{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65HVD1791DG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65HVD1791DG4","canonicalUrl":"https://icboms.com/texas-instruments/SN65HVD1791DG4","factsUrl":"https://icboms.com/api/mcp/products/SN65HVD1791DG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65HVD1791DG4 RS-485/RS-422 transceiver, full duplex, 115 Kbps data rate, 4.5V~5.5V supply, -40°C~105°C, 14-SOIC package.","salesMarkdown":"## Full-duplex RS-485 transceiver for 5V industrial buses The Texas Instruments SN65HVD1791DG4 is a full-duplex RS-485/RS-422 transceiver in a 14-SOIC package, rated for 115 Kbps signaling over differential twisted-pair cables. At 115 Kbps this transceiver is in the moderate-speed tier, not the high-throughput class (10 Mbps+). The rise and fall times are slow enough that signal reflections on unterminated stubs are less critical than at higher rates, but for runs over a few hundred feet you still want a termination resistor at the far end. The 50 mV hysteresis helps keep the receiver from chattering on a lightly loaded or idle bus. The base product number 65HVD1791 covers a family of pin-compatible variants; the DG4 suffix indicates lead-free plating and the standard 14-SOIC package.","metaTitle":"SN65HVD1791DG4 RS-485/RS-422 Transceiver, Full Duplex","metaDescription":"Texas Instruments SN65HVD1791DG4 RS-485/RS-422 full-duplex transceiver. 115 Kbps data rate, 4.5V-5.5V supply, -40°C to 105°C.","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":"Tube","Protocol":"RS422, RS485","Data Rate":"115Kbps","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"65HVD1791","Receiver Hysteresis":"50 mV","Operating Temperature":"-40°C~105°C","Supplier Device Package":"14-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$58.8000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b38d061c4360ce75c40342dad0f5f015.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN65HVD1791DG4/alternatives.json"},"ai":{"faq":[{"question":"Is SN65HVD1791DG4 full duplex?","answer":"Yes, it is a full-duplex transceiver. It has one driver and one receiver that can operate simultaneously, which requires a four-wire RS-485 bus (two twisted pairs) rather than the two-wire half-duplex arrangement."},{"question":"What is the data rate of SN65HVD1791DG4?","answer":"The data rate is 115 Kbps. This is adequate for Modbus RTU, BACnet MS/TP, and similar fieldbus protocols, but not for high-speed links like Profibus at 12 Mbps."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65HVD1791DG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65HVD1791DG4 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}}