Datasheet

TEST WAVEFORM I
CC
(Opr.)
SWITCHING CHARACTERISTICS TEST WAVEFORM
C
PD
CALCULATION
C
PD
is to be calculated with the following for-
mula by using the measured value of I
CC
(Opr.) in the test circuit opposite.
C
PD
=
I
CC
( Opr )
f
IN
× V
CC
In determining the typical value of C
PD
,a
relatively high frequency of 1 MHz was ap-
plied to f
IN
, in order to eliminate any error
caused by the quiescent supply current.
M54/M74HC4094
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