Write cycle 1, Write cycle 2, Oe = v – Rainbow Electronics W24L257 User Manual
Page 6: Fixed)
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Preliminary W24L257
- 6 -
Timing Waveforms, continued
Write Cycle 1
Address
OE
T
WC
T
WR
WE
D
OUT
D
IN
T
WP
T
AS
T
OHZ
(1, 4)
T
DW
T
DH
T
AW
CS
T
CW
Write Cycle 2
(OE = V
IL
Fixed)
T
CW
T
WR
Address
T
WC
CS
WE
D
OUT
D
IN
T
AS
T
DH
T
WP
T
WHZ
DW
T
(2)
(3)
T
OW
T
OH
AW
T
(1, 4)
Notes:
1. During this period, I/O pins are in the output state, so input signals of opposite phase to the outputs should not be applied.
2. The data output from D
OUT
are the same as the data written to D
IN
during the write cycle.
3. D
OUT
provides the read data for the next address.
4. Transition is measured
±500 mV from steady state with C
L
= 5 pF. This parameter is guaranteed but not 100% tested.
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