB Flash, 16KB RAM, and 32MHz clock speed.
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ATXMEGA256A3BU-MHR

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATXMEGA256A3BU-MHR is an 8/16-bit AVR XMEGA microcontroller from Microchip Technology with 256KB Flash, 16KB RAM, and 32MHz clock speed.
✓ Total Stock: 6,750 pcs

ATXMEGA256A3BU-MHR Available from 1 distributor

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✓ Non-Authorised
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6,750 pcs
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ATXMEGA256A3BU-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
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage

ATXMEGA256A3BU-MHR Description

Short technical summary and product information.

The Microchip Technology ATXMEGA256A3BU-MHR is a high-performance 8/16-bit AVR XMEGA microcontroller designed for complex embedded systems. It features 256KB of in-system self-programmable Flash memory, 16KB internal SRAM, and 4KB EEPROM for non-volatile data storage. The device operates at up to 32MHz and supports a wide supply voltage range of 1.6V to 3.6V, enabling low-power operation. Connectivity options include I²C, IrDA, SPI, UART/USART, and USB, making it suitable for communication-centric applications. The microcontroller integrates a 16-channel 12-bit ADC and a 2-channel 12-bit DAC for analog interfacing. It is housed in a 64-VFQFN exposed pad package (64-QFN 9x9mm) and is intended for surface-mount assembly. The ATXMEGA256A3BU-MHR includes peripherals such as DMA, brown-out detection, power-on reset, PWM, and a watchdog timer, and it operates over an industrial temperature range of -40°C to +85°C.

ATXMEGA256A3BU-MHR Quick Information

Product Type: Microcontroller
Series: ATxmega256A3BU
Canonical Name: Microchip Technology ATXMEGA256A3BU-MHR AVR XMEGA 8/16-Bit Microcontroller
Subcategory: 8/16-bit AVR XMEGA

ATXMEGA256A3BU-MHR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATXMEGA256A3BU-MHR Features

  • 8/16-bit AVR core at 32MHz clock speed.
  • 256KB Flash and 16KB RAM for complex code.
  • 16-channel 12-bit ADC for precise analog input.
  • USB device interface with 32 endpoints.
  • Operating voltage range 1.6V to 3.6V.

ATXMEGA256A3BU-MHR Applications

  • Ideal for industrial control and automation systems.
  • Suitable for consumer electronics and smart appliances.
  • Used in automotive electronic control units.
  • Medical devices requiring reliable data acquisition.

ATXMEGA256A3BU-MHR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATXMEGA256A3BU-MHR?

The operating voltage range is 1.6V to 3.6V.

What is the package type for this microcontroller?

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

What is the operating temperature range?

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

Is this component RoHS compliant?

The component is marked as RoHS3 compliant based on available data, but this has not been externally verified.

What is the program memory size of the ATXMEGA256A3BU-MHR?

The program memory is 256KB (128K x 16) of Flash.

How many I/O pins does this microcontroller have?

It has 47 programmable I/O pins.

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