W29EE512 Datasheet, PDF (19/22 Pages) Winbond – 64K X 8 CMOS FLASH MEMORY

HOW TO READ THE TOP MARKING
Example: The top marking of 32L-PLCC W29EE512P-70B
W29EE512
W29EE512P-70B
2138977A-A12
149OBRA
1^st line: winbond logo
2^nd line: the part number: W29EE512P-70B
3^rd line: the lot number
4^th line: the tracking code: 149 O B RA
149: Packages made in ’01, week 49
O: Assembly house ID: A means ASE, O means OSE, ... etc.
B: IC revision; A means version A, B means version B, ... etc.
RA: Process code
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Publication Release Date: February 18, 2002
Revision A7