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Editing multiplexer
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For 2, 4, and 8-input multiplexers the equations are thus: | For 2, 4, and 8-input multiplexers the equations are thus: | ||
− | :<math> | + | :<math>\text{MUX21}(a, b) = (A\overline{S_0})+(BS_0)</math> |
− | + | :<math>\text{MUX41}(a, b, c, d) = (A\overline{S_0 S_1})+(B\overline{S_0}S_1)+(C S_0\overline{S_1})+(D S_0 S_1)</math> | |
− | \text{MUX21}(a, b) | + | :<math>\text{MUX81}(a, b, c, d, e, f, g) = (A\overline{S_0 S_1 S_2})+(B\overline{S_0 S_1}S_2)+(C \overline{S_0} S_1 \overline{S_2})+(D \overline{S_0} S_1 S_2)+(E S_0 \overline{S_1 S_2})+(F S_0 S_1 \overline{S_2})+(G S_0 S_1 S_2)</math> |
− | \text{MUX41}(a, b, c, d) | ||
− | \text{MUX81}(a, b, c, d, e, f, g) | ||
− | |||
− | </math> | ||
{{clear}} | {{clear}} | ||
− | |||
== Implementations == | == Implementations == | ||
Many different variations of multiplexers exist. Typically larger multiplxers (over 8 or 16 inputs) are built using smaller multiplxers using a [[/tree|multiplexer tree]]. | Many different variations of multiplexers exist. Typically larger multiplxers (over 8 or 16 inputs) are built using smaller multiplxers using a [[/tree|multiplexer tree]]. |