CY7C130/CY7C131
CY7C140/CY7C141
Switching Characteristics
Over the Operating Range
[6,11]
(continued)
7C131-15
[3,4]
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
BUSY LOW from Address Match
BUSY HIGH from Address Mismatch
BUSY LOW from CE LOW
BUSY HIGH from CE HIGH
[16]
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
5
0
13
15
Note
18
Note
18
15
15
15
15
15
15
[16]
7C130-25
[3]
7C131-25
7C140-25
7C141-25
Min.
Max.
20
20
20
20
5
0
20
25
Note
18
Note
18
25
25
25
25
25
25
7C130-30
7C131-30
7C140-30
7C141-30
Min.
Max.
20
20
20
20
5
0
30
30
Note
18
Note
18
25
25
25
25
25
25
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Description
Min.
Max.
15
15
15
15
INTERRUPT TIMING
t
WINS
t
EINS
t
INS
t
OINR
t
EINR
t
INR
R/W to INTERRUPT Set Time
CE to INTERRUPT Set Time
Address to INTERRUPT Set Time
OE to INTERRUPT Reset Time
[16]
CE to INTERRUPT Reset Time
Address to
[16]
ns
ns
ns
ns
ns
ns
INTERRUPT Reset Time
[16]
Notes:
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
[6,11]
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
t
HZCE
t
PU
t
PD
Read Cycle Time
Address to Data Valid
[12]
Data Hold from Address Change
CE LOW to Data Valid
[12]
7C130-45
7C131-45
7C140-45
7C141-45
Min.
45
Max.
7C130-55
7C131-55
7C140-55
7C141-55
Min.
55
Max.
Unit
ns
55
0
55
25
3
25
5
25
0
35
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Description
Min.
35
Max.
35
0
35
20
3
20
5
20
0
35
0
5
3
0
45
45
25
20
20
35
OE LOW to Data Valid
[12]
OE LOW to Low Z
[9,13, 14]
OE HIGH to High Z
[9,13, 14]
CE LOW to Low
Z
[9,13, 14]
Z
[9,13, 14]
CE HIGH to High
CE LOW to Power-Up
[9]
CE HIGH to Power-Down
[9]
5
CYPRESS [ CYPRESS SEMICONDUCTOR ]
