Microchip Technology ATSAMG55J
ATSAMG55J variants from Microchip Technology
ATSAMG55J 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.
- 5 distinct suffix patternsExamples: 19A, 19B, 19A-AU, 19A-MUT, 19B-MUT. 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 5 ATSAMG55J 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 |
|---|---|---|---|---|---|---|
| ATSAMG55J19A | | Official Price: 3.9000 | Official Product URL: https://www.microchip.com/en-us/product/ATSAMG55J19A | Microchip Technology | Active | Compliant | In Stock | |
| ATSAMG55J19B | | Official Price: 3.9100 | Official Product URL: https://www.microchip.com/en-us/product/ATSAMG55J19B | Microchip Technology | Active | Compliant | In Stock | |
| ATSAMG55J19A-AU | IC MCU 32BIT 512KB FLASH 64LQFP | Microchip Technology | Active | Compliant | In Stock | |
| ATSAMG55J19A-MUT | IC MCU 32BIT 512KB FLASH 64QFN | Microchip Technology | Active | Compliant | In Stock | |
| ATSAMG55J19B-MUT | IC MCU 32BIT 512KB FLASH 64QFN | Microchip Technology | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on ATSAMG55J map to package, grade, and reel options.
How to Choose the Right ATSAMG55J 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 ATSAMG55J, 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 "ATSAMG55J" — include the full suffix (e.g. 19A, 19B, 19A-AU). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for ATSAMG55J product family
Identity
Variant Parameters
Source ATSAMG55J with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 5 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 ATSAMG55J product family.