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Digital Electronics
Sequential Circuits
State Machine

Questions mapped to State Machine under Sequential Circuits.

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Q#1 Sequential Circuits GATE EE 2020 (Set 1) MCQ +1 mark -0.33 marks

A sequence detector is designed to detect precisely 3 digital inputs, with overlapping sequences detectable. For the sequence (1,0,1) and input data (1,1,0,1,0,0,1,1,0,1,0,1,1,0), what is the output of this detector?

1,1,0,0,0,0,1,1,0,1,0,0

0,1,0,0,0,0,0,1,0,1,0,0

0,1,0,0,0,0,0,1,0,1,1,0

0,1,0,0,0,0,0,0,1,0,0,0

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Q#2 Sequential Circuits GATE EE 2017 (Set 2) NAT +2 marks -0 marks

For the synchronous sequential circuit shown below, the output Z is zero for the initial conditions

The minimum number of clock cycles after which the output Z would again become zero is ___________.

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Q#3 Sequential Circuits GATE EE 2015 (Set 2) MCQ +2 marks -0.66 marks

In the following sequential circuit, the initial state (before the first clock pulse) of the circuit is . The state , immediately after the 333rd clock pulse is

00

01

10

11

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Q#4 Sequential Circuits GATE EE 2012 (Set 1) MCQ +2 marks -0.66 marks

The state transition diagram for the logic circuit shown is

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Q#5 Sequential Circuits GATE EE 2005 (Set 1) MCQ +1 mark -0.33 marks

The digital circuit shown in figure works as a

JK flip-flop

Clocked RS flip-flop

T flip-flop

Ring counter

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