1
GATE CSE 1996
Subjective
+5
-0
Consider the synchronous sequential circuit in fig. GATE CSE 1996 Digital Logic - Sequential Circuits Question 8 English 1

(a) Draw a state diagram which is implemented by the circuit. Use the following names for the states corresponding to the values of flip-flops as given below.

GATE CSE 1996 Digital Logic - Sequential Circuits Question 8 English 2

(b) Given that the initial state of the circuit is $${S_4},$$ identify the set of states which are not reachable.

2
GATE CSE 1990
MCQ (Single Correct Answer)
+5
-1.5
For the synchronous counter shown in fig. write the truth table of $${Q_0},\,\,{Q_1}$$ and $${Q_2}$$ after each pulse starting from $${Q_0} = {Q_1} = {Q_2} = 0$$ and determine the counting sequenced also the modulus of the counter GATE CSE 1990 Digital Logic - Sequential Circuits Question 9 English

What is the modules of the counter with initial state $${Q_2}\,{Q_1}\,{Q_0} = 000$$

A
$$3$$
B
$$4$$
C
$$5$$
D
$$6$$
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