Data Sheet

5 www.fairchildsemi.com
NC7WZ02 TinyLogic
®
UHS Dual 2-Input NOR Gate
NC7WZ02 Rev. 1.0.0
AC Electrical Characteristics
Notes:
2. 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:
C
PD
= I
CCD
/ (V
CC
) (F).
AC Loading and Waveforms
Symbol Parameter Conditions
V
CC
(V)
T
A
=
Units
Figure
Number
+25˚C –40°C to +85°C
Min Typ Max Min Max
t
PLH
, t
PHL
Propagation Delay R
L
= 1MΩ,
C
L
= 15pF
1.8 ± 0.15 2.0 5.4 9.8 2.0 10 ns Figure 1
Figure 3
2.5 ± 0.2 1.2 3.3 5.4 1.2 5.8
3.3 ± 0.3 0.8 2.5 3.8 0.8 4.1
5.0 ± 0.5 0.5 2.0 3.0 0.5 3.3
t
PLH
, t
PHL
Propagation Delay R
L
= 500Ω,
C
L
= 50pF
3.3 ± 0.3 1.2 3.1 4.6 1.2 5.0 ns Figure 1
Figure 3
5.0 ± 0.5 0.8 2.4 3.7 0.8 4.0
C
IN
Input Capacitance 0 2.5 pF
C
PD
Power Dissipation
Capacitance
Note 2 3.3 13.5 pF Figure 2
5.0 17.5
t
RISE
= 3ns
Input
Output
t
PHL
Input
Output
Figure 3. AC Waveforms
Figure 1. AC Test Circuit
Figure 2. I
CCD
Test Circuit
t
FALL
= 3ns
V
OH
90%
50% 50%
90%
10% 10%
50% 50%
t
PLH
V
OL
V
CC
V
CC
GND
R
L
C
L
*
Input
V
CC
*C
L
includes load and stray capacitance.
Input PRR = 1.0MHz; t
W
= 500ns
Input = AC Waveform; t
r
, t
f
= 1.8ns;
PRR = 10MHz; Duty Cycle = 50%
A