Code structure (18 digit)
| Digit (1) | Memory (K) | ||
|---|---|---|---|
| Digit (2) | Large Classification | ||
|
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| Digit (3) | Small Classification | Digit (4)~(5) | Density, Refresh |
| Digit (6)-(7) | :Organization | Digit (8) | Bank |
| Digit (9) | Interface | Digit (10) | Generation |
| Digit (11) | "-" | Digit (12) | Package Type |
| Digit (13) | Temp, Power | Digit (14)~(15) | Speed |
| Digit (16) | Packing | Digit (17)~(18) | Customer |
