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CY7C1440KV33 Datasheet(PDF) 25 Page - Cypress Semiconductor

Part # CY7C1440KV33
Description  36-Mbit (1M36/2M18) Pipelined Sync SRAM (With ECC)
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C1440KV33 Datasheet(HTML) 25 Page - Cypress Semiconductor

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CY7C1440KV33
CY7C1442KV33
CY7C1440KVE33
Document Number: 001-66676 Rev. *G
Page 25 of 33
Figure 5. Write Cycle Timing [27, 28]
Switching Waveforms (continued)
tCYC
tCL
CLK
ADSP
tADH
tADS
ADDRESS
tCH
OE
ADSC
CE
tAH
tAS
A1
tCEH
tCES
BWE,
BWX
Data Out (Q)
High-Z
ADV
BURST READ
BURST WRITE
D(A2)
D(A2 + 1)
D(A2 + 1)
D(A1)
D(A3)
D(A3 + 1)
D(A3 + 2)
D(A2 + 3)
A2
A3
Data In (D)
Extended BURST WRITE
D(A2 + 2)
Single WRITE
tADH
tADS
tADH
tADS
t
OEHZ
t
ADVH
t
ADVS
tWEH
tWES
tDH
tDS
GW
tWEH
tWES
Byte write signals are
ignored for first cycle when
ADSP initiates burst
ADSC extends burst
ADV suspends burst
DON’T CARE
UNDEFINED
Notes
27. On this diagram, when CE is LOW: CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH: CE1 is HIGH or CE2 is LOW or CE3 is HIGH.
28. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BWX LOW.


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