CY7C1486V33-167BGI(2007) データシートの表示（PDF） - Cypress Semiconductor
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CY7C1486V33-167BGI
(Rev.:2007)
(Rev.:2007)
Cypress Semiconductor
CY7C1486V33-167BGI Datasheet PDF : 32 Pages
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CY7C1480V33
CY7C1482V33
CY7C1486V33
Truth Table for Read/Write
The following is a Truth Table for Read/Write for the CY7C1480V33.[5]
Function
Read
Read
Write Byte A – (DQA and DQPA)
Write Byte B – (DQB and DQPB)
Write Bytes B, A
Write Byte C – (DQC and DQPC)
Write Bytes C, A
Write Bytes C, B
Write Bytes C, B, A
Write Byte D – (DQD and DQPD)
Write Bytes D, A
Write Bytes D, B
Write Bytes D, B, A
Write Bytes D, C
Write Bytes D, C, A
Write Bytes D, C, B
Write All Bytes
Write All Bytes
GW
BWE
H
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
L
X
BWD
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
X
BWC
X
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
X
BWB
X
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
X
BWA
X
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
X
Truth Table for Read/Write
The following is a Truth Table for Read/Write for the CY7C1482V33.[5]
Function
GW
Read
H
Read
H
Write Byte A – (DQA and DQPA)
H
Write Byte B – (DQB and DQPB)
H
Write Bytes B, A
H
Write All Bytes
H
Write All Bytes
L
BWE
H
L
L
L
L
L
X
BWB
X
H
H
L
L
L
X
BWA
X
H
L
H
L
L
X
Truth Table for Read/Write
The following is a Truth Table for Read/Write for the CY7C1482V33.[8]
Function
GW
BWE
BWX
Read
H
H
X
Read
H
L
All BW = H
Write Byte x – (DQx and DQPx)
H
L
L
Write All Bytes
H
L
All BW = L
Write All Bytes
L
X
X
Note
8. BWx represents any byte write signal BW[0..7].To enable any byte write BWx, a Logic LOW signal should be applied at clock rise. Any number of bye writes
can be enabled at the same time for any given write.
Document #: 38-05283 Rev. *H
Page 11 of 32
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