CY7C130/CY7C131
CY7C140/CY7C141
5
BUSY/INTERRUPT TIMING
tBLA BUSY LOW from Address Mat ch 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 55ns
t
WB[17] R/W LOW after BUSY LOW 0 00ns
t
WH R/W H IGH a fter BUS Y HIGH 13 20 30 ns
tBDD BUSY HIGH to Valid Data 15 25 30 ns
tDDD Wr ite 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 t o INTERRUPT Set T i me 15 25 25 ns
tEINS CE to INTERRUPT Set Time 15 25 25 ns
tINS Address to INTERRUPT Se t T ime 15 25 25 ns
tOINR OE to INT ERRUPT Reset Time[16] 15 25 25 ns
tEINR CE to INTERRUPT Reset Time[16] 15 25 25 ns
tINR Address to INTERRUPT Re set T im e[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 H IGH.
Port B’s addr ess is to ggled.
CE for P ort B i s toggled.
R/W for Po rt B is tog gled dur ing v alid read .
Switching Characteristics Over the Operatin g 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 Val id[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] 333ns
t
HZOE OE HIGH to High Z[9,13, 14] 20 20 25 ns
tLZCE CE LOW to Low Z[9,13, 14] 555ns
t
HZCE CE HIGH to High Z[9,13, 14] 20 20 25 ns
tPU CE LOW to Power-Up[9] 000ns
t
PD CE HIGH to Power-Down[9] 35 35 35 ns
Switching Characteristics Over the Operating Range[6,11] (con tinued)
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