74AHC1G1 Philips Semiconductors, 74AHC1G1 Datasheet - Page 11

• Manufacturer Part Number: 74AHC1G1
• Description: Bus buffer/line driver; 3-state
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1999 Aug 05
handbook, halfpage
handbook, halfpage
Inverting Schmitt trigger
I CC(AV)
Fig.13 Typical AHCT1G14 transfer characteristics;
Fig.14 Average I
( A)
(mA)
I CC
200
150
100
50
8
6
4
2
0
0
0
0
V
devices; linear change of V
0.1V
CC
= 5.5 V.
CC
to 0.9V
CC
2.0
2
for AHC1G Schmitt-trigger
CC
.
4.0
positive-going
negative-going
4
I
edge
V CC (V)
edge
between
V I (V)
MNA036
MNA405
6.0
6
11
APPLICATION INFORMATION
The slow input rise and fall times cause additional power
dissipation, this can be calculated using the following
formula:
P
Average I
transitions, as shown in Figs 14 and 15.
AHC1G/AHCT1G14 used in relaxation oscillator circuit,
see Fig.16.
Note to the application information:
1. All values given are typical unless otherwise specified.
handbook, halfpage
ad
P
f
t
t
I
i
r
f
CC(AV)
I CC(AV)
Fig.15 Average I
ad
= input frequency (MHz);
= f
= input fall time (ns); 90% to 10%;
= input rise time (ns); 10% to 90%;
( A)
= additional power dissipation ( W);
200
150
100
i
50
0
= average additional supply current ( A).
(t
0
CC
r
devices; linear change of V
0.1V
74AHC1G14; 74AHCT1G14
differs with positive or negative input
I
CC(AV)
CC
to 0.9V
CC
+ t
2
f
for AHCT1G Schmitt-trigger
CC
I
CC(AV)
.
)
positive-going
4
negative-going
V
edge
Product specification
CC
I
V CC (V)
between
edge
where:
MNA058
6