W39L040 Winbond, W39L040 Datasheet - Page 24

• Manufacturer Part Number: W39L040
• Description: 512 K X 8 CMOS FLASH MEMORY
• Manufacturer: Winbond

11. HOW TO READ THE TOP MARKING
Example: The top marking of 32-pin TSOP W39L040T-70
1
2
3
4
st
nd
rd
th
line: Winbond logo
line: the lot number
line: the tracking code: 149 O B SA
line: the part number: W39L040T-70
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
2138977A-A12
W39L040T-70
149OBSA
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W39L040