CY7C130/CY7C131
CY7C140/CY7C141
5
BUSY/INTERRUPT TIMING
tBLA
BUSY LOW from Address Match
15
20
20
ns
tBHA
BUSY HIGH from Address Mismatch[16]
15
20
20
ns
tBLC
BUSY LOW from CE LOW
15
20
20
ns
tBHC
BUSY HIGH from CE HIGH[16]
15
20
20
ns
tPS
Port Set Up for Priority
5
55
ns
tWB
[17]
R/W LOW after BUSY LOW
0
00
ns
tWH
R/W HIGH after BUSY HIGH
13
20
30
ns
tBDD
BUSY HIGH to Valid Data
15
25
30
ns
tDDD
Write Data Valid to Read Data Valid
Note
18
Note
18
Note
18
ns
tWDD
Write Pulse to Data Delay
Note
18
Note
18
Note
18
ns
INTERRUPT TIMING
tWINS
R/W to INTERRUPT Set Time
15
25
25
ns
tEINS
CE to INTERRUPT Set Time
15
25
25
ns
tINS
Address to INTERRUPT Set Time
15
25
25
ns
tOINR
OE to INTERRUPT Reset Time[16]
15
25
25
ns
tEINR
CE to INTERRUPT Reset Time[16]
15
25
25
ns
tINR
Address to INTERRUPT Reset Time[16]
15
25
25
ns
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
7C130-45
7C131-45
7C140-45
7C141-45
7C130-55
7C131-55
7C140-55
7C141-55
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
Unit
READ CYCLE
tRC
Read Cycle Time
35
45
55
ns
tAA
Address to Data Valid[12]
35
45
55
ns
tOHA
Data Hold from Address Change
0
0
0
ns
tACE
CE LOW to Data Valid[12]
35
45
55
ns
tDOE
OE LOW to Data Valid[12]
20
25
25
ns
tLZOE
OE LOW to Low Z[9,13, 14]
33
3
ns
tHZOE
OE HIGH to High Z[9,13, 14]
20
20
25
ns
tLZCE
CE LOW to Low Z[9,13, 14]
55
5
ns
tHZCE
CE HIGH to High Z[9,13, 14]
20
20
25
ns
tPU
CE LOW to Power-Up[9]
00
0
ns
tPD
CE HIGH to Power-Down[9]
35
35
35
ns
Switching Characteristics Over the Operating Range[6,11] (continued)
7C131-15[3,4]
7C141-15
7C130-25[3]
7C131-25
7C140-25
7C141-25
7C130-30
7C131-30
7C140-30
7C141-30
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
Unit
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