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Digital Electronics - Integrated-Circuit Logic Families

Exercise : Integrated-Circuit Logic Families - General Questions
16.
A "floating" TTL input may be defined as:
unused input that is tied to Vcc through a 1 k resistor.
unused input that is tied to used inputs.
unused input that is tied to the ground.
unused input that is not connected.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Which of the logic families listed below allows the highest operating frequency?
74AS
ECL
HCMOS
54S
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.

Refer to the given figure. What type of output arrangement is being used for the output?

Complementary-symmetry
Push-pull
Quasi push-pull
Totem-pole
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.

Refer the given figure. Which of the following describes the operation of the circuit?

A LOW input turns Q1 and Q3 on; Q2 and Q4 are off.
A LOW input turns Q1 and Q4 off; Q2 and Q3 are on.
A HIGH input turns Q1, Q2, and Q3 off, and Q4 is on.
A HIGH input turns Q1, Q2, and Q4 on; Q3 is off.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.

What type of logic circuit is shown below and what logic function is being performed?

It is an NMOS AND gate.
It is a CMOS AND gate.
It is a CMOS NOR gate.
It is a PMOS NAND gate.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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