121.
The input transistor on a TTL circuit is unusual in that it has
A
multiple emitters.
B
multiple bases.
C
no collector
D
no base
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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.
The abbreviated designation for input current with a LOW input is
IOL.
VIH.
IIH.
IIL.
The abbreviated designation for input current with a HIGH input is
IOL.
VIH.
IIH.
IIL.
The 54XX TTL IC series is the military version and has
all of the above.
a wider temperature range.
more stringent power supply requirements.
higher current output capability.
One advantage that MOSFET transistors have over bipolar transistors is
low input impedance.
reduced propagation delay.
higher switching speed.
high input impedance.
In order to interface an FPGA with an external device, you must set the value of the
sink current.
external power supply.
source current.
all of the above
Fan-out for a typical TTL gate is
10
4
54
100
Each input on a TTL gate is connected to the transistors
base.
collector.
gate.
emitter.
An open-collector TTL gate
can sink current but cannot source current.
can source current but cannot sink current.
cannot source or sink current.
can sink more current than a standard TTL gate.
An open-collector TTL gate
must have an external pull-up resistor to produce a LOW.
must have an external pull-up resistor to produce a HIGH.
must have an external ground connected to the output to produce a LOW.
must have a transistor added to the output to produce a HIGH.