W29C040 데이터 시트보기 (PDF) - Winbond

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W29C040

512K ·8 CMOS FLASH MEMORY

Winbond 

HOW TO READ THE TOP MARKING

Example: The top marking of 32-pin TSOP W29C040T-90

W29C040

W29C040T-90

2138977A-A12

149OBSA

1st line: winbond logo

2nd line: the part number: W29C040T-90

3rd line: the lot number

4th line: the tracking code: 149 O B SA

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.

SA: Process code

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