Datasheet

74HC_HCT1G14 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 6 — 27 December 2012 8 of 16
NXP Semiconductors
74HC1G14; 74HCT1G14
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:
P
add
=f
i
 (t
r
I
CC(AV)
+t
f
I
CC(AV)
)  V
CC
Where:
P
add
= additional power dissipation (W)
f
i
= input frequency (MHz)
t
r
= rise time (ns); 10 % to 90 %
Fig 11. Typical 74HC1G14 transfer characteristics; V
CC
=6.0V
mna030
0 3.0 6.0
1.6
0
0.8
I
CC
(mA)
V
I
(V)
Fig 12. Typical 74HCT1G14 transfer characteristics;
V
CC
=4.5V
Fig 13. Typical 74HCT1G14 transfer characteristics;
V
CC
=5.5V
mna031
0 5.0
2.0
0
1.0
I
CC
(mA)
2.5
V
I
(V)
mna032
0
3.0
2.0
1.0
0
3.0 6.0
I
CC
(mA)
V
I
(V)