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<p>In <a href="page.php?w=electronics">electronics</a>, a <b>multiplexer</b> (or <b>mux</b>; spelled sometimes as <b>multiplexor</b>), also known as a <b>data selector</b>, is a device that selects between several <a href="page.php?w=Analog_signal">analog</a> or <a href="page.php?w=Digital_signal_%28electronics%29">digital</a> input signals and forwards the selected input to a single output line. The selection is directed by a separate set of digital inputs known as select lines. A multiplexer of  inputs has  select lines, which are used to select</p><p>
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