Datasheet

©2000 Fairchild Semiconductor Corporation www.fairchildsemi.com
NC7WZ00 Rev. 1.11.0 5
NC7WZ00 — TinyLogic
®
UHS Dual 2-Input NAND 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 = 1.0 MHz; 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 5.3 9.6 2.0 9.8 ns Figure 1
Figure 3
2.5 ± 0.2 1.2 3.2 5.3 1.2 5.7
3.3 ± 0.3 0.8 2.4 3.7 0.8 4.0
5.0 ± 0.5 0.5 1.9 2.9 0.5 3.2
t
PLH,
t
PHL
Propagation Delay 3.3 ± 0.3 C
L
= 50pF,
R
L
= 500Ω
1.2 3.0 4.6 1.2 4.9 ns Figure 1
Figure 3
5.0 ± 0.5 0.8 2.4 3.6 0.8 3.9
C
IN
Input Capacitance 0 2.5 pF
C
PD
Power Dissipation
Capacitance
3.3
(2)
13 pF Figure 2
5.0 17