W83977F-A Datasheet, PDF (180/182 Pages) Winbond – WINBOND I/O

W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
18. HOW TO READ THE TOP MARKING
Example: The top marking of W83977F-A
inbond
W83977TF-A
© AM. MEGA. 87-96
719AB27039520
1st line: Winbond logo
2nd line: the type number: W83977F-A
3rd line: the source of KBC F/W -- American Megatrends Incorporated^TM
4th line: Tracking code 719 A B 2 6519520
719: packages made in '97, week 19
A: assembly house ID; A means ASE, S means SPIL
B: IC revision; B means version B, C means version C
2: wafers manufactured in Winbond FAB 2
7039520: wafer production series lot number
Example: The top marking of W83977G-A
inbond
W83977G-A
AM. MEGA. 87-96
520AB26519520
1st line: Winbond logo
2nd line: the type number: W83977G-A
3rd line: the source of KBC F/W -- American Megatrends Incorporated^TM
4th line: Tracking code 709 A B 2 6519520
520: packages made in '05, week 20
A: assembly house ID; A means ASE, S means SPIL
B: IC revision; B means version B, C means version C
2: wafers manufactured in Winbond FAB 2
6519520: wafer production series lot number
-172