MX29F200T/B
AUTOMATIC SECTOR ERASE TIMING WAVEFORM
Sector dataindicatedbyA12toA16areerased. External
erase verification is not required because data are
erased automatically by internal control circuit. Erasure
completion can be verified by DATA polling and toggle
bitcheckingafterautomaticerasestarts. Deviceoutputs
0 during erasure and 1 after erasure on Q7.(Q6 is for
togglebit;seetogglebit,DATApolling,timingwaveform)
AUTOMATIC SECTOR ERASE TIMING WAVEFORM (WORD MODE)
Vcc 5V
Sector
Addressn
Sector
Address0
Sector
Address1
A12~A16
A0~A10
555H
555H
555H
tAS
2AAH
2AAH
tCWC
tAH
WE
CE
tCEPH1
tBAL
tAETB
tCEP
tDS
OE
tDH
Command
In
Command
In
Q0,Q1,
Command
In
Command
Command
In
Command
In
Command
Command
In
In
In
Q4(Note 1)
DATA polling
Command
In
Command
In
Command
In
Command
In
Command
In
Command
In
Command
In
Command
In
Q7
Command #AAH Command #55H Command #80H Command #AAH Command #55H Command #30H
(Q0~Q7)
Command #30H
Command #30H
Notes:
(1). Q6:Toggle bit, Q5:Timing-limit bit, Q3: Time-out bit, Q2: Toggle bit
P/N:PM0549
REV. 1.3 , DEC. 24, 2001
30
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