{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS55D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS55D","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS55D","factsUrl":"https://icboms.com/api/mcp/products/SN74LS55D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74LS55D AND-OR-INVERT gate, LS series, bulk package, active production.","salesMarkdown":"## Device function and family fit The SN74LS55D is an AND-OR-INVERT gate from the 74LS (low-power Schottky) series, implementing a combined AND-OR logic stage followed by inversion in a single package. ## RoHS compliance flag The SN74LS55D is marked RoHS non-compliant — the lead content in the solder finish or package body exceeds the RoHS exemption thresholds. Legacy BOMs that do not require lead-free assembly can still use this part; for lead-free lines a RoHS-compliant alternative or an approved exemption waiver is needed.","metaTitle":"SN74LS55D AND-OR-INVERT Gate, LS Series, Active","metaDescription":"TI SN74LS55D AND-OR-INVERT gate, LS series, active production. Bulk package. Quoted to order against BOM quantity.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"*","Package":"Bulk","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.41","priceTiers":[{"qty":740,"price":"$0.41000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4900e32a2fa73d49ecc5c56fdc7aa2b1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LS55D/alternatives.json"},"ai":{"faq":[{"question":"Is SN74LS55D equivalent to 74LS55?","answer":"Yes — the SN74LS55D is Texas Instruments' prefix version of the 74LS55 AND-OR-INVERT gate. The SN prefix denotes the TI-manufactured variant; the 74LS55 functional specification is the same across JEDEC-standard vendors."},{"question":"What is the function of SN74LS55D?","answer":"The SN74LS55D is an AND-OR-INVERT gate. It performs a logical AND of two or more input pairs, ORs the results, and inverts the final output — a single-gate solution for sum-of-products logic that would otherwise require separate AND, OR, and NOT stages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS55D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS55D 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}}