viva vlsi lab cycle 1

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1. Design a Full Adder using 8:1 MUX. 2. What is a half adder? 3. What is a full adder? 4. What are the applicatins f adders? !. What is a half su"tractr? #. What is a full su"tractr? $. What are the applicatins f su"tractrs? 8. %"tain the &ini&al e'pressin fr a"(e circuits. ). *eali+e a full adder using t, half adders )- *eali+e a full su"tractrs using t, half su"tractrs. 1 .What is a ripple Adder? What are its disad(antages? 11.What is a &ultiple'er? 12. What is a de/&ultiple'er? 13. What are the applicatins f &ultiple'er and de/&ultiple'er? 14. Deri(e the 0lean e'pressin fr &ultiple'er and de/&ultiple'er. 1!. , d u reali+e a gi(en functin using &ultiple'er 1#. What is the di erence "et,een &ultiple'er de&ultiple'er? 1$. 5n 2n t 1 &ultiple'er h, &an selectin lines are there? 18.6nstruct 1#:1 MUX using 8:1 MUX. 1).What are the applicatins f decder? 2 . What is the di erence "et,een decder encder? 21. Fr n/ 2n decder h, &an i7p lines h, &an 7p lines? 22.What is a pririt encder? 23. What is the rle f an encder in c&&unicatin? 24.What is the di erence "et,een Flip/Flp latch? 2!.What are the applicatins f di erent Flip/Flps? 2#.What is the relatin "et,een prpagatin dela clc fre9uenc f ip/ p? 2$.What is race arund in ip/ p h, t (er c&e it? 28.6n(ert the ; < Flip/Flp int D ip/ p and = ip/ p? 2).What is the di erence "et,een the >e9uential the c&"inatinal gic circuit? 3 .What ad(antage des a ;/< Flip/ p ha(e (er an >/*? 31.Design a full adder using &ultiple'er 32.5&ple&ent the functin F @A 0 6- BC& @ 1 3 4- using &ultiple'er 33.

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1. Design a Full Adder using 8:1 MUX.2. What is a half adder?

3. What is a full adder?

4. What are the applications of adders?

5. What is a half subtractor?

6. What is a full subtractor?

7. What are the applications of subtractors? 8. Obtain the minimal expression for above circuits.

9. Realize a full adder using two half adders 9) Realize a full subtractors using two half subtractors.10. What is a ripple Adder? What are its disadvantages?

11. What is a multiplexer?

12. What is a de-multiplexer?

13. What are the applications of multiplexer and de-multiplexer?

14. Derive the Boolean expression for multiplexer and de-multiplexer.

15. How do you realize a given function using multiplexer

16. What is the difference between multiplexer & demultiplexer?

17. In 2n to 1 multiplexer how many selection lines are there?

18. Construct 16:1 MUX using 8:1 MUX.

19. What are the applications of decoder?

20. What is the difference between decoder & encoder?

21. For n- 2n decoder how many i/p lines & how many o/p lines?

22. What is a priority encoder?

23. What is the role of an encoder in communication?

24. What is the difference between Flip-Flop & latch?

25. What are the applications of different Flip-Flops?

26. What is the relation between propagation delay & clock frequency of flip-flop?

27. What is race around in flip-flop & how to over come it?

28. Convert the J K Flip-Flop into D flip-flop and T flip-flop?

29. What is the difference between the Sequential & the combinational Logic circuit?

30. What advantage does a J-K Flip-flop have over an S-R?31. Design a full adder using multiplexer

32. Implement the function F (A, B, C) =m (0, 1, 3, 4) using multiplexer