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ATXMEGA256D3-MHR ATXMEGA256D3-MHR is an 8/16-bit AVR XMEGA microcontroller from Microchip Technology with 256KB Flash, 16KB RAM, and 32MHz maximum clock frequency.
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ATXMEGA256D3-MHR

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
ATXMEGA256D3-MHR is an 8/16-bit AVR XMEGA microcontroller from Microchip Technology with 256KB Flash, 16KB RAM, and 32MHz maximum clock frequency.
✓ Total Stock: 10,739 pcs

ATXMEGA256D3-MHR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
9,499 pcs
On Request
9499 pcs On Request 1 On Request On Request 21+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
1,240 pcs
On Request
1240 pcs On Request 1 On Request On Request 21+ On Request On Request
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ATXMEGA256D3-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
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ATXMEGA256D3-MHR Description

Short technical summary and product information.

The ATXMEGA256D3-MHR is a high-performance, low-power 8/16-bit AVR XMEGA D3 microcontroller from Microchip Technology. It features a 256KB in-system self-programmable Flash memory, 16KB internal SRAM, and 4KB EEPROM, providing ample storage for complex embedded applications.

 

Operating at up to 32MHz with a supply voltage range of 1.6V to 3.6V, this device integrates a 12-bit, 16-channel analog-to-digital converter (ADC), multiple serial interfaces (I²C, SPI, UART/USART, IrDA), and peripheral features such as brown-out detect, power-on reset, PWM, and watchdog timer. It includes 50 programmable I/O pins and supports five sleep modes for energy-sensitive designs.

 

The MCU is housed in a 64-VFQFN exposed pad package (supplier package 64-QFN 9x9mm) for surface-mount assembly. It is suited for industrial control, sensor interfaces, and connectivity applications requiring a balance of processing power and low power consumption.

ATXMEGA256D3-MHR Quick Information

Product Type: Microcontroller
Series: ATXMEGA
Canonical Name: ATXMEGA256D3-MHR
Subcategory: MCU

ATXMEGA256D3-MHR Compliance

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

ATXMEGA256D3-MHR Features

  • 8/16-bit AVR XMEGA core processor.
  • 256KB Flash and 16KB internal SRAM.
  • Operates from 1.6V to 3.6V supply.
  • Integrated 12-bit ADC with 16 channels.
  • Surface-mount 64-QFN (9x9mm) package.

ATXMEGA256D3-MHR Applications

  • Used in industrial control and automation.
  • Suitable for sensor data acquisition systems.
  • Ideal for low-power embedded applications.
  • Supports communication via I2C, SPI, and USART.

ATXMEGA256D3-MHR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATXMEGA256D3-MHR?

1.6V to 3.6V

What package does the ATXMEGA256D3-MHR come in?

64-VFQFN Exposed Pad (supplier package 64-QFN 9x9mm)

What is the operating temperature range of the ATXMEGA256D3-MHR?

-40°C to 85°C

What is the maximum clock speed of the ATXMEGA256D3-MHR?

32 MHz

How much Flash memory does the ATXMEGA256D3-MHR have?

256KB

How many I/O pins are available on the ATXMEGA256D3-MHR?

50

What serial communication interfaces are supported?

I²C, IrDA, SPI, UART/USART

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