Because Micron updates its catalog frequently as newer lithographies (like 1-alpha, 1-beta, and 1-gamma nodes) debut, using an official database is the safest approach. Step 1: Locate the Numbers

Prefix indicating Micron manufacturer. 40 (Product Family): 40: DDR4 SDRAM 41: DDR3 SDRAM 53: LPDDR4/LPDDR5 62: Mobile LPDDR2 A (Voltage): A: 1.2V (DDR4) B/C/D/K: Other voltages (e.g., 1.35V DDR3L) 1G8 (Configuration): 1G: Density ( 8: Bus width ( ×8cross 8 S (Revision): Die revision (e.g., A, B, C). A (Package): Defines physical FBGA package. -062E (Speed/Latency): -062E: DDR4-3200 (0.625ns) -075: DDR4-2666 (0.75ns) IT (Operating Temperature): Blank: Commercial ( IT: Industrial ( AT: Automotive ( or higher) :E (Die Revision): Final component revision designator.

The tool will output the full, valid standard part number (e.g., MT40A1G8SA-062E:E). Quick Reference Summary Table Code Segment Example Value What It Tells You Micron Technology product Family Generation variant (e.g., DDR4) Density Total capacity of the silicon die Width Output data width (x16 organization) Speed Maximum frequency rating (DDR4-3200) Revision Silicon die design generation

Micron Technology is a global leader in semiconductor systems, producing vast quantities of DRAM, NAND flash, and solid-state storage. If you have ever looked at a Micron memory module or chip, you have likely seen a complex string of alphanumeric characters printed on the surface.

Here’s a helpful guide to decoding (for DRAM, NAND, and DDR modules). Micron (which includes the Crucial brand) uses a structured numbering system. Once you understand the key fields, you can identify density, speed, generation, package, and more.

[MT] [40] [A] [1G8] [SA] - [062E] : [E] | | | | | | | 1 2 3 4 5 6 7 1. Brand Identifier

Micron modules (DIMMs, SODIMMs, RDIMMs) use a different format.