CuriousTab
Search
CuriousTab
Home
Aptitude
Computer
C Programming
C# Programming
C++ Programming
Database
Java Programming
Networking
Engineering
Biochemical Engineering
Biochemistry
Biotechnology
Chemical Engineering
Civil Engineering
Computer Science
Digital Electronics
Electrical Engineering
Electronics
Electronics and Communication Engineering
Mechanical Engineering
Microbiology
Technical Drawing
GK
Current Affairs
General Knowledge
Reasoning
Data Interpretation
Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning
Exams
AIEEE
Bank Exams
CAT
GATE
IIT JEE
TOEFL
Jobs
Analyst
Bank PO
Database Administrator
IT Trainer
Network Engineer
Project Manager
Software Architect
Discussion
Home
‣
Digital Electronics
‣
Logic Families and Their Characteristics
Comments
Question
Special handling precautions should be taken when working with MOS devices. Which of the following statements is not one of these precautions?
Options
A. All test equipment should be grounded.
B. MOS devices should have their leads shorted together for shipment and storage.
C. Never remove or insert MOS devices with the power on.
D. Workers handling MOS devices should not have grounding straps attached to their wrists.
Correct Answer
Workers handling MOS devices should not have grounding straps attached to their wrists.
Logic Families and Their Characteristics problems
Search Results
1. What is the difference between the 54XX and 74XX series of TTL logic gates?
Options
A. 54XX is faster.
B. 54XX is slower.
C. 54XX has a wider power supply and expanded temperature range.
D. 54XX has a narrower power supply and contracted temperature range.
Show Answer
Scratch Pad
Discuss
Correct Answer: 54XX has a wider power supply and expanded temperature range.
2. The high input impedance of MOSFETs:
Options
A. allows faster switching
B. reduces input current and power dissipation
C. prevents dense packing
D. creates low-noise reactions
Show Answer
Scratch Pad
Discuss
Correct Answer: reduces input current and power dissipation
3. How does the 4000 series of CMOS logic compare in terms of speed and power dissipation to the standard family of TTL logic?
Options
A. more power dissipation and slower speed
B. more power dissipation and faster speed
C. less power dissipation and faster speed
D. less power dissipation and slower speed
Show Answer
Scratch Pad
Discuss
Correct Answer: less power dissipation and slower speed
4. How can ECL have both a NOR and an OR output?
Options
A. ECL does not have this feature.
B. They are simply the inverse of each other.
Show Answer
Scratch Pad
Discuss
Correct Answer: They are simply the inverse of each other.
5. What is the advantage of using low-power Schottky (LS) over standard TTL logic?
Options
A. more power dissipation
B. less power dissipation
C. cost is less
D. cost is more
Show Answer
Scratch Pad
Discuss
Correct Answer: less power dissipation
6. Can a 74HCMOS logic gate directly connect to a 74ALSTTL gate?
Options
A. Yes
B. No
Show Answer
Scratch Pad
Discuss
Correct Answer: Yes
7. How is the speed?power product of a logic family determined?
Options
A. The propagation delay in µs is multiplied by the power dissipation in mW.
B. The propagation delay in ms is multiplied by the power dissipation in µW.
C. The propagation delay in ns is multiplied by the power dissipation in mW.
D. The propagation delay in ns is multiplied by the power dissipation in µW.
Show Answer
Scratch Pad
Discuss
Correct Answer: The propagation delay in ns is multiplied by the power dissipation in mW.
8. As a general rule, the lower the value of the speed?power product, the better the device because of its:
Options
A. long propagation delay and high power consumption
B. long propagation delay and low power consumption
Show Answer
Scratch Pad
Discuss
Correct Answer: long propagation delay and low power consumption
9. Which logic family is characterized by a multiemitter transistor on the input?
Options
A. ECL
B. CMOS
C. TTL
D. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: TTL
10. From the following specifications determine the fan-out for the logic family.
Options
A. HIGH state is 16, LOW state is 8
B. HIGH state is 8, LOW state is 16
C. HIGH state is 4, LOW state is 8
D. HIGH state is 8, LOW state is 4
Show Answer
Scratch Pad
Discuss
Correct Answer: HIGH state is 8, LOW state is 16
Comments
There are no comments.
Enter a new Comment
Save
More in Digital Electronics:
Boolean Algebra and Logic Simplification
Code Converters and Multiplexers
Combinational Logic Analysis
Combinational Logic Circuits
Computers
Counters
Describing Logic Circuits
Digital Arithmetic Operations and Circuits
Digital Concepts
Digital Design
Digital Signal Processing
Digital System Projects Using HDL
Ex-OR and Ex-NOR Gates
Flip-Flops
Integrated-Circuit Logic Families
Integrated Circuit Technologies
Interfacing to the Analog World
Logic Families and Their Characteristics
Logic Gates
Memory and Storage
Microprocessor Fundamentals
MSI Logic Circuits
Multivibrators and 555 Timer
Number Systems and Codes
Programmable Logic Device
Shift Registers
Signals and Switches
The 8051 Microcontroller