CY7C1381D CYPRESS [Cypress Semiconductor], CY7C1381D Datasheet - Page 9

• Manufacturer Part Number: CY7C1381D
• Description: 18-Mbit (512K x 36/1M x 18) Flow-Through SRAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document #: 38-05544 Rev. *A
Truth Table
Partial Truth Table for Read/Write
Read Cycle, Begin Burst
Read Cycle, Begin Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Write Cycle, Continue Burst
Write Cycle, Continue Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Write Cycle, Suspend Burst
Write Cycle, Suspend Burst
Read
Read
Write Byte A (DQ
Write Byte B(DQ
Write Bytes A, B (DQ
Write Byte C (DQ
Write Bytes C, A (DQ
Write Bytes C, B (DQ
Write Bytes C, B, A (DQ
DQP
Write Byte D (DQ
Write Bytes D, A (DQ
Write Bytes D, B (DQ
Write Bytes D, B, A (DQ
DQP
Write Bytes D, B (DQ
Write Bytes D, B, A (DQ
DQP
Write Bytes D, C, A ( DQ
DQP
Write All Bytes
Write All Bytes
Note:
8. Table only lists a partial listing of the byte write combinations. Any Combination of BW
Cycle Description
B
B
C
B
, DQP
, DQP
, DQP
, DQP
Function (CY7C1381D)
A
A
A
A
)
)
)
)
(continued)
B
A
C
D
, DQP
, DQP
, DQP
, DQP
A
C
C
D
D
D
, DQ
, DQ
, DQ
, DQ
, DQ
, DQ
C
D
D
B
D
A
C
D
, DQ
, DQ
, DQ
)
, DQ
)
[ 3, 4, 5, 6, 7]
)
)
B
A,
B,
A,
A,
B,
, DQP
ADDRESS
DQP
DQP
DQP
DQP
DQP
C
B
B
B
External
External
Current
Current
Current
Current
Current
Current
, DQ
, DQ
, DQ
, DQ
Used
Next
Next
Next
Next
Next
Next
A
C
C
D
D
D
, DQP
A,
A,
A,
A,
, DQP
, DQP
, DQP
, DQP
, DQP
DQP
DQP
DQP
DQP
B
A
B
A
A
B
CE
C
D
D
D
)
[3, 8]
)
)
)
)
)
X
X
H
H
X
H
X
X
H
H
X
H
L
L
,
,
,
,
1
CE
H
H
X
X
X
X
X
X
X
X
X
X
X
X
GW
PRELIMINARY
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
2
CE
X
X
X
X
X
X
X
X
X
X
X
X
L
L
3
ZZ
L
L
L
L
L
L
L
L
L
L
L
L
L
L
BWE
H
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
ADSP
X
H
H
H
H
H
H
H
H
X
X
X
X
X
X
is valid Appropriate write will be done based on which byte write is active.
BW
ADSC
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
L
L
D
ADV WRITE
X
X
H
H
H
H
H
H
L
L
L
L
L
L
BW
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
X
C
H
H
H
H
H
H
H
H
H
H
L
L
L
L
OE
BW
H
H
H
X
X
H
H
X
X
L
L
L
L
L
CY7C1381D
CY7C1383D
H
H
H
H
H
H
H
H
X
X
L
L
L
L
L
L
L
L
B
CLK
L-H Q
L-H Tri-State
L-H Q
L-H Tri-State
L-H Q
L-H Tri-State
L-H D
L-H D
L-H Q
L-H Tri-State
L-H Q
L-H Tri-State
L-H D
L-H D
Page 9 of 29
BW
H
H
H
H
H
H
H
H
X
X
DQ
L
L
L
L
L
L
L
L
A