{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"54S158FM","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"54S158FM","canonicalUrl":"https://icboms.com/texas-instruments/54S158FM","factsUrl":"https://icboms.com/api/mcp/products/54S158FM","rawCanonicalId":null},"summary":{"shortDescription":"Multiplexer, 2 Line Input, TTL, Series *, Package Bulk, Active.","salesMarkdown":"## Device identity and logic function The 54S158FM is a TTL multiplexer with 2-line input, designed to select one of two data sources onto a single output line. This part belongs to the 54S series, a military-temperature-grade TTL family known for high-speed Schottky-clamped logic. ## Lifecycle and compliance posture Marked as Active in production status, the 54S158FM remains available for procurement through independent distribution channels. This component is RoHS non-compliant, a common characteristic of legacy TTL logic families that use lead-bearing solder terminations. ## Packaging and sourcing considerations Supplied in Bulk packaging, the 54S158FM is typically handled as loose units for through-hole assembly or prototyping, not tape-and-reel. For BOM integration, confirm the package outline against the existing PCB footprint — the 54S series uses a ceramic DIP or flat-pack format consistent with military-spec layouts.","metaTitle":"54S158FM Multiplexer, TTL, 2-Line Input, Active","metaDescription":"54S158FM multiplexer, 2-line TTL input, active production. Bulk package. 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":"$2.13","priceTiers":[{"qty":141,"price":"$2.13000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c21ea53260cb7c0875f53b9f48231d5a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/54S158FM/alternatives.json"},"ai":{"faq":[{"question":"Is 54S158FM RoHS compliant?","answer":"No, the 54S158FM is listed as RoHS non-compliant. This is typical for legacy TTL logic from the 54S series, which uses lead-based solder terminations."},{"question":"How can I order the 54S158FM or check availability?","answer":"Current pricing, stock levels, and lead time are confirmed at the time of quotation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/54S158FM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/54S158FM 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}}