Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

MUX

IEC

IEC multiplexer (MUX)

The IEC multiplexer carries the MUX qualifier. Select inputs are drawn with a binary grouping bracket producing G0 to Gn, and each data input is labelled with the matching number, so the data input whose number equals the select value is ANDed through to the output. An EN input, often active low, enables the whole element.

Drawing use

Schematic

Application

Logic & signals

Reference family

IEC / Manufacturer

Form evidence

Rectangular element with MUX qualifier and select inputs using G dependency. Qualifying-symbol and dependency conventions as explained in TI's public overview of IEEE Std 91-1984, which incorporates IEC 617-12 work. Independent educational drawing; not certified IEC geometry or an IEC database identifier. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

The analogue multiplexer passes analogue levels through switches; the logic MUX passes logic states.

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MUX

Symbols

Digital multiplexer

Selects one of several digital inputs for the documented output according to its selection controls.

Drawing use

Schematic

Application

Logic & signals

Reference family

Manufacturer

A distinction that matters

A digital multiplexer processes logic levels; an analogue multiplexer passes a continuous signal within its electrical limits.

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Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.