3
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NC7SZ33
2
AC Electrical Characteristics
Note 3: CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (ICCD) at no output
loading and operating at 50% duty cycle. (See Figure 2.) CPD is related to ICCD dynamic operating current by the expression:
ICCD = (CPD) (VCC) (fIN) + (ICCstatic).
AC Loading and Waveforms
CL includes load and stray capacitance.
Input PRR
= 1.0 MHz, t
w = 500 ns.
FIGURE 1. AC Test Circuit
Input
= AC Waveforms; t
r = tf = 1.8 ns;
PRR
= 10 MHz; Duty Cycle = 50%
FIGURE 2. ICCD Test Circuit
FIGURE 3. AC Waveforms
Symbol
Parameter
VCC
TA = +25°CTA = 40°C to +85°C
Units
Conditions
Figure
(V)
Min
Typ
Max
Min
Max
Number
tPLH,
Propagation Delay
1.8
± 0.15
2.0
6.5
18.5
2.0
19.0
ns
Figures
1, 3
tPHL
2.5
± 0.2
0.8
3.0
11.0
0.8
11.5
CL = 15 pF,
3.3
± 0.3
0.5
2.4
7.5
0.5
8.0
RL = 1M
5.0
± 0.5
0.5
1.9
5.5
0.5
6.0
tPLH,
Propagation Delay
3.3
± 0.3
1.5
3.0
8.5
1.5
9.0
ns
CL = 50 pF,
Figures
1, 3
tPHL
5.0
± 0.5
0.8
2.4
7.0
0.8
7.5
RL = 500
CIN
Input Capacitance
0
4
pF
CPD
Power Dissipation
3.3
20
pF
(Note 3)
Figure 2
Capacitance
5.0
26