{"schemaVersion":1,"slug":"i2c-level-translator","name":"I2C voltage-level translator","kind":"symbol","abbreviation":"I2C LVL","aliases":["I2C voltage-level translator","I2C voltage-level translator functional block","I2C voltage-level translator schematic reference"],"category":"installation-communications","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"An I2C level translator adapts the specified logic-voltage levels between compatible bus sections.","description":["An I2C level translator adapts the specified logic-voltage levels between compatible bus sections.","Two devices with different supported logic supplies may communicate through a suitable translator.","Label the supply voltage domain on each side and show both I2C signals. Voltage translation lets compatible logic interfaces work across selected voltage levels; it does not automatically create a safety-rated isolation barrier. Follow the chosen translator’s requirements for pull-ups and power sequencing. This is original functional artwork, not a certified standard graphic or device pinout."],"readingNotes":["Identify both logic-supply domains.","Show clock/data connections and their selected pull-ups.","Reference supported voltage, bus and startup conditions.","Voltage translation is different from electrical isolation across a rated barrier."],"drawingChecklist":["Identify both logic-supply domains.","Show clock/data connections and their selected pull-ups.","Reference supported voltage, bus and startup conditions."],"distinction":"Voltage translation is different from electrical isolation across a rated barrier.","facts":[{"label":"Representation type","value":"Original functional block; not a certified IEC or IEEE graphic"},{"label":"Concept input","value":"First logic-voltage domain"},{"label":"Concept output","value":"Second logic-voltage domain"}],"references":[{"sourceId":"expansion-20261027-i2c","relevance":"I2C, I3C and SPI interface functions: public technical context for the named function. Product and compliance details remain with the publisher."}],"related":["logic-voltage-level-translator","i2c-bus-buffer","spi-interface-buffer","power-converter"],"artwork":"expanded-i2c-level-translator","publishedOn":"2026-10-27","updatedOn":"2026-10-27","provenance":"independent-public-research","plainEnglish":{"title":"What does I2C voltage-level translator mean?","introduction":"An I2C level translator adapts the specified logic-voltage levels between compatible bus sections.","example":"Two devices with different supported logic supplies may communicate through a suitable translator.","drawings":"Label the supply voltage domain on each side and show both I2C signals. Voltage translation lets compatible logic interfaces work across selected voltage levels; it does not automatically create a safety-rated isolation barrier. Follow the chosen translator’s requirements for pull-ups and power sequencing.","terms":[{"name":"Voltage domain","meaning":"A circuit section using a particular logic supply and reference."},{"name":"Level translation","meaning":"Adapting compatible signals between selected logic voltages."}],"diagram":"flow","caption":"Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.","sources":[{"label":"I2C, I3C and SPI interface functions","url":"https://www.ti.com/product-category/interface/i2c-i3c-ics/overview.html"}],"profileId":"researched-functional-reference","checklist":["Identify both logic-supply domains.","Show clock/data connections and their selected pull-ups.","Reference supported voltage, bus and startup conditions."],"questions":[{"question":"Does voltage translation mean the two sides are isolated?","answer":"No. Changing logic-voltage levels is distinct from transferring information across an electrical isolation barrier. Use an explicitly specified isolating interface if that separation is required."}],"steps":["First logic-voltage domain","I2C level translator","Second logic-voltage domain"],"bidirectional":true},"url":"https://eloragrid.ai/symbols/i2c-level-translator","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/i2c-level-translator.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"expansion-20261027-i2c","title":"I2C, I3C and SPI interface functions","publisher":"Texas Instruments","url":"https://www.ti.com/product-category/interface/i2c-i3c-ics/overview.html","type":"manufacturer","scope":"Public functional documentation. Original explanatory text and educational block artwork; no publisher graphics or files reproduced.","checkedOn":"2026-10-27","reuse":"link-only","relevance":"I2C, I3C and SPI interface functions: public technical context for the named function. Product and compliance details remain with the publisher."}]}