Let’s slice it piece by piece.
To get the total chip capacity in Gigabytes, divide by 8. (512Mbit / 8 = 64MByte per chip).
Following the hyphen is the speed grade. This tells you either the clock cycle time in nanoseconds or the maximum data rate. micron memory part number decoder
: Often indicates parts used specifically for Crucial brand modules. : Reserved for engineering samples. 2. How to Use the Decoder Tool To identify a specific chip, use the official Micron FBGA Part Marking Decoder Locate the Code: Find the 5-digit string on the physical chip. Enter the code into the "FBGA Code" field on the website. The tool returns the full Marketing Part Number (e.g., MT40A1G8SA-075:E ), which can then be used to find the Product Data Sheet 3. Anatomy of a Micron Part Number A full Micron MPN (like MT40A1G8SA-075:E ) breaks down into specific segments: : Micron Technology. : Product Family (e.g., 40 = DDR4 SDRAM, 41 = DDR3).
[MT] [29F] [256G08] [C] [B] [A] [B] [B] [H7] - [12] : [B] ── ─── ────── ─ ─ ─ ─ ─ ── ── ─ 1 2 3 4 5 6 7 8 9 10 11 Always MT for Micron Technology. Device Type: 29F signifies NAND Flash memory. Let’s slice it piece by piece
This is the complete, official manufacturing string (e.g., MT40A1G8SA-062E:E ) found on module labels or data sheets.
Always cross-reference your decoded guess with the official Micron datasheet. That said, the standard configuration follows a reliable pattern. Following the hyphen is the speed grade
Micron provides an official FBGA and Component Marking Decoder to convert this short code into a full part number. 2. Breaking Down the Part Number (Documentation Level) Once you have the full part number (e.g., MT40A512M16LY-083R:H
A standard Micron part number reads from left to right, starting with the broadest category (the manufacturer and technology type) and ending with the most specific attributes (the component revision and packaging format).
Is it a or a 5-digit FBGA code (usually starts with D)? What device or equipment did the memory come from? Share public link
Because of physical space constraints on small memory packages, Micron cannot print the entire MPN on the chip. Instead, they use a five-digit alphanumeric code