CY7C130, CY7C130A
CY7C131, CY7C131A
Document Number: 38-06002 Rev. *H Page 10 of 22
Busy/Interrupt Timing
t
BLA
BUSY LOW from address match – 20 – 25 – 30 ns
t
BHA
BUSY HIGH from address mismatch
[30]
– 20 – 25–30ns
t
BLC
BUSY LOW from CE LOW – 20 – 25 – 30 ns
t
BHC
BUSY HIGH from CE HIGH
[30]
– 20 – 25–30ns
t
PS
Port set-up for priority 5 – 5 – 5 – ns
t
WB
[31]
R/W LOW after BUSY LOW 0 – 0 – 0 – ns
t
WH
R/W HIGH after BUSY HIGH 30 – 35 – 35 – ns
t
BDD
BUSY HIGH to valid data – 35 – 45 – 45 ns
t
DDD
Write data valid to read data valid – Note 32 – Note 32 – Note 32 ns
t
WDD
Write pulse to data delay – Note 32 – Note 32 – Note 32 ns
Interrupt Timing
t
WINS
R/W to INTERRUPT set time – 25 – 35 – 45 ns
t
EINS
CE to INTERRUPT set time – 25 – 35 – 45 ns
t
INS
Address to INTERRUPT set time – 25 – 35 – 45 ns
t
OINR
OE to INTERRUPT reset time
[20]
– 25 – 35–45ns
t
EINR
CE to INTERRUPT reset time
[20]
– 25 – 35–45ns
t
INR
Address to INTERRUPT reset time
[20]
– 25 – 35–45ns
Switching Characteristics
Over the Operating Range
[23, 24]
(continued)
Parameter Description
7C130-35
7C131-35
7C140-35
7C141-35
7C130-45
7C131-45
7C140-45
7C141-45
7C130-55
7C131-55
7C140-55
7C141-55
Unit
Min Max Min Max Min Max
Notes
30. These parameters are measured from the input signal changing, until the output pin goes to a high-impedance state.
31. CY7C140/CY7C141 only.
32. 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.
