MX29F400T/B
AUTOMATIC PROGRAMMING TIMING
WAVEFORM
One byte data is programmed. Verify in fast algorithm
and additional programming by external control are not
required because these operations are executed auto-
matically by internal control circuit. Programming
completion can be verified by DATA polling and toggle
bit checking after automatic verification starts. Device
outputs DATA during programming and DATA after pro-
gramming on Q7.(Q6 is for toggle bit; see toggle bit,
DATA polling, timing waveform)
AUTOMATIC PROGRAMMING TIMING WAVEFORM (WORD MODE)
Vcc 5V
A11~A17
A0~A10
WE
CE
OE
Q0,Q1,Q2
Q4(Note 1)
Q7
555H
tAS
tAH
2AAH
tCWC
555H
tCEPH1
tCEP
tDS tDH
Command In
Command In
Command In
Command In
Command #AAH
(Q0~Q7)
Command In
Command #55H
Command In
Command #A0H
Notes:
(1). Q6:Toggle bit, Q5:Timing-limit bit, Q3: Time-out bit
ADD Valid
ADD Valid
tAVT
tCESC
Data In
tDF
DATA
DATA polling
Data In
DATA
tOE
DATA
P/N:PM0439
REV. 1.6, NOV. 12, 2001
23