CY7C1381C-100AC Cypress Semiconductor Corp, CY7C1381C-100AC Datasheet - Page 15

• Manufacturer Part Number: CY7C1381C-100AC
• Description: IC SRAM 18MBIT 100MHZ 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1381C-100AC

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous
• Memory Size: 18M (512K x 36)
• Speed: 100MHz
• Interface: Parallel
• Voltage - Supply: 3.135 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Document #: 38-05238 Rev. *B
Truth Table
Partial Truth Table for Read/Write
Truth Table for Read/Write
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:
Read
Read
Write Byte A - ( DQ
Write Byte B - ( DQ
Write All Bytes
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 (CY7C1381C)
A
A
A
A
Function (CY7C1383C)
)
)
)
)
[ 3, 4, 5, 6, 7]
B
A
C
D
, DQP
, DQP
, DQP
, DQP
A
B
A
and DQP
and DQP
C
C
D
D
D
, DQ
, DQ
, DQ
, DQ
, DQ
, DQ
C
D
D
B
D
A
C
D
, DQ
, DQ
, DQ
)
, DQ
)
)
)
B
A,
B,
A,
A,
B,
, DQP
ADDRESS
DQP
DQP
DQP
DQP
DQP
C
B
B
B
A
B
Current
Current
Current
Current
Current
Current
, DQ
, DQ
, DQ
, DQ
)
)
Used
Next
Next
Next
Next
[3]
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]
)
)
)
)
)
H
H
X
H
X
X
H
H
X
H
,
,
,
,
1
CE
X
X
X
X
X
X
X
X
X
X
GW
2
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
CE
X
X
X
X
X
X
X
X
X
X
3
GW
H
H
H
H
H
ZZ
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
X
X
H
X
H
H
X
X
H
X
is valid Appropriate write will be done based on which byte write is active.
BWE
BW
ADSC
H
L
L
L
L
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
D
ADV WRITE
H
H
H
H
H
H
L
L
L
L
BW
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
X
C
BW
H
H
H
H
H
H
L
L
L
L
X
H
H
L
L
B
OE
H
H
H
X
X
L
X
X
L
L
BW
H
H
H
H
H
H
H
H
X
X
L
L
L
L
L
L
L
L
CY7C1381C
CY7C1383C
B
CLK
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 15 of 36
BW
H
H
X
L
L
BW
A
DQ
H
H
H
H
H
H
H
H
X
X
L
L
L
L
L
L
L
L
A