When interpreting your memory part numbers, keep this quick reference guide handy: Look for the prefix to confirm it is a Micron component.
| Code | DDR4 Speed | Description | |------|------------|-------------| | -2E | DDR4-2400 | 17-17-17 | | -2G | DDR4-2666 | 19-19-19 | | -3G2 | DDR4-3200 | 22-22-22 | | -062E | DDR4-3200 (different tCK) | Alternative | | For DDR5: | | | | -40B | DDR5-4800 | 40-40-40 | | -5G2 | DDR5-5200 | 42-42-42 | | -6G2 | DDR5-5600 | 46-46-46 | | -8G2 | DDR5-6400 | 52-52-52 |
When you have a physical Micron chip and cannot find the part number, you must decode its FBGA marking, which is the shortened version of the part number. The key is usually found in a 5‑digit alphanumeric code on the component's second line. This 5‑digit code, such as "D9PTK," is the FBGA code that uniquely maps to the full part number.
A typical Micron part number (MPN) usually follows this flow:
The speed grade determines the maximum clock frequency and data rate the memory can safely handle. : DDR4-3200 (PC4-25600) with CL22 timing -053E : DDR4-3733 -48B : DDR5-4800 -56B : DDR5-5600 6. Die Revision micron memory part number decoder
Avoid costly sourcing mistakes by reading the exact manufacturer specifications directly from the part string. The Core Structure of a Micron Part Number
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Learning to decode Micron’s part numbers saves you from costly compatibility errors and helps you source exact replacements in seconds. While the system looks intimidating at first glance, it follows strict JEDEC and internal logic. Memorize the core segments:
Micron’s Dynamic Random-Access Memory (DRAM) includes DDR3, DDR4, DDR5, and Low-Power DDR (LPDDR) modules. A typical DRAM component part number looks like this: . When interpreting your memory part numbers, keep this
Now, let's examine a few examples of Micron Flash part numbers:
Let’s decode a real-world example:
When you need to cross-reference or replace Micron memory components, follow these steps to ensure total accuracy:
Example: MT40A2G8BA-062E:D
NOR Flash part numbers, such as the popular MT25QL128ABA1ESE-0SIT in the MT25Q series or the legacy M25P and N25Q series, follow their own structure for easy identification . For the series, the part number N25Q064A11E reveals:
This letter indicates the generation or major revision.
: Micron Standard Memory Module (e.g., desktop DDR4/DDR5 DIMMs).
: Finding exact replacements for EOL (End of Life) components. Performance Tuning This 5‑digit code, such as "D9PTK," is the