W24257 Datasheet, PDF (6/10 Pages) Winbond – 32K X 8 CMOS STATIC RAM

W24257
Timing Waveforms, continued
Write Cycle 1
Address
#OE
#CS
#WE
D OUT
DIN
TW C
TWR
TC W
TA W
TA S
TO H Z
(1, 4)
TWP
TDW
TD H
Write Cycle 2
(OE = VIL Fixed)
Address
#CS
#WE
D _OUT
D IN
TWC
TCW
TW R
TA W
TA S
TWP
TOH
TWHZ
(1, 4)
TO W
(2)
(3)
TD W
TDH
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 DOUT are the same as the data written to DIN during the write cycle.
3. DOUT provides the read data for the next address.
4. Transition is measured ±500 mV from steady state with CL = 5 pF. This parameter is guaranteed but not 100% tested.
-6-