Datasheet

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NC7WZ32
AC Electrical Characteristics
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
Input = AC Waveforms; t
r
= t
f
= 1.8 ns;
PRR = 10 MHz; Duty Cycle = 50%
FIGURE 2. I
CCD
Test Circuit
FIGURE 3. AC Waveforms
Symbol Parameter
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Units Conditions
Figure
(V) Min Typ Max Min Max Number
t
PLH
, Propagation Delay 1.8 ± 0.15 2.0 5.8 10.5 2.0 11.0
ns
t
PHL
2.5 ± 0.2 1.0 3.5 5.8 1.0 6.2 C
L
= 15 pF,
Figures
1, 3
3.3 ± 0.3 0.8 2.6 3.9 0.8 4.3 R
L
= 1MΩ
5.0 ± 0.5 0.5 1.8 3.1 0.5 3.3
t
PLH
, Propagation Delay 3.3 ± 0.3 1.2 3.2 4.8 1.2 5.2
ns
C
L
= 50 pF,
Figures
1, 3
t
PHL
5.0 ± 0.5 0.8 2.4 3.7 0.8 4.0 R
L
= 500Ω
C
IN
Input Capacitance 0 2.5 pF
C
PD
Power Dissipation 3.3 14
pF (Note 3) Figure 2
Capacitance 5.0 18