# Digital Logic - Sequential Circuits

1:   When the maximum clock rate is quoted for a logic family, then it applies to a
 A. shift register B. flip-lop C. counter D. Multiplexer Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
2:

The number of flip-flops required in a modulo N counter is

 A. log2 (N) + 1 B. log2(N-1) C. log2 (N) D. N log2 (N) Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Write your comments here:
3:

Flip-flop outputs are always

 A. Complimentary B. The same C. Independent of each other D. same as previous input Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here:
4:   How many gates (minimum) are needed for a 3-bit up-counter using standard binary and using T lip-lops ? Assume unlimited fan-in.
 A. 6 B. 3 C. 2 D. 1 Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Write your comments here:
5:   The clear data and present input of the JK lip-lop are known as
 A. Synchronous inputs B. Directed inputs C. Either (a) or (b) D. None of these Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Write your comments here:

## Suggest an improvement

Syllabus covered in this section is-

• Logic functions, Minimization,
• Design and synthesis of combinational and sequential circuits
• Number representation and computer arithmetic (fixed and floating point)
• Propositional (Boolean) Logic
• Satisfiability and Tautology
• Logic Families: TTL, ECL and C-MOS gates.
• Boolean algebra and Minimization of Boolean functions
• Flip-flops-types, race condition and comparison.
• Design of combinational and sequential Circuits
• Representation of Integers: Octal, Hex. Decimal and Binary.
•  2's complement and 1 's complement arithmetic
• Floating point representation.

This Section covers Digital Logic Questions Answers .

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