{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MM74HC191N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MM74HC191N","canonicalUrl":"https://icboms.com/texas-instruments/MM74HC191N","factsUrl":"https://icboms.com/api/mcp/products/MM74HC191N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series binary counter, MM74HC191N, Bulk package, HC/UH logic family, active production.","salesMarkdown":"## Binary counter, 74HC logic family The Texas Instruments MM74HC191N is a binary counter from the 74HC series, a high-speed CMOS logic family that balances speed with low power consumption for general-purpose digital counting applications. Listed under Microcontrollers & Processors, this is a logic-level binary counter — not a microcontroller — used in frequency division, event counting, and sequential timing circuits where a 4-bit up/down counter is needed. ## Active production, RoHS constraint RoHS non-compliant. This part contains lead in the solder finish or die attach, which exempts it from RoHS restrictions for certain applications but means it cannot be used in new designs requiring full RoHS compliance without an exemption claim.","metaTitle":"MM74HC191N Texas Instruments Binary Counter, 74HC Series","metaDescription":"Texas Instruments MM74HC191N binary counter, 74HC series, active production. RoHS non-compliant. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Series":"74HC","Package":"Bulk","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.34","priceTiers":[{"qty":918,"price":"$0.34000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8ac6b047670305e2625e2b70ba19a1a7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MM74HC191N/alternatives.json"},"ai":{"faq":[{"question":"Is MM74HC191N RoHS compliant?","answer":"No, the MM74HC191N is RoHS non-compliant. The part contains lead in the finish or die attach, which may limit its use in markets with strict RoHS enforcement unless an exemption applies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MM74HC191N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MM74HC191N 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}}