sufficientinformation to evaluateEq. (11.6),providingthat acceptablevalues forτ
ns
max
and
t
fs
areused. Thevalueforτ
ns
max
mustbeobtainedwithknowledgeoftheNSlogictechnol-
ogy, which is usuallyavailable fromthe manufacturer. Anacceptable value for t
fs
might
be 20%of (τ
ff
+τ
ns
+t
su
)
max
, giving T
CK
=1.2(τ
ff
+τ
ns
+t
su
)
max
as asafe minimumclock
period. Then from this, a safe maximum clock frequencyf
CK
=1/T
CK
can be obtained.
11.6.3BufferingandGatingtheClock
Thereareother ...
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