The last date code to use the “old’ revision is 1627.
On the topmark, there are 5 lines.
Line 1 MAXIM
Line 2 MAX14830
Line 3 ETM YWW -- WHERE YWW IS DATE CODE
Line 4 xxxxxxx --
Line 5 +
Line 4 is seven letters long:
- First letter indicates assembly vendor
- Letters 2-5 are the first 4 letters of the lot number this is where you can tell rev, new rev parts will be QBFJ,
- Letters 6-7 are what we can the “backmark”