Given A=46 and B=35 represent them in binary and perform A-B using 1's complement method. [5]
Combinational Logic
1.
Explain design procedure of combinational circuits. Design a combinational circuit with three inputs x, y, and z, and three outputs, A, B, and C. When the binary input is 0, 1, 2, or 3, the binary output is one greater than the input. When the binary input is 4, 5, 6, or 7, the binary output is one less than the input. [10]
Combinational Logic with MSI and LSI
1.
What is Multiplexer. Design 8 to 1 Multiplexer with low level Multiplexers. [5]
2.
What is decoder? Describe the 3 to 8 line decoder circuit. [5]
Registers and Counters
1.
Differentiate between synchronous and asynchronous counter. Design a 3-bit synchronous binary counter using T Flip Flop. Draw its timing diagram. [10]
2.
Write about D flip flop with necessary circuit, block diagram, characteristic table and equation. [5]
3.
Mention different types of shift registers. Explain SIPO with timing diagram. [5]
4.
Design a 2 bit asynchronous binary counter using T Flip Flop. Draw its timing diagram. [5]
Simplification of Boolean Functions
1.
Explain De-Morgan's Law. Simplify the Boolean function using K-Map in both SOP and POS form.
$F(P,Q,R,S) = \prod(0,1,4,5,11,14,15)$
$d(P,Q,R,S) = \sum(2,3,7,8,9,13)$
[10]
2.
Simplify $ F(A,B,C,D) = \sum(1,3,4,6,9,11,12,14)$ and realize the equation using NOR gates only. [5]
Synchronous and Asynchronous Sequential Logic
1.
Explain state diagram, state table, state reduction and state assignment with suitable example. [5]