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Multiplexers and Demultiplexers. 2/1 mux Block Diagram. Truth Table. Design of a 2/1 Mux. D 0. O. D 1. S. Design of 2/1 Mux Continued. K-Map. SA. 01. 11. 10. 00. B. 0. 1. 1. 1. 1. 1. O = S’A + SB. 4/1 Mux. Circuit. Uses of Multiplexers.
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2/1 mux Block Diagram Truth Table Design of a 2/1 Mux D0 O D1 S
Design of 2/1 Mux Continued • K-Map SA 01 11 10 00 B 0 1 1 1 1 1 O = S’A + SB
4/1 Mux • Circuit
Uses of Multiplexers • Used in data communications for several computers to communicate over 1 line • Used in radio to select one channel from many • Used to route data within a computer • Used for function generation
Given the following truth table use an 8/1 Mux to generate F Block Diagram Function Generation using Multiplexers 0 0 1 0 0 F 1 1 1 S2 S1 S0 A B C
Function Generation Continued • Generate the previous F using a 4 to 1 Mux 0 C’ F C 1 S1 S0 A B
Truth Table Circuit 1 to 2 Demultiplexer