ATXMEGA256D3-MNR Equivalent & Substitute Parts

Part Overview

The ATXMEGA256D3-MNR is an AVR XMEGA D3 series microcontroller manufactured by Microchip Technology, designed for embedded applications requiring 8/16-bit processing capability. This Surface Mount device operates at 32MHz with 256KB FLASH program memory and integrates multiple communication interfaces including I2C, IrDA, SPI, and UART/USART. The part maintains Active product status and is RoHS3 compliant. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate packaging or operational temperature requirements specific to application needs.

Substiute Parts

ATXMEGA256D3-MNR

Microchip TechnologyIn Stock: 1210ATXMEGA256D3-MNR Datasheet

Current PartRFQ

ATXMEGA256D3-MHR

Microchip TechnologyIn Stock: 1633ATXMEGA256D3-MHR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ATXMEGA256D3-MNR are determined by strict equivalence across the following critical parameters:

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Program Memory: 256KB FLASH (128K x 16)
• EEPROM: 4K x 8
• RAM: 16K x 8
• Voltage Supply Range: 1.6V ~ 3.6V
• Data Converters: A/D 16x12b
• Number of I/O: 50
• Connectivity: I2C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Package: 64-VFQFN Exposed Pad (9x9)
• Series: AVR® XMEGA® D3

The ATXMEGA256D3-MHR qualifies as a direct substitute based on identical electrical specifications and package configuration. Variations in packaging format (Cut Tape & Digi-Reel® versus standard packaging) and operating temperature range do not affect functional equivalence for component selection purposes.

Parameter Comparison

Engineering Selection Recommendations

Both the ATXMEGA256D3-MNR and ATXMEGA256D3-MHR maintain Active product status from Microchip Technology and satisfy RoHS3 and REACH compliance requirements. The primary distinction between these parts is the operating temperature range: the ATXMEGA256D3-MNR supports -40°C to 105°C, while the ATXMEGA256D3-MHR supports -40°C to 85°C. Selection between these parts should be based on application-specific temperature requirements. Both parts are functionally equivalent across all electrical and memory specifications. Packaging format differences (Cut Tape & Digi-Reel® for the MHR variant) do not affect component functionality or PCB integration.

Frequently Asked Questions (FAQ)

Q: Are ATXMEGA256D3-MNR and ATXMEGA256D3-MHR pin-compatible?

A: Yes. Both parts use the 64-VFQFN Exposed Pad package (9x9mm) with identical pinout and electrical characteristics. PCB layout and schematic integration remain unchanged between these parts.

Q: What is the primary difference between these substitute parts?

A: The operating temperature range differs. ATXMEGA256D3-MNR operates from -40°C to 105°C, while ATXMEGA256D3-MHR operates from -40°C to 85°C. All other electrical and functional parameters are identical.

Q: Can I use ATXMEGA256D3-MHR in an application designed for ATXMEGA256D3-MNR?

A: Substitution is valid only if the application's maximum operating temperature does not exceed 85°C. If the design requires operation above 85°C, the ATXMEGA256D3-MNR is the appropriate choice.

Q: Do these parts have different packaging options?

A: Both parts are supplied in 64-QFN (9x9) packages. The ATXMEGA256D3-MHR is available in Cut Tape & Digi-Reel® format, while packaging format for ATXMEGA256D3-MNR is not specified in the provided data. Packaging format does not affect component performance or PCB integration.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both ATXMEGA256D3-MNR and ATXMEGA256D3-MHR are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What memory configuration do these parts share?

A: Both parts feature 256KB FLASH program memory (128K x 16), 4KB EEPROM, and 16KB RAM. Memory specifications are identical and do not differentiate these parts.