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Document #: 001-06517 Rev. *A Page 6 of 10
Write Cycle No. 1 (CE Controlled)
[13]
Write Cycle No. 2 (WE Controlled, OE HIGH During Write)
[13, 14]
Notes:
13.If CE
goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
14.Data I/O is high-impedance if OE
= V
IH
.
15.During this period the I/Os are in the output state and input signals should not be applied.
Switching Waveforms (continued)
t
WC
DATA VALID
t
AW
t
SA
t
PWE
t
HA
t
HD
t
SD
t
SCE
CE
ADDRESS
WE
DATA I/O
t
HD
t
SD
t
PWE
t
SA
t
HA
t
AW
t
SCE
t
WC
t
HZOE
DATA
IN
VALID
CE
ADDRESS
WE
DATA I/O
OE
NOTE
15
t
HZCE
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