NC7S04
AC Electrical Characteristics
Symbol
t
PLH
,
t
PHL
Parameter
Propagation Delay
V
CC
(V)
5.0
2.0
3.0
4.5
6.0
t
TLH
,
t
THL
Output Transition Time
5.0
2.0
3.0
4.5
6.0
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
Open
5.0
Min
T
A
= +25°C
Typ
3
18
10
7
6
3
25
16
11
9
2
6
Max
15
100
27
20
17
10
125
35
25
21
10
155
45
31
26
10
pF
pF
(Note 3)
Figure 2
ns
C
L
=
50 pF
Figures
1, 3
125
35
25
21
ns
C
L
=
15 pF
ns
C
L
=
50 pF
Figures
1, 3
T
A
= −40°C
to
+85°C
Min
Max
Units
ns
Conditions
C
L
=
15 pF
Fig. No.
Note 3:
C
PD
is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I
CCD
) at no output
loading and operating at 50% duty cycle. (See Figure 2.) C
PD
is related to I
CCD
dynamic operating current by the expression:
I
CCD
=
(C
PD
) (V
CC
) (f
IN
)
+
(I
CC
static).
AC Loading and Waveforms
C
L
includes load and stray capacitance
Input PRR
=
1.0 MHz, t
w
=
500 ns
FIGURE 1. AC Test Circuit
FIGURE 3. AC Waveforms
Input
=
AC Waveforms;
PRR
=
Variable; Duty Cycle
=
50%
FIGURE 2. I
CCD
Test Circuit
3
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