21.
The minimum input voltage recognized as a HIGH by a TTL gate is
A
0.8 V.
B
2.4 V.
C
2.0 V.
D
5.0 V.
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The minimum input voltage recognized as a HIGH by a TTL gate is
0.8 V.
2.4 V.
2.0 V.
5.0 V.
The maximum output voltage recognized as a LOW by a TTL gate is
2.0 V.
0.8 V.
2.4 V.
0.4 V. 3
The maximum input voltage recognized as a LOW by a TTL gate is
2.4 V.
0.8 V.
0.0 V.
0.4 V.
The maximum current for a LOW output on a standard TTL gate is
16 µA.
40 mA.
100 µA.
16 mA.
The maximum current for a HIGH output on a standard TTL gate is
-10 µA.
-400 µA.
-1 µA.
-10 mA.
The major advantage of TTL logic circuits over CMOS is
lower propagation delay.
the ability to output higher voltages.
more modern design.
very low power consumption.
The major advantage of CMOS logic circuits over TTL is
very low power consumption.
the ability to produce several output voltage levels.
lower propagation delay.
much higher propagation delay.
The lower transistor of a totem-pole output is saturated when the gate output is
HIGH.
LOW.
malfunctioning.
over driven.
The lower transistor of a totem-pole output is OFF when the gate output is
HIGH.
malfunctioning.
LOW.
over driven.
The input transistor on a TTL circuit is unusual in that it has
multiple emitters.
multiple bases.
no collector
no base
The input transistor (Q 1) of a TTL gate acts like
an OR gate.
a NAND gate.
a NOR gate.
an AND gate.
The difference between VOH and VIH voltages is known as
input level.
input margin.
noise margin.
output differential.
The CMOS series that is pin compatible with the TTL family is the
7400 series.
74C00 series.
4000 series.
5400 series.
The abbreviation TTL means
transistor-transistor logic.
transistor-transceiver latch.
three-transistor logic.
two-transistor logic.
The abbreviated designator for a LOW output voltage is
VIH.
VOH.
VIL.
VOL.
The abbreviated designator for a LOW input voltage is
VIH.
VIL.
VOH.
VOL.
The abbreviated designator for a HIGH output voltage is
VOL.
VIL.
VOH.
VIH.
The abbreviated designator for a HIGH input voltage is
VOL.
VOH.
VIH.
VIL.
The abbreviated designation for output current with a LOW output is
IIH.
OOL.
IOL.
IOH.
The abbreviated designation for output current with a HIGH output is
IOL.
IOH.
IIL.
IIH.