{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS649NT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS649NT","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS649NT","factsUrl":"https://icboms.com/api/mcp/products/SN74LS649NT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74LS649NT bus transceiver, LS-series TTL, Bulk package, active lifecycle.","salesMarkdown":"The SN74LS649NT is a bus transceiver from Texas Instruments' LS (Low-power Schottky) TTL family, designed for bidirectional data transfer between two independent buses. It sits in the Microcontrollers & Processors (MCU / MPU / DSP) category, though its role is a logic-level interface — translating between bus segments or buffering a processor's data lines. ## Lifecycle and compliance — active, but watch the RoHS flag The part is marked RoHS non-compliant, which means it contains lead (Pb) above the 0.1 % threshold. This is typical for LS TTL legacy parts; if your BOM requires RoHS exemption 7(c)-I for lead in electronic components, verify the acceptance with your compliance team. ## Sourcing and supply posture Supplied in Bulk packaging — loose tubes or trays, not tape-and-reel. Plan for manual placement or tube-fed pick-and-place if your line is set up for reels.","metaTitle":"SN74LS649NT Bus Transceiver, LS TTL, Active","metaDescription":"SN74LS649NT bus transceiver, LS-series TTL, active production. Texas Instruments. RoHS non-compliant. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Series":"*","Package":"Bulk","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.03","priceTiers":[{"qty":24,"price":"$13.03000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ba7ca6511b707ac473f629623729303f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LS649NT/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for SN74LS649NT?","answer":"Texas Instruments provides a datasheet and the RoHS non-compliance declaration. The part is not RoHS compliant (contains lead). No REACH, UL, or IEC certification is listed in the available documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS649NT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS649NT 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}}