Microchip Technology ATXMEGA256D
ATXMEGA256D variants from Microchip Technology
ATXMEGA256D Overview
What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 2 distinct suffix patternsExamples: 3, 3-MHR. Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Microcontrollers — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 2 ATXMEGA256D part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|
| ATXMEGA256D3 | | Official Price: 5.3700 | Official Product URL: https://www.microchip.com/en-us/product/ATxmega256D3 | Microchip Technology | Active | Compliant | In Stock | |
| ATXMEGA256D3-MHR | IC MCU 8/16BIT 256KB FLASH 64QFN | Microchip Technology | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on ATXMEGA256D map to package, grade, and reel options.
How to Choose the Right ATXMEGA256D Microcontrollers
Match the footprint first
Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.
Electrical headroom
Compare voltage and current columns in the variant table. For ATXMEGA256D, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "ATXMEGA256D" — include the full suffix (e.g. 3, 3-MHR). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for ATXMEGA256D product family
Identity
Variant Parameters
Source ATXMEGA256D with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 2 ordering variants from Microchip Technology. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the ATXMEGA256D product family.