{"schemaVersion":1,"slug":"logic-inverter","name":"Logic inverter","kind":"symbol","abbreviation":"NOT","aliases":["NOT gate","logical inversion"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Produces the opposite logical state of its defined digital input.","description":["Produces the opposite logical state of its defined digital input.","On a schematic, identify the input/output polarity and logic supply domain and trace the inverted signal and receiving-device interface. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","A digital NOT gate inverts a logic state; an inverting analogue amplifier changes a continuous signal with a gain relationship.","Terminal letters describe electrical roles, not package pin numbers. Check the selected public datasheet for the actual pin assignment, polarity and any internally connected terminals before completing the drawing."],"readingNotes":["Identify the input/output polarity and logic supply domain.","Trace the inverted signal and receiving-device interface."],"drawingChecklist":["Label the input/output polarity and logic supply domain.","Cross-reference the inverted signal and receiving-device interface.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"A digital NOT gate inverts a logic state; an inverting analogue amplifier changes a continuous signal with a gain relationship.","facts":[{"label":"Common schematic mnemonic","value":"NOT — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The input/output polarity and logic supply domain"},{"label":"Artwork scope","value":"Original educational component glyph; not a certified standard graphic or package pinout."}],"references":[{"sourceId":"pub-electronics-ti-hc04","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["logic-and-gate","plc-io"],"artwork":"electronics-gate-not","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/logic-inverter","illustration":{"url":"https://eloragrid.ai/library/illustrations/logic-inverter.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-hc04","title":"SN74HC04 — digital inverters","publisher":"Texas Instruments","url":"https://www.ti.com/lit/ds/symlink/sn74hc04.pdf","type":"manufacturer","scope":"Public device-function and terminal documentation used as an example of digital inverters. 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."}]}