W29C040 Datasheet, PDF (16/20 Pages) Winbond – 512K X 8 CMOS FLASH MEMORY

Timing Waveforms, continued
Toggle Bit Timing Diagram
WE
CE
OE
DQ6
TOEH
TDH
TOE
HIGH-Z
W29C040
TWR
Page Write Timing Diagram Software Data Protection Mode
Address A18-0
DQ7-0
CE
OE
WE
TWC
Three-byte sequence for
Byte/page load
cycle starts
software data protection mode
5555
2AAA
5555
AA
55
A0
TWP
TBLC
TWPH
SW0
SW1
SW2 Byte 0
Byte N-1
Byte N
(Last Byte)
Internal write starts
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