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# Assignment No. 04 Digital Logic Design – CS302

Objectives:

Instructions:

It should be clear that your assignment will not get any credit if:

• The assignment is submitted after due date.
• The assignment is submitted via email.
• The assignment is copied from Internet or from any other student.
• The submitted assignment does not open or file is corrupt.
• It is in some format other than .doc/docx.

Note: All types of plagiarism are strictly prohibited.

For any query about the assignment, contact at CS302@vu.edu.pk

Important!

You have to provide all the steps of processing in all questions otherwise, marks will be deducted. Pictures of hand written/drawn diagram will also be marked as ZERO.

Question No. 01                                                                                                                         Marks 15

A Mealy machine is a finite state machine whose output values are determined both by its current state and its current input. The next state is determined by considering input and noting the subsequent output accordingly.

 0/0

Given the state diagram below generate the state table and design a sequential circuit using D flip flops.

Question No. 02                                                                                                                         Marks 5

Derive the  state diagram of the 3 bit sequential circuit having X as input with the following conditions in mind:

• When X=0, it counts one by one.
• When X=1, it counts two by two.

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### Replies to This Discussion

han right wohi 3 bit sequential circuit up/down counter

dersxa difference b/w counters and state diagram.... :)

and jo second condition hai uski kuch smj ai ???

Q1 ki 3 terms bnain gi :

D1=Qb(X')+(Qb')X

D2=Qa'(X')+(Qa)X

y=QaQbx'

Question No.2 kese karna hay ??????

just state diag draw karni .. dono cndition k liye seprtly draw kr lain

itny hoshyar hoty to laptop mill jani abhi tak :p

assignment ni bni ?? :'(

ban gaii

Plzzz share it if u hv done

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