1. Choose the correct answer for the following:

Convert the following binary number to decimal

01011

11

35

15

10

How many bits are in an ASCII character?

16

8

7

4

What is the major advantage of ECL logic?

Very high speed

Wide range ofoperating voltage

Very low cost

Very high power

How is a J-K flip-flop made to toggle?

J

K 0

K 1



How many inputs are required for a 1-of-16 decoder?

2

4

8

16

The output of an AND gate with three inputs, B and is HIGH when

A B C 0

A C 0

A B C 1

A B C 1

A binary code that progresses such that only one bit changes between two successive codes is

Nine's-complement code

8421 code

Excess-3 code

Gray code

2. Design a Binary to Gray code converter.

Implement EXOR gate using only NAND gates.

What do you mean by self-complementing code?

3. With the help of a diagram, explain the operation of TTL NAND gate with totem pole output.

4. Given 10, 14, 15). Draw the K-map and obtain the simplified expression. Realize the minimum expression using basic gates.

5. Convert a J-K flip-flop into a D flip-flop and a T flip-flop.

6. Draw the logic diagram of a 3-bit Serial In Serial Out (SISO) shift register and explain its working.

7. Write short notes on any two of the following:

Realization of NMOS inverter

Applications of Multiplexer, Demultiplexer and Flip-flops

Ring Counter