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CY62158DV30
MoBL
Document #: 38-05391 Rev. *D
Page 7 of 11
Truth Table
CE1
CE2
WE
OE
Inputs/Outputs
Mode
Power
H
X
X
X
High Z
Deselect/Power-down
Standby (ISB)
X
L
X
X
High Z
Deselect/Power-down
Standby (ISB)
L
H
H
L
Data Out (I/O0-I/O7)
Read
Active (ICC)
L
H
H
H
High Z
Output Disabled
Active (Icc)
L
H
L
X
Data in (I/O0-I/O7)
Write
Active (Icc)
Notes:
20. Data I/O is high impedance if OE = VIH.
21. During this period, the I/Os are in output state and input signals should not be applied.
22. If CE1 goes HIGH or CE2 goes LOW simultaneously with WE HIGH, the output remains in high-impedance state.
Switching Waveforms (continued)
tWC
VALID DATA
tAW
tSA
tPWE
tHA
tHD
tSD
tSCE
CE1
ADDRESS
CE2
WE
DATA I/O
Write Cycle No. 2(CE1 or CE2 Controlled)
[16, 20, 22]
OE
VALID DATA
tHD
tSD
tLZWE
tPWE
tSA
tHA
tAW
tSCE
tWC
tHZWE
CE1
ADDRESS
CE2
WE
DATAI/O
NOTE [21]
Write Cycle No. 3 (WE Controlled, OE LOW)
[22]
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