M28256
Figure 13. Software Protected Write Cycle Waveforms
G
E
W
A0-A5
A6-A14
DQ0-DQ7
tAVEL
tWLWH
tWHWL
tWHWH
tWLAX
Byte Address
tWHDX
5555h
2AAAh
5555h
Page Address
tDVWH
AAh
55h
A0h
Byte 0
Byte 62
Byte 63
AI01704
Note: A6 through A14 must specify the same page address during each high to low transition of W (or E) after the software code has been
entered. G must be high only when W and E are both low.
Figure 14. Data Polling Waveform Sequence
A0-A14
Address of the last byte of the Page Write instruction
E
G
W
DQ7
DQ7
LAST WRITE
DQ7
DQ7
DQ7
INTERNAL WRITE SEQUENCE
DQ7
READY
AI01705
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