Chip erase timing diagram – Rainbow Electronics W49F020 User Manual
Page 17
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Preliminary W49F020
Publication Release Date: October 1999
- 17 -
Revision A1
Timing Waveforms, continued
Chip Erase Timing Diagram
SB2
SB1
SB0
Address A17-0
DQ7-0
CE
OE
WE
SB3
SB4
SB5
Internal Erase starts
Six-byte code for 5V-only software
chip erase
T
WP
T
WPH
T
EC
5555
2AAA
5555
5555
2AAA
5555
XXAA
XX55
XX80
XXAA
XX55
XX10
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