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GATE CS 2021 : Digital Logic 7 (App update required to attempt this test)

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Question 1

The minimum number of JK flip-flops required to construct a synchronous counter with the count sequence (0,0,1,1,2,2,3,3,0,0,…) is__________.

Question 2

Consider the following figure

Initially all the counters are cleared and Y = Output Y = 1 when inputs a2 a1 a0 and b2 b1 b0 are equal. How many clock pulses are needed to get output Y = 1 again __________.

Question 3

Consider the following synchronous counter made up of JK, D and T flip-flops.

Find the modulus value of the counter.

Question 4

A new type of synchronous flip-flop has the following characteristic table.

Choose the correct corresponding excitation table entry for Q(t) =0 and Q(t+1)= 1. Here * denotes don’t care.

Question 5

Given a sequential circuit:

If initial state Q1 Q2 Q3 = 1 0 1 after how many cycles it gets to same value

Question 6

Which of the following correctly defines Race Around Condition?
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Priya UpadhyayPriya UpadhyayMember since Sep 2020
Priya Upadhyay
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