w27c512 Winbond Electronics Corp America, w27c512 Datasheet - Page 12

• Manufacturer Part Number: w27c512
• Description: 64k X 8 Electrically Erasable Eprom
• Manufacturer: Winbond Electronics Corp America

SMART ERASE ALGORITHM
Increment
Address
No
Chip Erase 100 mS Pulse
Address = First Location
A9 = 14V; A0 = V
OE/Vpp = V
OE/Vpp = 14V
OE/Vpp = V
Increment X
Vcc = 3.75V
All Bytes to
FFs (HEX)
Vcc = 5V
Compare
Last
Address?
Pass
Device
Vcc = 5V
Start
Erase
Verify
X = 0
Yes
Pass
Pass
IL
IL
- 12 -
IL
Fail
Fail
Yes
No
Fail
Device
X = 20 ?
W27C512