1 (a)
Calculate (-6)

_{10}-(-2)_{10}using 2's complement method
5 M

1 (b)
What is difference between combinational circuit and sequential sircuit?

5 M

1 (c)
Explain in brief 'state table' and 'state graphs'

5 M

1 (d)
What are salient features of CMOS logic family?

5 M

2 (a)
Design a mod 6 ripple counter using T type flip-flop. Draw the circuit designed and output waeforms

12 M

2 (b)
What is FPGA? What are salient features?

8 M

3 (a)
Design a full adder using 2 half adders. Explain its working

10 M

3 (b)
Minimize y=Σm (1,5,7,9,11,13,15) and realise using universal gates

10 M

4 (a)
Minimize the following function using Quine McCluskey method:

f(A,B,C,D)=Πm(2,7,8,9,10,12)

f(A,B,C,D)=Πm(2,7,8,9,10,12)

12 M

4 (b)
Design a full adder using two 4:1 mux

8 M

5 (a)
Convert (0.42)

_{10}into binary
4 M

5 (b)
Solve 111110.1 ÷ 0101

4 M

5 (c)
Convert (11011)

_{2}into gray code
4 M

5 (d)
List various characteristics of digital IC

_{s}and explain their significance in brief.
8 M

6 (a)
Design a 4 bit universal shift register and explain its working

12 M

6 (b)
Implement the following boolean expression using 8:1 mux

\[f\left(A,B,C,D\right)=\bar{A}\ \bar{B}\bar{C}+ABC+\bar{B}CD+\bar{A}CD\]

\[f\left(A,B,C,D\right)=\bar{A}\ \bar{B}\bar{C}+ABC+\bar{B}CD+\bar{A}CD\]

8 M

7 (a)
Design a 3 bit up/down ripple counter.

10 M

7 (b)
What is half subtractor? Explain its working

10 M

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