w27e040 Winbond Electronics Corp America, w27e040 Datasheet - Page 10

• Manufacturer Part Number: w27e040
• Description: 512k X 8 Electrically Erasable Eprom
• Manufacturer: Winbond Electronics Corp America

SMART PROGRAMMING ALGORITHM
*: Program the whole chip again without data verification and read.
Increment
Address
*Program whole chip
without data verification and read
Fail
No
Program One 100 S Pulse
Address = First Location
Compare All Bytes
to Original Data
Verify One Byte
Increment X
Vcc = 5V
Vpp = 12V
Vcc = 5V
Last
Address?
Vpp = 5V
Pass
Device
X = 25?
X = 0
Start
Pass
No
Pass
Yes
- 10 -
Yes
Fail
Verify One Byte
Pass
Fail
Fail
Device
W27E040