CY7C1021D-10ZSXA データシートの表示（PDF） - Cypress Semiconductor
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CY7C1021D-10ZSXA Datasheet PDF : 17 Pages
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CY7C1021D
Switching Waveforms (continued)
Figure 8. Write Cycle No. 3 (WE Controlled, OE LOW)
tWC
ADDRESS
CE
tSA
WE
BHE, BLE
DATA I/O
tSCE
tAW
tHA
tPWE
tBW
tHZWE
tSD
Data Valid
tHD
tLZWE
Truth Table
CE OE WE BLE BHE
H
X
X
X
X
L
L
H
L
L
L
H
H
L
L
X
L
L
L
L
H
H
L
L
H
H
X
X
L
X
X
H
H
I/O0–I/O7
High Z
Data Out
Data Out
High Z
Data In
Data In
High Z
High Z
High Z
I/O8–I/O15
High Z
Data Out
High Z
Data Out
Data In
High Z
Data In
High Z
High Z
Mode
Power Down
Read – All bits
Read – Lower bits only
Read – Upper bits only
Write – All bits
Write – Lower bits only
Write – Upper bits only
Selected, Outputs Disabled
Selected, Outputs Disabled
Power
Standby (ISB)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Document Number: 38-05462 Rev. *M
Page 10 of 17
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