{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74S158N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74S158N","canonicalUrl":"https://icboms.com/texas-instruments/SN74S158N","factsUrl":"https://icboms.com/api/mcp/products/SN74S158N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74S158N MUX, S Series, 2-line input TTL, Bulk package, Interface & Transceivers.","salesMarkdown":"## What the S-Series 2-Line MUX TTL Means for Your BOM The SN74S158N is a 2-line input multiplexer from Texas Instruments' S Series TTL logic family. It selects one of two data inputs and routes it to the output, controlled by a common select line — a standard building block for data routing, bus isolation, or register-file addressing in legacy TTL-based systems. Because it is S-Series TTL (Schottky-clamped), it offers faster propagation delays than standard 74-series parts, typically in the 5-8 ns range, making it suitable for higher-speed logic paths in existing designs that cannot migrate to a newer logic family without a board spin. ## Lifecycle and Compliance — Active but RoHS Non-Compliant The part is RoHS non-compliant. This means it contains lead (Pb) in the solder finish or internal construction and cannot be used in products sold into RoHS-regulated markets unless a specific exemption applies. For legacy BOMs that already accept tin-lead solder, this is not a blocker — but any new design-in should verify the exemption or plan for a RoHS-compliant alternative. ## Package and Handling — Bulk Tube, Not Reel-Ready The SN74S158N ships in Bulk packaging — loose tubes, not tape-and-reel. For a pick-and-place line, this means the parts must be hand-loaded into a tube feeder or bulk tray; the line does not auto-feed from a reel. Plan for manual handling at the placement station. The DIP package (N suffix) is through-hole, so it survives reflow without MSL concerns — no bake required before soldering. The lead pitch is 2.54 mm (0.1 inch), standard for DIP sockets or wave-solder through-hole pads.","metaTitle":"SN74S158N Texas Instruments MUX, S Series, 2-Line Input TTL","metaDescription":"Texas Instruments SN74S158N MUX, S Series, 2-line input TTL. Active production. RoHS non-compliant. Bulk package. Available to order.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"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/833b366b9c36bdae02335edf25903ad1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74S158N/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for the SN74S158N?","answer":"The part is RoHS non-compliant (contains lead). Request the manufacturer's compliance certificate at RFQ."},{"question":"How do I get current pricing and availability for the SN74S158N?","answer":"Submit an RFQ against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74S158N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74S158N 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}}