Datasheet

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NC7S14
DC Electrical Characteristics (Continued)
AC Electrical Characteristics
Note 3: 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 Waveforms;
PRR = variable; Duty Cycle = 50%
FIGURE 2. I
CCD
Test Circuit
FIGURE 3. AC Waveforms
Symbol Parameter
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Units Conditions
(V) MinTypMaxMinMax
I
IN
Input Leakage Current 6.0 ±0.1 ±1.0 µAV
IN
= V
CC
, GND
I
CC
Quiescent Supply Current 6.0 1.0 10.0 µAV
IN
= V
CC
, GND
Symbol Parameter
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Units Conditions
Figure
(V) Min Typ Max Min Max Number
t
PLH
Propagation Delay 5.0 4.5 21 ns C
L
= 15 pF
Figures
1, 3
t
PHL
2.0 20 100 125
ns
C
L
= 50 pF
3.0 12 27 35
4.5 8.5 20 25
6.0 7.5 17 21
t
TLH
Output Transition Time 5.0 3 8 ns C
L
= 15 pF
Figures
1, 3
t
THL
2.0 25 125 145
ns
C
L
= 50 pF
3.0 16 35 45
4.5 11 25 30
6.0 9 21 24
C
IN
Input Capacitance Open 2 10 10 pF
C
PD
Power Dissipation Capacitance 5.0 7 pF (Note 3) Figure 2