{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS28DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS28DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS28DR","factsUrl":"https://icboms.com/api/mcp/products/SN74LS28DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74LS28DR, LS Series TTL NOR Gate, Bulk package, Logic ICs.","salesMarkdown":"## Device identity and logic family The SN74LS28DR is a quad 2-input NOR gate from Texas Instruments' LS (Low-Power Schottky) TTL series, a workhorse logic family for 5 V systems where speed and power balance matter. It sits in the Logic ICs category and is supplied in Bulk packaging, which means it arrives as loose devices rather than tape-and-reel — a detail that matters for hand-assembly or low-volume prototyping where a pick-and-place feeder is not available. This is typical for legacy LS TTL devices and must be factored into any RoHS-exempt or military/industrial BOM where leaded solder is permitted. ## Sourcing and ordering posture Because the Bulk package differs from the tape-and-reel variant (SN74LS28D), confirm the exact ordering code suffix with your procurement team before committing the line item.","metaTitle":"SN74LS28DR Texas Instruments NOR Gate, LS Series TTL, Bulk","metaDescription":"SN74LS28DR NOR gate from TI LS series TTL logic. Active lifecycle, Bulk package. Sourced to order against RFQ. RoHS non-compliant.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"*","Package":"Bulk","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.28","stockQuantity":0,"priceTiers":[{"qty":1069,"price":"$0.28000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/49d800545d9491e953511320f4c96c62.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for SN74LS28DR?","answer":"Texas Instruments provides RoHS compliance data for the SN74LS28DR. The part is marked RoHS non-compliant, so it contains lead above the exemption threshold. Standard TI documentation includes the datasheet, material declaration, and PCN history for this active part number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS28DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS28DR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}