Digital Logic - Sequential Circuits

6:   A mod-2 counter followed by a mod-5 counter is
 A. Same as a mode-5 counter followed by a mod- 2 counter B. A decade counter C. A mod-7 counter D. Ripple carry Counter Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here:
7:   What is the maximum counting speed of a 4-bit binary counter which is composed of flip-flops with a propagation delay of 25 ns ?
 A. 1 MHz B. 10 MHz C. 100 MHz D. 8 MHz Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
8:   A JK flip-lop has its J input connected to logic level 1 and its input to the Q output. A clock pulse is fed to its clock input. The flip-lop will now
 A. Change its state at each clock pulse B. Go to state 1 and stay there C. Go to state 0 and stay there D. Retain its previous state Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
9:   Consider an RS lip-lops with both inputs set to 0. If a momentary '1' is applied at the input S,then the output
 A. Q will flip from 0 to 1 and then back to 0 B. Q will flip from 0 to 1 and then back to 0 C. Q will flip from 1 to 0 D. Q will flip from 0 to 1 Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here: '>
10:   The output of a sequential circuit depends on
 A. Present inputs only B. Past outputs only C. Both present and past inputs D. Present outputs only Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Write your comments here:

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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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