{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65HVD77DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65HVD77DR","canonicalUrl":"https://icboms.com/texas-instruments/SN65HVD77DR","factsUrl":"https://icboms.com/api/mcp/products/SN65HVD77DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65HVD77DR, RS-485/RS-422 full-duplex transceiver, 50 Mbps data rate, 3V–3.6V supply, –40°C to 125°C, 8-SOIC package.","salesMarkdown":"## 50 Mbps full-duplex transceiver for industrial RS-485 buses The Texas Instruments SN65HVD77DR is a full-duplex RS-485/RS-422 transceiver rated for 50 Mbps signaling on a single 3.3 V rail (3V to 3.6V). ## 3.3 V only — rail planning matters If your system runs a 5 V bus or mixed-voltage backplane, you will need a level translator or a 5 V-tolerant transceiver. TI lists the SN65HVD77DR as Active.","metaTitle":"SN65HVD77DR RS-485/RS-422 Transceiver, 50 Mbps, 3.3 V","metaDescription":"TI SN65HVD77DR full-duplex RS-485/RS-422 transceiver, 50 Mbps data rate, 3V–3.6V supply, –40°C to 125°C, SOIC-8. RFQ for current pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Type":"Transceiver","Duplex":"Full","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","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":"65HVD77","Receiver Hysteresis":"70 mV","Operating Temperature":"-40°C~125°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.0300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9087c32540c5c64471c20d05147d7cee.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN65HVD77DR/alternatives.json"},"ai":{"faq":[{"question":"Does SN65HVD77DR support RS422?","answer":"Yes, the SN65HVD77DR supports both RS-422 and RS-485 protocols. It is a full-duplex transceiver with one driver and one receiver."},{"question":"What is the difference between SN65HVD77DR and SN65HVD78DR?","answer":"The SN65HVD77DR is a full-duplex transceiver (separate driver and receiver enable pins), while the SN65HVD78DR is a half-duplex variant with a single enable pin for direction control. Both run at 50 Mbps and share the same 3.3 V supply and SOIC-8 footprint, so the choice is purely bus topology: full-duplex for point-to-point or multi-drop with separate transmit/receive pairs, half-duplex for shared two-wire buses."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65HVD77DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65HVD77DR 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}}