STUPIDSID
1(a)
Perform 492(10) - 275(10) in BCD using 10's complement
5 M
1(b)(i)
Simplify: (B+BC)(B+BC)(B+D)
2 M
1(b)(ii)
Simplify ? m (0, 1,2,3,5,7, 8, 9, 10, 12, 13) using K-map
2 M
1(c)
Implement the following using decoder
f1 (A,B,C) = ? m(0,4,7) + d(2,3)
f2 (A,B,C) = ? m(1,5,6)
f3 (A,B,C) = ? m(0,2,4,6)
f1 (A,B,C) = ? m(0,4,7) + d(2,3)
f2 (A,B,C) = ? m(1,5,6)
f3 (A,B,C) = ? m(0,2,4,6)
3 M
1(d)(i)
Write the truth table and excitation table of JK flip flop.
4 M
1(d)(ii)
Briefly explain CAD tools for Digital Design.
4 M
2(a)
Minimize ? m(0,1,2,8,9,15,17,21,24,25,27,31) using Quine-McCluskey method. Also find most essential prime implicants.
10 M
2(b)
Prove that NAND and NOR are universal gates.
10 M
3(a)
Design a BCD adder.
10 M
3(b)
Implement Full adder using 8:1 MUX
10 M
4(a)
Design MOD 12 synchronous counter using JK flip flop.
10 M
4(b)
Convert: -
SR to D F/F
JK to T F/F
SR to D F/F
JK to T F/F
10 M
5(a)
Given the logic expression AB + AC + C + AD + ABC + ABC
(i) Express in standard SOP form
(ii) Minimize using K-map and realise using only NAND gates.
(i) Express in standard SOP form
(ii) Minimize using K-map and realise using only NAND gates.
12 M
5(b)
Implement following using only one 8:1 MUX and few gates.
F=?m(0,1,3,4,5,7,9,10,12,13,15)
F=?m(0,1,3,4,5,7,9,10,12,13,15)
8 M
6(a)
Design 4-bit asynchronous up/down counter.
10 M
6(b)
Explain 4-bit bidirectional shift register. What are the uses of register?
10 M
Write short notes on any two of the following:-
7(a)
ALU
10 M
7(b)
Priority Encoder
10 M
7(c)
PAL and PLA
10 M
7(d)
VHDL features
10 M
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