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State the relative merits of series and parallel counters. How synchronous counters differ from asynchronous counters? Develop the state diagram and primitive flow table for a logic system that has 2 inputs,x.

How will you complement of the counters of the. Raja November 19, at 5: What is the pulse mode operation of asynchronous sequential logic circuits not very. What is code converter? Write the HDL description of the circuit specified by the following Boolean function. Obtain syllabs primitive flow table for an asynchronous circuit that has two inputs x,y and one.


Otherwise the output is zero. What digltal you mean by comparator? Encode the ten decimal digits in the 2 out of 5 code. What is the minimum number of hexadecimal digits that the counter must have?

Draw the logic diagram of8 to 1 line multiplexer.

Distinguish between positive logic and negative logic. A shift register comprises of JK flip-flops. Summarize the design procedure for asynchronous sequential circuit. Derive the characteristic equation of a T flip flop.

EC Digital Electronics Important Questions | Syllabus | 2 Marks with answers | JPR Notes

Draw the logic diagram of the digital circuit specified by. Using a single IC ; draw the logic diagram of a 4 bit comparator. What are the applications of a shift register? How many flip —flops are needed to build an 8 bit shift register? Wherever Y is 1, input X is transferred to Z. How to find the location of parity bits in the Hamming code? What is meant by race condition in digital circuit?

Give short notes on simulation versus synthesis. Give short notes on Logic simulation and Logic synthesis. Give the HDL dataflow description for T flip – flop. Distinguish between synchronous and asynchronous sequential logic circuits.


Derive the characteristic equation of a JK flip flop. Find the syntax errors in the following declarations note that names for primitive gates. No other inputs will. Discuss on Hazards and races. List the basic types of shift registers in terms of data movement.

EC2203 Digital Electronics Important Questions | Syllabus | 2 Marks with answers

Give the classification of memory. Describe how to detect and eliminate hazards from an asynchronous network? Write a short notes on memory decoding. The output is 0 otherwise. eleectronics

State and prove Consensus theorem. How will you build a full adder using 2 half adders and an OR gate? Find the decimal equivalent of 9. Generate the even parity Hamming codes for the following binary data.