{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65HVD22DRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65HVD22DRG4","canonicalUrl":"https://icboms.com/texas-instruments/SN65HVD22DRG4","factsUrl":"https://icboms.com/api/mcp/products/SN65HVD22DRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65HVD22DRG4 RS422/RS485 half-duplex transceiver, 500 kbps data rate, 4.5V-5.5V supply, 8-SOIC package, -40°C to 85°C operating temperature.","salesMarkdown":"## RS-485 half-duplex transceiver in 8-SOIC — 500 kbps, 5 V supply It handles one driver and one receiver on a shared differential bus, with a maximum data rate of 500 kbps. ## Half-duplex constraint and bus timing Because this is a half-duplex part, the driver and receiver share the same bus pair. The firmware must manage the driver enable (DE) and receiver enable (RE) pins to avoid contention — the bus turns around between transmit and receive cycles. At 500 kbps the bit period is 2 µs, so the enable-to-data timing needs to be accounted for in the UART driver state machine. The 130 mV hysteresis helps with slow edges on long stubs, but the half-duplex architecture is the primary fit constraint: if the application needs simultaneous bidirectional communication, this part won't work.","metaTitle":"TI SN65HVD22DRG4 RS485 Transceiver, Half-Duplex, 500 kbps","metaDescription":"Texas Instruments SN65HVD22DRG4 RS422/RS485 half-duplex transceiver. 500 kbps data rate, 4.5V-5.5V supply, -40°C to 85°C. RoHS compliant.","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)","Protocol":"RS422, RS485","Data Rate":"500kbps","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"65HVD22","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":"$58.8000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bd0d8e36e12ed062757287fb6e2338d5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN65HVD22DRG4/alternatives.json"},"ai":{"faq":[{"question":"Can SN65HVD22DRG4 be used in full-duplex mode?","answer":"No. The SN65HVD22DRG4 is a half-duplex transceiver — the driver and receiver share the same differential bus pair. Full-duplex RS-485 requires two separate twisted pairs and a different transceiver part."},{"question":"Is SN65HVD22DRG4 RoHS compliant?","answer":"The SN65HVD22DRG4 is listed as RoHS compliant. The 'G4' suffix in the order code indicates TI's green/RoHS-compliant packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65HVD22DRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65HVD22DRG4 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}}