CY7C1470V25-250AXC CYPRESS [Cypress Semiconductor], CY7C1470V25-250AXC Datasheet - Page 9

• Manufacturer Part Number: CY7C1470V25-250AXC
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document #: 38-05290 Rev. *E
Truth Table
Partial Write Cycle Description
Write Abort (Continue Burst)
Ignore Clock Edge (Stall)
Sleep Mode
Read
Write – No bytes written
Write Byte a – (DQ
Write Byte b – (DQ
Write Bytes b, a
Write Byte c – (DQ
Write Bytes c, a
Write Bytes c, b
Write Bytes c, b, a
Write Byte d – (DQ
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
Read
Write – No Bytes Written
Write Byte X − (DQ
Write All Bytes
Note:
8. 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
active.
Function (CY7C1470V25)
Operation
(continued)
a
b
c
d
x
a
b
and DQP
and DQP
and DQP
and DQP
and DQP
Function (CY7C1472A33)
Function (CY7C1474V25)
and DQP
and DQP
[1, 2, 3, 4, 5, 6, 7]
c
a
d
x)
b
)
)
)
a
b
)
)
)
Next
Current
None
[1, 2, 3, 8]
Address
Used
PRELIMINARY
CE
X
X
X
WE
ZZ
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
ADV/LD
H
X
X
[a:d]
BW
is valid. Appropriate Write will be done based on which Byte Write is
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
WE
d
WE
X
X
X
H
L
L
L
L
BW
H
X
X
x
WE
BW
H
L
L
L
LL
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
OE
c
X
X
X
BW
H
H
x
L
L
CEN
b
H
X
L
CY7C1470V25
CY7C1472V25
CY7C1474V25
BW
H
H
H
H
H
X
H
H
H
L
L
L
L
L
L
L
L
CLK
b
L-H
L-H
X
All BW = L
Page 9 of 27
Three-State
Three-State
BW
BW
H
H
H
L
L
L
x
x
BW
DQ
–
a
x
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
a