Adder, Subtructer, Encoder, Decoder, Multiplexer, Demultiplexer

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Presentation transcript:

Adder, Subtructer, Encoder, Decoder, Multiplexer, Demultiplexer Al-MamoonUniversity College Computer Science Department Second Year Architecture and Logic Gates Logic Gates Adder, Subtructer, Encoder, Decoder, Multiplexer, Demultiplexer By Dr.Mazin Alzewary 2017-2018

Basic Logic Gates 1

Binary Decoder Binary decoder is combinational logic circuit that use to decode the information from coded form into original form (example convert binary information into decimal form)

Binary Encoder Binary encoder is combinational logic circuit that use to encode the information into coded form (example convert decimal information into binary form) BCD to Binary Encoder

Questions Q1) A 4 X1 multiplexer can be created by using a 2X4 decoder and minimum of five tri-state gates Q2) Both encoder and multiplexer have 2 input lines and n output lines (for any n) Q3)

Q5) Using a 3-to-8 decoder, design a logic circuit to realize the following Boolean function F(A,B,C) = Σm(2, 3, 5, 6, 7) Q6) Using two 2-to-4 decoders, design a logic circuit to realize the following Boolean function F(A,B,C) = Σm(0, 1, 4, 6, 7) Q7) Design a 16-to-1 multiplexer using 4-to-1 multiplexers only.

Q8)