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Microchip Technology ATXMEGA256D3-MHR Microcontrollers

IC MCU 8/16BIT 256KB FLASH 64QFN

540 ActiveMicrochip TechnologyATXMEGA256D64-VFQFN Exposed Pad$18.65
ATXMEGA256D3-MHR 64-VFQFN Exposed Pad package illustration

Same model may have multiple batches, images only for reference.

ATXMEGA256D3-MHR
Part Number (MPN)
ATXMEGA256D3-MHR
Base Model
Detailed Description
IC MCU 8/16BIT 256KB FLASH 64QFN
Package
64-VFQFN Exposed Pad
Lifecycle Status
Active
Datasheet
PDF ATXMEGA256D3-MHR Datasheet
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Ordering Code Family

ATXMEGA256D groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

View all variants

Technical Specifications

Microchip Technology ATXMEGA256D3-MHR Microcontrollers technical specifications.

General

Interface
I2C, IrDA, LIN, SPI, UART, USART
Memory Size
128 kB
RAM Size
16K x 8
Data Bus Width
8 b
RoHS
Yes
Number of Pins
64
Package / Case
64-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.6V ~ 3.6V

Related Parts Comparison (ATXMEGA256D3-MHR vs ATXMEGA256D3-MN vs ATXMEGA256D3-ANR vs ATXMEGA256D3-MNR)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / Case64-VFQFN Exposed Pad64-VFQFN Exposed Pad64-TQFP64-VFQFN Exposed Pad
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 105°C (TA)-40°C ~ 105°C (TA)-40°C ~ 105°C (TA)
Supply Voltage1.6V ~ 3.6V1.6V ~ 3.6V1.6V ~ 3.6V1.6V ~ 3.6V
Core ProcessorAVRAVRAVRAVR
Core Size8/16-Bit8/16-Bit8/16-Bit8/16-Bit
RAM Size16K x 816K x 816K x 816K x 8
RoHSYesYesYesYes
Lifecycle StatusActiveActiveActiveActive
ConnectivityI²C, IrDA, SPI, UART/USARTI²C, IrDA, SPI, UART/USARTI²C, IrDA, SPI, UART/USARTI²C, IrDA, SPI, UART/USART
Data ConvertersA/D 16x12bA/D 16x12bA/D 16x12bA/D 16x12b
EEPROM Size4K x 84K x 84K x 84K x 8
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

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