CY7C1471V33_12 CYPRESS [Cypress Semiconductor], CY7C1471V33_12 Datasheet - Page 9

• Manufacturer Part Number: CY7C1471V33_12
• Manufacturer: CYPRESS [Cypress Semiconductor]

Truth Table for Read/Write
The read-write truth table for CY7C1471V33 follows.
Notes
Document Number: 38-05288 Rev. *N
Read
Write no bytes written
Write byte A – (DQ
Write byte B – (DQ
Write byte C – (DQ
Write byte D – (DQ
Write all bytes
8. X = “Don't Care.” H = Logic HIGH, L = Logic LOW. BW
9. Write is defined by BW
10. Table only lists a partial listing of the byte write combinations. Any combination of BW
are asserted, see
Truth Table for Read/Write
B
C
D
A
and DQP
X
and DQP
and DQP
and DQP
, and WE. See
Function
B
C
D
A
)
)
)
)
Truth Table for
for details.
Read/Write.
X
= L signifies at least one byte write select is active, BW
[8, 9, 10]
X
is valid. Appropriate write is based on which byte write is active.
WE
H
L
L
L
L
L
L
BW
X
H
H
H
H
L
L
A
X
= valid signifies that the desired byte write selects
BW
H
H
H
H
X
L
L
B
CY7C1471V33
BW
X
H
H
H
H
L
L
C
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BW
H
H
H
H
X
L
L
D