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Digital Electronics - Logic Families and Their Characteristics

Exercise : Logic Families and Their Characteristics - General Questions
26.
Totem-pole outputs ________ be connected ________ because ________.
can, in parallel, sometimes higher current is required
cannot, together, if the outputs are in opposite states excessively high currents can damage one or both devices
should, in series, certain applications may require higher output voltage
can, together, together they can handle larger load currents and higher output voltages
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The high input impedance of MOSFETs:
allows faster switching
reduces input current and power dissipation
prevents dense packing
creates low-noise reactions
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The output current capability of a single 7400 NAND gate when HIGH is called ________.
source current
sink current
IOH
source current of IOH
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The time needed for an output to change from the result of an input change is known as:
noise immunity
fan-out
propagation delay
rise time
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The problem of interfacing IC logic families that have different supply voltages (VCC's) can be solved by using a:
level-shifter
tristate shifter
decoupling capacitor
pull-down resistor
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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