WCMS0808U1X
Switching Waveforms
(continued)
Write Cycle No. 1
(WE
Controlled)
t
WC
ADDRESS
CE
t
AW
WE
t
SA
t
PWE
t
HA
OE
t
SD
DATA I/O
NOTE 15
t
HZOE
DATA
IN
VALID
t
HD
Write Cycle No. 2
(CE
Controlled)
t
WC
ADDRESS
CE
t
SA
t
AW
WE
t
SD
DATA I/O
DATA
IN
VALID
t
HD
t
HA
t
SCE
Notes:
13. Data I/O is high impedance if OE = V
IH
.
14. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
15. During this period, the I/Os are in output state and input signals should not be applied.
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