74LV14 View Datasheet(PDF) - Nexperia B.V. All rights reserved
Part Name
Description
MFG CO.
74LV14 Datasheet PDF : 18 Pages
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Nexperia
74LV14
Hex inverting Schmitt trigger
15. Application information
The slow input rise and fall times cause additional power dissipation, this can be
calculated using the following formula:
Padd = fi (tr ICC(AV) + tf ICC(AV)) VCC where:
Padd = additional power dissipation (W);
fi = input frequency (MHz);
tr = rise time (ns); 10 % to 90 %;
tf = fall time (ns); 90 % to 10 %;
ICC(AV) = average additional supply current (A).
Average ICC(AV) differs with positive or negative input transitions, as shown in Figure 13.
An example of a relaxation circuit using the 74LV14 is shown in Figure 14.
ǻ,&& $9
$
DDK
9&& 9
(1) Positive-going edge.
(2) Negative-going edge.
Fig 13. Average additional supply current as a function of VCC
5
f
=
-1-
T
0----.-8-----1----R----C---
Fig 14. Relaxation oscillator
74LV14
Product data sheet
&
PQD
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 9 December 2015
© Nexperia B.V. 2017. All rights reserved
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