![](/html/Microchip/27323/page7.png)
FIGURE 1-3: PROGRAMMING EXPRESS ALGORITHM
27C256
Conditions:
Tamb = 25•C ±5•C
VCC = 6.5 ±0.25V
VPP = 13.0 ±0.25V
Start
ADDR = First Location
VCC = 6.5V
VPP = 13.0V
X=0
Program one 100 µs pulse
Increment X
Verify
Byte
Pass
Fail
No
Yes Device
X = 10 ?
Failed
Last
Yes
Address?
No
Increment Address
VCC = V PP = 4.5V, 5.5V
Device
Passed
All
Yes bytes No Device
= original
Failed
data?
2004 Microchip Technology Inc.
DS11001N-page 7