11 / 31 page
CY7C1480V25
CY7C1482V25
CY7C1486V25
Document #: 38-05282 Rev. *G
Page 11 of 31
Truth Table for Read/Write[4]
Function (CY7C1482V25)
GW
BWE
BWB
BWA
Read
H
H
X
X
Read
H
L
H
H
Write Byte A – (DQA and DQPA)H
L
H
L
Write Byte B – (DQB and DQPB)H
L
L
H
Write Bytes B, A
H
L
L
L
Write All Bytes
H
L
L
L
Write All Bytes
L
X
X
X
Truth Table for Read/Write[7]
Function (CY7C1486V25)
GW
BWE
BWX
Read
HH
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:
7. 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.
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