{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65HVD21MDREPG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65HVD21MDREPG4","canonicalUrl":"https://icboms.com/texas-instruments/SN65HVD21MDREPG4","factsUrl":"https://icboms.com/api/mcp/products/SN65HVD21MDREPG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65HVD21MDREPG4, RS-422/RS-485 transceiver, half-duplex, 1/1 driver/receiver, 5 Mbps data rate, 130 mV receiver hysteresis, 4.5V to 5.5V supply, -55°C to 125°C, 8-SOIC.","salesMarkdown":"## Military-temperature RS-485 for harsh-environment links It delivers a single driver and single receiver on one channel, supporting data rates up to 5 Mbps with 130 mV of receiver hysteresis for noise immunity on long bus runs. The supply range of 4.5V to 5.5V matches standard 5V industrial and avionics backplanes. This is the 'M' (military temp) and 'EP' (enhanced product) variant of the base 65HVD21 family, designed for applications where the standard commercial or industrial temperature grades won't survive — think engine bay electronics, satellite telemetry links, or outdoor telecom cabinets in desert or arctic deployments. ## Rework and board-level handling notes The 8-SOIC package is about as rework-friendly as it gets — the 0.154-inch body width and 1.27 mm pitch leave plenty of room for a fine-tip iron or hot-air pencil. No exposed thermal pad to worry about, which simplifies the stencil and reduces the risk of solder bridging under the package. ## What the military temp range means for procurement","metaTitle":"TI SN65HVD21MDREPG4 RS-485 Transceiver, 5Mbps","metaDescription":"Texas Instruments SN65HVD21MDREPG4 half-duplex RS-422/RS-485 transceiver. 5 Mbps data rate, 130 mV hysteresis, -55°C to 125°C range. 8-SOIC package.","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":"5Mbps","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":"65HVD21","Receiver Hysteresis":"130 mV","Operating Temperature":"-55°C~125°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1780e08d0bd168526224e4d7d458f629.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN65HVD21MDREPG4/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between SN65HVD21MDREPG4 and the standard SN65HVD21D?","answer":"The primary difference is the temperature grade. The 'M' suffix and 'EP' (enhanced product) designation also imply tighter process control and qualification for high-reliability applications."},{"question":"Is SN65HVD21MDREPG4 RoHS compliant?","answer":"The part number suffix 'G4' indicates TI's green/RoHS-compliant lead-free finish. The device is manufactured with a matte-tin plating on the leads and does not contain restricted substances above the RoHS thresholds. No separate exemption certificate is needed for standard EU RoHS compliance."},{"question":"What is the maximum data rate of SN65HVD21MDREPG4?","answer":"The SN65HVD21MDREPG4 is rated for a maximum data rate of 5 Mbps. This is a standard speed grade for the 65HVD21 family, suitable for most industrial fieldbus applications like Modbus RTU, PROFIBUS, or DMX512 lighting control over moderate cable lengths. For higher-speed RS-485 links (20 Mbps or more), you would need a different device like the SN65HVD22 or SN65HVD23 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65HVD21MDREPG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65HVD21MDREPG4 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}}