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CY7C1021 Datasheet(PDF) 6 Page - Cypress Semiconductor

Part # CY7C1021
Description  64K x 16 Static RAM
Download  9 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C1021 Datasheet(HTML) 6 Page - Cypress Semiconductor

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CY7C1021
Document #: 38-05054 Rev. **
Page 6 of 9
Switching Waveforms (continued)
Write Cycle No. 3 (WE Controlled, LOW)
1021-10
tHD
tSD
tSCE
tHA
tAW
tPWE
tWC
tBW
DATA I/O
ADDRESS
CE
WE
BHE, BLE
tSA
tLZWE
tHZWE
Truth Table
CE
OE
WE
BLE
BHE
I/O1–I/O8
I/O9–I/O16
Mode
Power
H
X
X
X
X
High Z
High Z
Power-Down
Standby (ISB)
L
L
H
L
L
Data Out
Data Out
Read - All bits
Active (ICC)
L
H
Data Out
High Z
Read - Lower bits only
Active (ICC)
H
L
High Z
Data Out
Read - Upper bits only
Active (ICC)
L
X
L
L
L
Data In
Data In
Write - All bits
Active (ICC)
L
H
Data In
High Z
Write - Lower bits only
Active (ICC)
H
L
High Z
Data In
Write - Upper bits only
Active (ICC)
L
H
H
X
X
High Z
High Z
Selected, Outputs Disabled
Active (ICC)
L
X
X
H
H
High Z
High Z
Selected, Outputs Disabled
Active (ICC)


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