The (starting with MT) or the 5-digit FBGA code (usually starts with D or N).
| Position | Example | Meaning | |----------|---------|---------| | 1–4 | MT40A | Family: MT = Micron Technology, 40A = DDR4 | | 5–? | 512M | Density (in Megabits). Can be 64M, 128M, 256M, 512M, 1G, 2G, etc. | | Next | 16 | Width (x4, x8, x16, x32) | | Next | JY | Package code (JY = 78-ball BGA, etc.) | | Next | -083E | Speed grade. Common: -062E (DDR4-3200), -083E (DDR4-2400) | | Last | :B | Die revision (A, B, C, etc.) | micron memory part number decoder
: This code shows the type of plastic package and pin setup. The (starting with MT) or the 5-digit FBGA
Let’s decode a real-world example:
: On FBGA chips, look for the second 5-digit code, usually starting with D , C , or Z . Community resources like Reddit's Overclocking Wiki can help identify popular enthusiast chips. Can be 64M, 128M, 256M, 512M, 1G, 2G, etc
Most Micron DRAM part numbers follow this pattern: . Common Codes Definition Technology 40 (DDR4), 60 (DDR5), 41 (DDR3) The generation of memory. Configuration 1G8 (8Gb x8), 512M16 (8Gb x16) Depth (density) and data bus width. Voltage A (1.2V), B (1.1V), K (1.35V) Operating voltage requirements. Speed Grade -062E (DDR4-3200), -075 (DDR4-2666) Max frequency and timing (CL-tRCD-tRP). Die Revision :E , :B , :A The specific manufacturing "generation" or "die". 3. Key Suffixes & Markings FBGA and part decoder | Micron Technology Inc.
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: