74lvc3g14 NXP Semiconductors, 74lvc3g14 Datasheet - Page 9

• Manufacturer Part Number: 74lvc3g14
• Description: Triple Inverting Schmitt Trigger With 5 V Tolerant Input
• Manufacturer: NXP Semiconductors

NXP Semiconductors
14. Waveforms transfer characteristics
15. Application information
74LVC3G14_5
Product data sheet
Fig 9. Transfer characteristic
Fig 11. Typical transfer characteristics
V
CC
= 3.0 V
V
O
V
The slow input rise and fall times cause additional power dissipation, this can be
calculated using the following formula:
P
T
I
add
P
f
t
t
CC(AV)
i
r
f
V
I
add
= input frequency (MHz);
= input fall time (ns); 90 % to 10 %;
= input rise time (ns); 10 % to 90 %;
CC(AV)
H
= f
V
= additional power dissipation ( W);
T+
i
differs with positive or negative input transitions, as shown in
(mA)
I
CC
(t
= average additional supply current ( A).
r
14
12
10
8
6
4
2
0
mna207
0
I
CC(AV)
V
I
Rev. 05 — 5 October 2007
+ t
0.5
f
I
CC(AV)
Triple inverting Schmitt trigger with 5 V tolerant input
1
Fig 10. Definition of V
)
V
CC
1.5
V
V
V
O
T+
I
where:
and V
V
I
mdb627
(V)
T
V
2
T+
limits at 70 % and 20 %.
T+
, V
T
and V
V
74LVC3G14
T
H
Figure
© NXP B.V. 2007. All rights reserved.
mna208
12.
V
H
9 of 17