W24257A
Timing Waveforms, continued
Write Cycle 1
(OE Clock)
T
WC
Address
T
WR
OE
T
CW
CS
T
AW
WE
T
AS
T
OHZ
D
OUT
T
DW
D
IN
T
DH
(1, 4)
T
WP
Write Cycle 2
(OE = V
IL
Fixed)
T
WC
Address
T
CW
CS
T
AW
WE
T
AS
T
WP
T
WHZ
(1, 4)
T
OH
(2)
T
OW
(3)
T
WR
D
OUT
T
DW
D
IN
T
DH
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.
-7-
Publication Release Date: May 1997
Revision A14
WINBOND [ WINBOND ]
