Datasheet

©1995 Fairchild Semiconductor Corporation www.fairchildsemi.com
NC7S08 Rev. 1.9.0 5
NC7S08 — TinyLogic
®
HS 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 = 1.0 MHz; t
W
= 500 ns
Figure 1. AC Test Circuit
Input = AC Waveform;
PRR = variable; 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 5.0 C
L
= 15pF 3.5 15 ns Figure 1
Figure 3
2.0 C
L
= 50pF 20 100 125
3.0 11 27 35
4.5 8 20 25
6.0 7 17 21
t
TLH
, t
THL
Output Transition
Time
5.0 C
L
= 15pF 3.0 10 ns Figure 1
Figure 3
2.0 C
L
= 50pF 25 125 155
3.0 16 35 45
4.5 11 25 31
6.0 9 21 26
C
IN
Input Capacitance Open 2 10 10 pF
C
PD
Power Dissipation
Capacitance
5.0
(2)
6pFFigure 2