CY7C131-15JI Cypress Semiconductor Corp, CY7C131-15JI Datasheet - Page 6

• Manufacturer Part Number: CY7C131-15JI
• Description: SRAM Chip Async Dual 5V 8K-Bit 1K x 8 15ns 52-Pin PLCC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C131-15JI

• Package: 52PLCC
• Timing Type: Asynchronous
• Density: 8 Kb
• Typical Operating Supply Voltage: 5 V
• Address Bus Width: 10 Bit
• Number Of I/o Lines: 8 Bit
• Number Of Ports: 2
• Number Of Words: 1K

Switching Characteristics
Switching Characteristics
Document #: 38-06002 Rev. *D
t
t
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t
t
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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:
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t
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BLA
BHA
BLC
BHC
PS
WB
WH
BDD
DDD
WDD
WINS
EINS
INS
OINR
EINR
INR
BUSY/INTERRUPT TIMING
INTERRUPT TIMING
RC
AA
OHA
ACE
DOE
LZOE
HZOE
LZCE
READ CYCLE
Parameter
Parameter
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.
[17]
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
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
Description
Description
Over the Operating Range
[9, 13, 14]
Over the Operating Range
[9, 13, 14]
[9, 13, 14]
[12]
[12]
[12]
[16]
[16]
[16]
[16]
[16]
[6,11]
[6, 11]
Min.
Min.
(continued)
35
7C131-15
13
0
3
5
7C130-35
7C131-35
7C140-35
7C141-35
5
0
7C141-15
Note 18
Note 18
Max.
Max.
35
35
20
20
15
15
15
15
15
15
15
15
15
15
15
[3]
Min.
Min.
7C130-25
20
45
5
0
7C130-45
7C131-45
7C140-45
7C141-45
0
3
5
7C131-25
7C140-25
7C141-25
Note 18
Note 18
CY7C130/CY7C131
CY7C140/CY7C141
Max.
Max.
20
20
20
20
25
25
25
25
25
25
25
45
45
25
20
[3]
Min.
Min.
55
30
7C130-55
7C131-55
7C140-55
7C141-55
0
3
5
5
0
7C130-30
7C131-30
7C140-30
7C141-30
Note 18
Note 18
Max.
Max.
55
55
25
25
20
20
20
20
30
25
25
25
25
25
25
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Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns