xc7wt14 NXP Semiconductors, xc7wt14 Datasheet - Page 9

• Manufacturer Part Number: xc7wt14
• Description: Xc7wt14 Triple Inverting Schmitt Trigger
• Manufacturer: NXP Semiconductors

NXP Semiconductors
14. Application information
XC7WT14
Product data sheet
Fig 13. Average additional I
Linear change of V
The slow input rise and fall times cause additional power dissipation, which can be
calculated using the following formula:
P
ΔI
For XC7WT14 used in relaxation oscillator circuit, see
Note to the application information:
1. All values given are typical unless otherwise specified.
add
P
f
t
t
ΔI
CC(AV)
I
i
r
f
between 0.1V
add
= input frequency (MHz);
= input fall time (ns); 90 % to 10 %;
= input rise time (ns); 10 % to 90 %;
CC(AV)
= f
CC
= additional power dissipation (μW);
i
differs with positive or negative input transitions, as shown in
× (t
ΔI
CC(AV)
(μA)
= average additional supply current (μA).
r
200
150
100
50
× ΔI
0
CC
0
All information provided in this document is subject to legal disclaimers.
to 0.9V
CC(AV)
CC
Rev. 1 — 19 January 2011
+ t
f
2
× ΔI
CC(AV)
) × V
positive-going
4
negative-going
edge
CC
V
edge
CC
where:
(V)
mna058
6
Figure
Triple inverting Schmitt trigger
14.
XC7WT14
Figure
© NXP B.V. 2011. All rights reserved.
13.
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