ATF2500CQL Register AC Characteristics, Input Pin Clock
-25
Symbol
tCOS
tCFS
tSIS
Parameter
Min
Max
12
7
Units
ns
Clock to Output
Clock to Feedback
Input Setup Time
Feedback Setup Time
Hold Time
0
20
20
0
ns
ns
tSFS
tHS
ns
ns
tWS
Clock Width
8
ns
tPS
Clock Period
146
ns
External Feedback 1/(tSIS + tCOS
)
31
37
62
MHz
MHz
MHz
ns
FMAXS
Internal Feedback 1/(tSFS + tCFS
No Feedback 1/(tPS
Asynchronous Reset/Preset Recovery Time
)
)
tARS
20
ATF2500CQL Register AC Characteristics, Product Term Clock
-25
Symbol
tCOA
tCFA
tSIA
Parameter
Min
Max
22
Units
ns
Clock to Output
Clock to Feedback
Input Setup Time
Feedback Setup Time
Hold Time
12
15
10
12
14
28
18
ns
ns
tSFA
tHA
ns
ns
tWA
Clock Width
ns
tPA
Clock Period
ns
External Feedback 1/(tSIA + tCOA
)
27
36
36
MHz
MHz
MHz
ns
FMAXA
Internal Feedback 1/(tSFA + tCFA
)
No Feedback 1/(tPS
)
tARA
Asynchronous Reset/Preset Recovery Time
15
26
ATF2500CQL
0777G–12/01