W83971D Datasheet, PDF (41/58 Pages) Winbond – AC97 AUDIO CODEC

Preliminary W83971D
13. HOW TO READ THE TOP MARKING
The top marking of W83781D
W83971D
745AA
Left: Winbond logo
1st line: Type number W83971D, D means LQFP (Thickness = 1.4 mm).
2nd line: Tracking code 745 A A
745: packages made in '97, week 45
A: assembly house ID; A means ASE, O means OSE
A: IC revision; A means version A, B means version B
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Publication Release Date: July 1999
Revision A1