Filter
Top Products
CY7C1471V33
CY7C1473V33
CY7C1475V33
Document #: 38-05288 Rev. *J Page 12 of 32
Truth Table for Read/Write
The read-write truth table for CY7C1471V33 follows.
[2, 3, 9]
Function
WE
BW
A
BW
B
BW
C
BW
D
Read H X X X X
Write No bytes written LHHHH
Write Byte A – (DQ
A
and DQP
A
) L LHHH
Write Byte B – (DQ
B
and DQP
B
)LHLHH
Write Byte C – (DQ
C
and DQP
C
)LHHLH
Write Byte D – (DQ
D
and DQP
D
) LHHHL
Write All Bytes L L L L L
Truth Table for Read/Write
The read-write truth table for CY7C1473V33 follows.
[2, 3, 9]
Function
WE
BW
b
BW
a
Read H X X
Write – No Bytes Written L H H
Write Byte a – (DQ
a
and
DQP
a
)LHL
Write Byte b – (DQ
b
and
DQP
b
)LLH
Write Both Bytes L L L
Truth Table for Read/Write
The read-write truth table for CY7C1475V33 follows.
[2, 3, 9]
Function
WE
BW
x
Read HX
Write – No Bytes Written L H
Write Byte X − (DQ
x
and
DQP
x)
LL
Write All Bytes L All BW
= L
Note
9. Table only lists a partial listing of the byte write combinations. Any combination of BW
X
is valid. Appropriate write is based on which byte write is active.
[+] Feedback