CY62128EV30
Document #: 38-05579 Rev. *D
Page 7 of 11
Figure 5. Write Cycle No. 2
(CE1 or CE2 controlled)
[10, 14, 18, 19]
Figure 6. Write Cycle No. 3
(WE controlled, OE LOW)
[10, 19]
Switching Waveforms
(continued)
t
WC
DATA VALID
t
AW
t
SA
t
PWE
t
HA
t
HD
t
SD
t
SCE
ADDRESS
CE
DATA IO
WE
DATA VALID
t
HD
t
SD
t
LZWE
t
PWE
t
SA
t
HA
t
AW
t
SCE
t
WC
t
HZWE
ADDRESS
CE
WE
DATA IO
NOTE 20
Table 2. Truth Table for CY62128EV30
CE
1
CE
2
WE
OE
Inputs/Outputs
Mode
Power
H
X
X
X
High Z
Deselect/Power Down
Standby (I
SB
)
X
L
X
X
High Z
Deselect/Power Down
Standby (I
SB
)
L
H
H
L
Data Out
Read
Active (I
CC
)
L
H
H
H
High Z
Output Disabled
Active (I
CC
)
L
H
L
X
Data in
Write
Active (I
CC
)
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