CY7C131-35JI Datasheet Download

Part No.:
CY7C131-35JI
Download:
Download Datasheet
Description:
[1K x 8 Dual-Port Static RAM]
File Size:
573 K
Page:
19 Pages
Logo:
Manufacturer:
CYPRESS [ CYPRESS SEMICONDUCTOR ]
PCB Prototype
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CY7C130/CY7C131
CY7C140/CY7C141
Switching Characteristics
Over the Operating Range
[6, 11]
(continued)
7C131-15
[3]
7C141-15
Parameter
BUSY/INTERRUPT TIMING
t
BLA
t
BHA
t
BLC
t
BHC
t
PS
t
WB[17]
t
WH
t
BDD
t
DDD
t
WDD
t
WINS
t
EINS
t
INS
t
OINR
t
EINR
t
INR
BUSY LOW from Address Match
BUSY HIGH from Address Mismatch
BUSY LOW from CE LOW
BUSY HIGH from CE HIGH
Port Set Up for Priority
R/W LOW after BUSY LOW
R/W HIGH after BUSY HIGH
BUSY HIGH to Valid Data
Write Data Valid to Read Data Valid
Write Pulse to Data Delay
R/W to INTERRUPT Set Time
CE to INTERRUPT Set Time
Address to INTERRUPT Set Time
OE to INTERRUPT Reset Time
CE to INTERRUPT Reset Time
Address to INTERRUPT Reset Time
5
0
13
15
Note 18
Note 18
15
15
15
15
15
15
15
15
15
15
5
0
20
25
Note 18
Note 18
25
25
25
25
25
25
20
20
20
20
5
0
30
30
Note 18
Note 18
25
25
25
25
25
25
20
20
20
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Description
Min.
Max.
7C130-25
[3]
7C131-25
7C140-25
7C141-25
Min.
Max.
7C130-30
7C131-30
7C140-30
7C141-30
Min.
Max.
Unit
INTERRUPT TIMING
Shaded areas contain preliminary information.
Note:
16. These parameters are measured from the input signal changing, until the output pin goes to a high-impedance state.
17. CY7C140/CY7C141 only.
18. A write operation on Port A, where Port A has priority, leaves the data on Port B’s outputs undisturbed until one access time after one of the following:
BUSY on Port B goes HIGH.
Port B’s address is toggled.
CE for Port B is toggled.
R/W for Port B is toggled during valid read.
Switching Characteristics
Over the Operating Range
7C130-35
7C131-35
7C140-35
7C141-35
Parameter
READ CYCLE
t
RC
t
AA
t
OHA
t
ACE
t
DOE
t
LZOE
t
HZOE
t
LZCE
Read Cycle Time
Address to Data Valid
Data Hold from Address Change
CE LOW to Data Valid
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE LOW to Low Z
5
3
20
5
0
35
20
3
20
5
35
35
0
45
25
3
25
45
45
0
55
25
55
55
ns
ns
ns
ns
ns
ns
ns
ns
Description
Min.
Max.
7C130-45
7C131-45
7C140-45
7C141-45
Min.
Max.
7C130-55
7C131-55
7C140-55
7C141-55
Min.
Max.
Unit
Document #: 38-06002 Rev. *D
Page 6 of 19