Cypress CY7C1034DV33 - Manual (Page 7)

CY7C1034DV33
Document Number: 001-08351 Rev. *C Page 7 of 9
Figure 7. Write Cycle No. 2 (WE Controlled, OE HIGH During Write)
[3, 16, 17]
Figure 8. Write Cycle No. 3 (WE Controlled, OE LOW) [3, 17]
Truth Table
CE
1
CE
2
CE
3
OE WE IO
0
– IO
23
Mode Power
H X X X X High Z Power Down Standby (I
SB
)
X L X X X High Z Power Down Standby (I
SB
)
X X H X X High Z Power Down Standby (I
SB
)
L H L L H Full Data Out Read Active (I
CC
)
L H L X L Full Data In Write Active (I
CC
)
L H L H H High Z Selected, Outputs Disabled Active (I
CC
)
Switching Waveforms
(continued)
t
HD
t
SD
t
PWE
t
SA
t
HA
t
AW
t
SCE
t
WC
t
HZOE
DATA
IN
VALID
NOTE 18
CE
ADDRESS
WE
DATA IO
OE
DATA VALID
t
HD
t
SD
t
LZWE
t
PWE
t
SA
t
HA
t
AW
t
SCE
t
WC
t
HZWE
NOTE 18
CE
ADDRESS
WE
DATA IO
Note
18. During this period, the IOs are in the output state and input signals are not applied.
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