CY7C1471BV33_11 CYPRESS [Cypress Semiconductor], CY7C1471BV33_11 Datasheet - Page 13

• Manufacturer Part Number: CY7C1471BV33_11
• Description: 72-Mbit (2 M x 36/4 M x 18/1 M x 72) Flow-Through SRAM with NoBL Architecture
• Manufacturer: CYPRESS [Cypress Semiconductor]

Truth Table for Read/Write
The read/write truth table for CY7C1471BV33 follows.
Truth Table for Read/Write
The read/write truth table for CY7C1473BV33 follows.
Notes
Document Number: 001-15029 Rev. *E
Read
Write – No bytes written
Write byte A – (DQ
Write byte B – (DQ
Write byte C – (DQ
Write byte D – (DQ
Write all bytes
Truth Table for Read/Write
The read/write truth table for CY7C1475BV33 follows.
Read
Write – No bytes written
Write byte X − (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
Read
Write – No bytes written
Write byte a – (DQ
Write byte b – (DQ
Write both bytes
Selects are asserted, see section
x
B
C
D
A
a
b
and DQP
X
and DQP
and DQP
and DQP
and DQP
and DQP
and DQP
Function
Function
Function
, and WE. See section
x)
Truth Table for Read/Write on page 13
B
D
A
C
a
b
)
)
)
)
)
)
Truth Table for Read/Write on page
X
= L signifies at least one Byte Write Select is active, BW
CY7C1471BV33, CY7C1473BV33, CY7C1475BV33
[8, 9, 10]
[8, 9, 10]
[8, 9, 10]
WE
WE
H
H
for details.
L
L
L
L
L
L
L
L
L
L
WE
H
L
L
L
13.
X
is valid. Appropriate write is based on which byte write is active.
BW
BW
H
H
H
H
X
H
H
X
L
L
L
L
A
a
All BW = L
BW
BW
BW
X
H
H
X
H
X
H
H
H
H
L
L
L
L
L
X
B
b
x
= Valid signifies that the desired Byte Write
BW
X
H
H
H
H
L
L
C
BW
Page 13 of 35
X
H
H
H
H
L
L
D
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