{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65HVD78D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65HVD78D","canonicalUrl":"https://icboms.com/texas-instruments/SN65HVD78D","factsUrl":"https://icboms.com/api/mcp/products/SN65HVD78D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65HVD78D, RS-422/RS-485 half-duplex transceiver, 50 Mbps data rate, 3V to 3.6V supply, 80 mV receiver hysteresis, -40°C to 125°C, 8-SOIC package, tube.","salesMarkdown":"The 50 Mbps data rate supports high-speed fieldbus links, industrial encoder interfaces, and backplane communication where the bus must toggle fast enough to keep up with a 50 MHz bit clock. At 50 Mbps the SN65HVD78D can handle Profibus at 12 Mbps, CAN FD bridges, or high-speed point-to-point RS-422 links with margin. The practical cable length shrinks as the baud rate rises — at 50 Mbps you are looking at a few metres of twisted pair before signal degradation eats the eye opening. For a 100-metre run you back the data rate down to the 1-10 Mbps range, where the 80 mV hysteresis helps keep the bus clean against ground offsets. ## Active lifecycle — no obsolescence contingency needed That means you can commit it to a production BOM without building in a last-time-buy reserve or qualifying a drop-in replacement. The base product number 65HVD78 covers the family; the D suffix is the 8-SOIC package variant.","metaTitle":"SN65HVD78D RS-485/422 Transceiver, 50 Mbps, 8-SOIC","metaDescription":"TI SN65HVD78D half-duplex RS-485/422 transceiver, 50 Mbps data rate, 3V-3.6V supply, -40°C to 125°C, 8-SOIC. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Type":"Transceiver","Duplex":"Half","Series":"-","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"50Mbps","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Base Product Number":"65HVD78","Receiver Hysteresis":"80 mV","Operating Temperature":"-40°C~125°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.4600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/01d3b90c85b255b169123cd5f5519c00.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN65HVD78D/alternatives.json"},"ai":{"faq":[{"question":"Is SN65HVD78D 5V tolerant?","answer":"The RS-485 bus pins have a wider common-mode range that can handle voltages beyond the supply, but the device must be powered from a regulated 3.3V rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65HVD78D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65HVD78D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}