Micron Memory Part Number Decoder May 2026

The Ultimate Guide to the Micron Memory Part Number Decoder

If you work in IT procurement, system building, or hardware repair, you have likely stared at a string of alphanumeric characters on a RAM stick and wondered what it all means. Micron Technology—parent company of the consumer-facing brand Crucial—is one of the world’s largest manufacturers of DRAM, NAND, and SSD storage. Their part numbering system is complex but incredibly logical.

Decoding Micron memory part numbers requires an understanding of the standardized format and the specific information conveyed by each segment. By analyzing the part number, engineers, procurement specialists, and distributors can quickly identify the product family, type, density, speed, package, and other key characteristics. This knowledge can help streamline the component sourcing process, reduce errors, and ensure compatibility with specific applications. micron memory part number decoder

Practical tips

• Always cross-check against the latest Micron datasheet or product selector; Micron updates codes across generations.
• Use the family prefix to choose the right decoding table—don’t apply DDR codes to NAND parts.
• For procurement, match capacity, organization (x8/x16), voltage, speed, and temperature grade—package/ballout matters for rework.
• If uncertain, search the exact full part number on Micron’s site or contact Micron support—suffix letters sometimes represent internal/assembly data not published in public tables.
• Keep a short internal cheat sheet for frequently used families in your organization.

Because memory chips are so small, Micron uses an abbreviated code instead of the full part number. Look for a 5-digit alphanumeric code on the chip. It is usually the second or third row It often starts with Step 2: Use the Official Decoder The Ultimate Guide to the Micron Memory Part

• x72: ECC Module.
• x64: Non-ECC Module.
• x8 / x4: The organization of the individual DRAM chips on the module. "x4" chips allow for better error correction capabilities in server environments compared to "x8".

• Frequency (e.g., 133MHz)
• Latency (e.g., CAS 3-4-4-4)

Segment 6: Package Type (AZ)

• AZ = Standard green PCB, lead-free, halogen-free.
• BZ = Same but with thermal sensor.
• CZ = Specialty industrial coating (conformal).

NAND Flash: Explains the system for flash density, interface, and operating temperature (e.g., MT29F series). Always cross-check against the latest Micron datasheet or