74HCU04
TYPICAL APPLICATIONS
V
CC
TEST POINT
t
r
INPUT A
90%
50%
10%
t
PHL
OUTPUT Y
t
THL
90%
50%
10%
t
TLH
*Includes all probe and jig capacitance
t
f
V
CC
GND
t
PLH
DEVICE
UNDER
TEST
OUTPUT
C
L
*
A
Y
Figure 1. Switching Waveforms
Figure 2. Test Circuit
Figure 3. Logic Detail
(1/6 of Device Shown)
R
2
R
2
> > R
1
C
1
< C
2
R
1
1/6 HCU04A 1/6 HCU04A 1/6 HCU04A
V
out
1/6 HCU04A
C
R
2
R
1
C
1
V
out
C
2
Figure 4. Crystal Oscillator
Figure 5. Stable RC Oscillator
V
CC
R
2
INPUT
1M
1 M 1/6 HCU04A
1/6 HCU04A
R
2
> 6R
1
V
out
OUTPUT
V
in
R
1
1/6 HCU04A
Figure 6. Schmitt Trigger
Figure 7. High Input Impedance Single−Stage
Amplifier with a 2 to 6 V Supply Range
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