{"schemaVersion":1,"slug":"digital-multiplexer","name":"Digital multiplexer","kind":"symbol","abbreviation":"MUX","aliases":["digital data selector","logic multiplexer"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Selects one of several digital inputs for the documented output according to its selection controls.","description":["Selects one of several digital inputs for the documented output according to its selection controls.","On a schematic, identify the data inputs, selector bits and enable polarity and trace the selected digital output and any complementary output. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","A digital multiplexer processes logic levels; an analogue multiplexer passes a continuous signal within its electrical limits.","The preview is an independently drawn educational functional reference. Add the selected component’s actual power pins, terminal numbers, timing or analogue reference details when producing a construction drawing."],"readingNotes":["Identify the data inputs, selector bits and enable polarity.","Trace the selected digital output and any complementary output."],"drawingChecklist":["Label the data inputs, selector bits and enable polarity.","Cross-reference the selected digital output and any complementary output.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"A digital multiplexer processes logic levels; an analogue multiplexer passes a continuous signal within its electrical limits.","facts":[{"label":"Common schematic mnemonic","value":"MUX — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The data inputs, selector bits and enable polarity"},{"label":"Artwork scope","value":"Original educational functional/circuit reference; not a selected product pinout."}],"references":[{"sourceId":"pub-electronics-ti-hc151","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["analog-multiplexer","plc-io"],"artwork":"electronics-logic-mux","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/digital-multiplexer","illustration":{"url":"https://eloragrid.ai/library/illustrations/digital-multiplexer.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-electronics-ti-hc151","title":"SN74HC151 — digital multiplexing","publisher":"Texas Instruments","url":"https://www.ti.com/lit/ds/symlink/sn74hc151.pdf","type":"manufacturer","scope":"Public device-function and terminal documentation used as an example of digital multiplexing. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}]}