Datasheet

©2000 Fairchild Semiconductor Corporation www.fairchildsemi.com
NC7WZ08 Rev. 1.11.0 5
NC7WZ08 — TinyLogic
®
UHS Dual 2-Input AND Gate
AC Electrical Characteristics
Note:
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: I
CCD
= (C
PD
) (V
CC
) (f
IN
) + (I
CC
static)
AC Loading and Waveforms
C
L
includes load and stray capacitance
Input PRR = 1.0MHz, t
w
= 500ns
Figure 1. AC Test Circuit
Input = Ac Waveform; t
r
= t
f
= 1.8ns;
PRR = 10 MHz; Duty Cycle = 50%
Figure 2. I
CCD
Test Circuit
Figure 3. AC Waveforms
Symbol Parameter V
CC
(V) Conditions
T
A
= +25°C
T
A
= –40°C
to +85°C
Units
Figure
NumberMin Typ Max Min Max
t
PLH
, t
PHL
Propagation Delay 1.8 ± 0.15 C
L
= 15pF,
R
L
= 1MΩ
2.0 5.7 10.5 2.0 11.0 ns Figure 1
Figure 3
2.5 ± 0.2 1.0 3.5 5.8 1.0 6.2
3.3 ± 0.3 0.8 2.6 3.9 0.8 4.3
5.0 ± 0.5 0.5 1.9 3.1 0.5 3.3
t
PLH
, t
PHL
Propagation Delay 3.3 ± 0.3 C
L
= 50pF,
R
L
= 500Ω
1.2 3.2 4.8 1.2 5.2 ns Figure 1
Figure 3
5.0 ± 0.5 0.8 2.5 3.7 0.8 4.0
C
IN
Input Capacitance 0 2.5 pF
C
PD
Power Dissipation
Capacitance
3.3
(2)
14.5 pF Figure 2
5.0 19.5