W27L02 Datasheet, PDF (11/15 Pages) Winbond – 256K X 8 ELECTRIC ALLY ERASABLE EPROM

11. SMART ERASE ALGORITHM 1
Start
X=0
VDD = 5V
Vpp = 12V
A9 = 12V; A0 = V IL
Chip Erase 100 mS Pulse
Address = First Location
VDD = 3.0V
Vpp = 3.0V
Compare
All Bytes to
Fail
FFs (HEX)
Pass
Pass
Device
W27L02
Increment X
No
X = 20?
Yes
Fail
Device
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Publication Release Date: February 20, 2003
Revision A3