W29C020 Datasheet, PDF (16/21 Pages) Winbond – 256K X 8 CMOS FLASH MEMORY

Timing Waveforms, continued
Toggle Bit Timing Diagram
WE
CE
OE
DQ6
TOEH
TDH
TOE
HIGH-Z
W29C020
TWR
Page Write Timing Diagram Software Data Protection Mode
Address A15-0
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 Word 0
Word N-1
Word N
(last word)
Internal write starts
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