| Alliance RAM chip marking |
| ALLIANCE |
www.alsc.com |
| AS |
AS - Alliance Semiconductor |
| 4 - RAM type |
4 - DRAM |
| C - voltage |
C - 5.0V
LC - 3.3V low voltage |
| E - RAM type |
4 - DRAM |
| 256K - memory density |
256K - 256KBit
1M - 1MBit
4M - 4MBit |
| 16 - bit organization |
4 - x4
8 - x8
16 - x16 |
| 50 - min cycle time |
10 - 10ns
80 - 8ns |
| J - package option |
J - SOJ
? - TSOP |
| C - die revision |
A/B/C ... |
| 9812 - date of manufacture |
98 - year of manufacture
12 - week of manufacture |
| B2124 - Serialization code |
? |
