VLSI Design MCQ Questions and Answers for Practice

Q: What advantage does the 74LSXX series device have over standard TTL?

This question tests conceptual understanding. Review the topic carefully to determine the correct answer.

Q: What advantage does the 74LXX series device have over standard TTL?

This question tests conceptual understanding. Review the topic carefully to determine the correct answer.

Q: What advantage does the 74SXX series device have over standard TTL?

This question tests conceptual understanding. Review the topic carefully to determine the correct answer.

Q: When a CMOS gate output connects to a TTL gate, which circuit is needed?

This question tests conceptual understanding. Review the topic carefully to determine the correct answer.

Q: When a TTL gate output connects to a CMOS gate, what must be added to the circuit?

This question tests conceptual understanding. Review the topic carefully to determine the correct answer.

Practice VLSI Design Multiple Choice Questions (MCQs) to enhance your understanding and prepare for exams, interviews, and more. These questions are essential for anyone looking to master Very Large Scale Integration (VLSI) concepts.

About VLSI Design MCQ Questions

VLSI Design MCQs cover a wide range of topics, including digital design, semiconductor physics, and integrated circuit fabrication. These questions help you grasp the fundamental principles and advanced techniques used in designing complex electronic systems.

Why Practice VLSI Design Objective Questions?

Practicing VLSI Design MCQs is crucial for several reasons. It helps you prepare for academic exams, competitive tests, and job interviews. Regular practice reinforces your knowledge, improves problem-solving skills, and builds confidence. These questions are designed to test your understanding and ensure you can apply VLSI concepts effectively.

Who Should Use These MCQs?

Students preparing for school or college exams
Competitive exam aspirants
Candidates preparing for interviews

VLSI Design MCQ Questions for Practice

1. What advantage does the 74LSXX series device have over standard TTL?

higher propagation delay
reduced propagation delay
low power consumption
low power consumption and reduced propagation delay

2. What advantage does the 74LXX series device have over standard TTL?

lower voltage requirements
reduced propagation delay
higher propagation delay
low power consumption

3. What advantage does the 74SXX series device have over standard TTL?

higher propagation delay
lower voltage requirements
low power consumption
reduced propagation delay

4. When a CMOS gate output connects to a TTL gate, which circuit is needed?

a decoupling capacitor
a pull-up resistor
a pull-down resistor
a CMOS buffer

5. When a TTL gate output connects to a CMOS gate, what must be added to the circuit?

a decoupling capacitor
a pull-up resistor
a pull-down resistor
an open-collector gate

6. When interfacing CMOS to TTL what potential problem must be overcome?

There may be insufficient current.
The low output voltage may be insufficient.
The output current may be too great.
The high voltage may be too low.

7. When the outputs of several open-collector TTL gates are connected together, the gate outputs

produce more fan-out.
usually burn out.
are ANDed together.
produce more voltage.

8. When the outputs of several standard TTL gates are connected together, the gate outputs

enable new logic configurations.
produce more fan-out.
usually burn out.
produce more voltage.

9. Which alteration is made in the manufacture of a TTL gate to create an open-collector output?

The output transistors are replaced by diodes.
The input transistor is replaced by a diode.
The output transistors are missing.
The top output transistor is missing.

10. Which of the following are not characteristics of TTL logic gates?

Totem-pole output
Bipolar transistors
CMOS transistors
Multiemitter transistors

11. Which of the following input levels would not be a valid HIGH for a TTL gate?

2.4 V
2.1 V
1.8 V
All are valid.

12. Which of the following is a concern when using CMOS type devices?

mechanical shock
electrostatic discharge
fan out
under voltage

13. Which of the following is a special type of transistor used in the TTL series to improve speed characteristics?

Belrus
Shockley
Brattain
Schottky

14. When setting the voltage for an external device that must interface with an FPGA, you must change the value of

VCCIO
VDDIN
VDDiO
VCCIN

15. Which of the following digital IC logic families is most susceptible to static discharge?

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VLSI Design MCQ Questions and Answers for Practice

About VLSI Design MCQ Questions

Why Practice VLSI Design Objective Questions?

Who Should Use These MCQs?

VLSI Design MCQ Questions for Practice

1. What advantage does the 74LSXX series device have over standard TTL?

2. What advantage does the 74LXX series device have over standard TTL?

3. What advantage does the 74SXX series device have over standard TTL?

4. When a CMOS gate output connects to a TTL gate, which circuit is needed?

5. When a TTL gate output connects to a CMOS gate, what must be added to the circuit?

6. When interfacing CMOS to TTL what potential problem must be overcome?

7. When the outputs of several open-collector TTL gates are connected together, the gate outputs

8. When the outputs of several standard TTL gates are connected together, the gate outputs

9. Which alteration is made in the manufacture of a TTL gate to create an open-collector output?

10. Which of the following are not characteristics of TTL logic gates?

11. Which of the following input levels would not be a valid HIGH for a TTL gate?

12. Which of the following is a concern when using CMOS type devices?

13. Which of the following is a special type of transistor used in the TTL series to improve speed characteristics?

14. When setting the voltage for an external device that must interface with an FPGA, you must change the value of

15. Which of the following digital IC logic families is most susceptible to static discharge?

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