{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65HVD1781QDRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65HVD1781QDRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN65HVD1781QDRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN65HVD1781QDRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65HVD1781QDRQ1 automotive-grade half-duplex RS-485/RS-422 transceiver, 1/1 driver/receiver, 1Mbps data rate, 3.15V-5.5V supply, 50mV receiver hysteresis, -40°C to 125°C, 8-SOIC package.","salesMarkdown":"## Supply voltage flexibility — 3.3V or 5V bus without a translator The 3.15V to 5.5V supply range means this transceiver can be powered from a standard 3.3V rail in a mixed-voltage system or from a 5V rail in legacy industrial networks. This is a practical advantage when the same PCB design must support both 3.3V and 5V variants across different product tiers. ## Package and footprint — 8-SOIC, hand-solderable The 1.27 mm pin pitch is easy to route on a two-layer PCB. For a maker or small-run project, the SOIC-8 footprint is breadboard-friendly with a SOIC-to-DIP adapter — no fine-pitch or BGA challenges.","metaTitle":"SN65HVD1781QDRQ1 RS-485/RS-422 Transceiver, 1Mbps, AEC-Q100","metaDescription":"TI SN65HVD1781QDRQ1 half-duplex RS-485/RS-422 transceiver, 1Mbps data rate, 3.15V-5.5V supply, -40°C to 125°C, AEC-Q100 automotive grade.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Type":"Transceiver","Duplex":"Half","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Protocol":"RS422, RS485","Data Rate":"1Mbps","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 5.5V","Base Product Number":"65HVD1781","Receiver Hysteresis":"50 mV","Operating Temperature":"-40°C~125°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.7400","priceTiers":[{"qty":1,"price":"$5.74000","currency":"USD"},{"qty":10,"price":"$5.15900","currency":"USD"},{"qty":25,"price":"$4.87720","currency":"USD"},{"qty":100,"price":"$4.22700","currency":"USD"},{"qty":250,"price":"$4.01024","currency":"USD"},{"qty":500,"price":"$3.59838","currency":"USD"},{"qty":1000,"price":"$3.06750","currency":"USD"},{"qty":2500,"price":"$3.06750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8c330c6acc8cd21d7a0aabafe6cda1ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN65HVD1781QDRQ1/alternatives.json"},"ai":{"faq":[{"question":"Does SN65HVD1781QDRQ1 support both 3.3V and 5V supply?","answer":"This makes it compatible with both 3.3V logic systems and legacy 5V RS-485 buses."},{"question":"What is the maximum data rate of SN65HVD1781QDRQ1?","answer":"The data rate is 1Mbps, suitable for most industrial automation, building management, and automotive communication links that run RS-485 at moderate speed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65HVD1781QDRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65HVD1781QDRQ1 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}}