{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65HVD20DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65HVD20DR","canonicalUrl":"https://icboms.com/texas-instruments/SN65HVD20DR","factsUrl":"https://icboms.com/api/mcp/products/SN65HVD20DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65HVD20DR RS-485/RS-422 half-duplex transceiver, 25 Mbps data rate, 4.5V to 5.5V supply, 130 mV receiver hysteresis, -40°C to 85°C, 8-SOIC package.","salesMarkdown":"At 25 Mbps the SN65HVD20DR can push a full-duplex RS-422 link across tens of metres of twisted pair before signal degradation forces a lower rate or a repeater. For RS-485 multi-drop networks the practical cable length at 25 Mbps is shorter — roughly 10 to 20 metres depending on stub length and termination — because reflections and common-mode loading accumulate with each node. The 130 mV hysteresis helps the receiver stay clean on a noisy factory floor. ## 5 V supply only — not a 3.3 V part It is not rated for 3.3 V operation. If your system runs a 3.3 V bus, look at the SN65HVD23x family or the SN65HVD178x series, which include 3.3 V compatible options with similar data rates. The 5 V rail gives better noise margin on the differential bus, but it rules out direct connection to a 3.3 V UART without level translation.","metaTitle":"SN65HVD20DR RS-485/RS-422 Transceiver, 25 Mbps, 8-SOIC","metaDescription":"TI SN65HVD20DR half-duplex RS-485/RS-422 transceiver, 25 Mbps data rate, 4.5V–5.5V supply, 130 mV hysteresis, -40°C to 85°C.","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":"Tape & Reel (TR); Cut Tape (CT)","Protocol":"RS422, RS485","Data Rate":"25Mbps","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"65HVD20","Receiver Hysteresis":"130 mV","Operating Temperature":"-40°C~85°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.3800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bd0d8e36e12ed062757287fb6e2338d5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN65HVD20DR/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum data rate of SN65HVD20DR?","answer":"The SN65HVD20DR is rated for 25 Mbps. At that speed the practical cable length depends on the bus topology — full-duplex RS-422 can run tens of metres, while RS-485 multi-drop networks need shorter stubs and proper termination to maintain signal integrity."},{"question":"Is SN65HVD20DR compatible with 3.3V?","answer":"No. It is not specified for 3.3 V operation. For 3.3 V RS-485/RS-422 transceivers, consider the SN65HVD23x family or the SN65HVD178x series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65HVD20DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65HVD20DR 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}}