mux is used to select a single input out of various inputs.eg. there are 4 inputs and u want to selext the first then u mail use the select lines as 00 for the first input
01 for second
10 for third
11 for fourth
A composite signal is a mux or a bus signal. These can be thought of as a collection of other component signals.
You'l need 5 4 to 1 muxes for making a 16 to 1 mux if your inputs are say W(0)-W(15) i.e 16 inputs ..... you start of with giving 4 inputs each to the 4 to 1 muxes the select lines for all 4 4 to 1 muxes will be common now each of the four 4 to 1 muxes is giving you one o/p so ..... take each of those 4 outputs and give them to the fifth 4 to 1 mux and voila you have a final o/p corresponding to 16 inputs !!! THIS IS HOW IT WILL LOOK LIKE inputs outputs mux 1 : w(0)w(1)w(2)w(3) m(1) mux2 : w(4)w(5)w(6)w(7) m(2) mux3 : w(8)w(9)w(10)w(11) m(3) mux4 : w(12)w(13)w(14)w(15) m(4) taking the above 4 outputs and giving them 2 mux5 mux5 : m(1)m(2)m(3)m(4) m(5) m(5) is the final output corresponding to 16 inputs W(0)-W(15)
application of multi door calling bell
shift register application
Multiplexing is the combination of several signals on one carrier or medium. Demultiplexing is the extraction of each of the original signals. You can't have just one or the other, they are both necessary in the communication process. So the concept of one having an advantage over the other is senseless.
what is a mux
we'll get 4 input mux cuz 2^4=16.... therefore the first 4 input mux has 16 o/p.. hence four-4 i/p mux are required to fill all 16 leads.
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MUX(A, B, S) = A*S + B*S' NOT(A) = MUX(0, 1, A) = 0*A + 1*A' = A' From http://noyesno.net/
a mux has many i/ps & 1 o/p but a router connects many n/ws and the may or may not be of same kind a mux does not follow an algo but router follows algo such as dikakstra bellman ford or any other or a combination.......
A CMOS Mux is a piece of technology that is used to create integrated circuits that are used in electronics. The full name of 'CMOS' is Complementary Metal Oxide Semiconductor.
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implement it. enough said.
Features of a multiplexer, also known as a mux, include being able to select analog or digital signal inputs and forward the signals into a single line. This is an electronic device and can be purchased in stores that sell electronic equipment.
A simple program for 8 x 1 multiplexer is given below. Library ieee; use ieee.std_logic_1164.all; entity mux is port (a, b, c, d, e, f, g, h : in std_logic; s: in std_logic_vector ( 2 downto 0); y, yn : out std_logic ; St : in std_logic) ; end mux ; architecture mux of mux is signal yt : std_logic; begin process (a, b, c, d, e, f, g, h, s, yt) begin case s is when "000" => yt <= a; when "001" => yt <= b; when "010" => yt <= c; when "011" => yt <= d; when "100" => yt <= e; when "101" => yt <= f; when "110" => yt <= g; when "111" => yt <= h; when others => yt <= (others => '0'); end case; if St='1' then y <= yt; yn <= not yt; else y<= '0'; yn <= '1'; end if; end mux;
using 8:1 mux....
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