{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74180N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74180N","canonicalUrl":"https://icboms.com/texas-instruments/SN74180N","factsUrl":"https://icboms.com/api/mcp/products/SN74180N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74180N, 8-bit parity generator/checker, standard TTL logic, DIP package, active lifecycle, RoHS non-compliant.","salesMarkdown":"## What the SN74180N is and where it fits The Texas Instruments SN74180N is a 8-bit parity generator and checker implemented in standard TTL logic. It evaluates odd or even parity across eight data lines and a ninth input for cascading, producing both odd and even parity outputs. This part belongs to the 74xx series and is packaged in a DIP — the 'N' suffix indicates the plastic dual-in-line package. Typical applications include data transmission error checking in legacy bus architectures, memory system integrity verification, and serial communication links where a single parity bit is added to 8-bit data words. ## RoHS non-compliant — plan for it The SN74180N is listed as RoHS non-compliant, which means the leads and internal solder joints contain lead. For new production runs that must meet RoHS directives, this part requires a waiver or exemption. For repair, retrofit, or legacy-support BOMs where leaded solder is already in the process, the non-compliant status is not a blocker. ## Sourcing reality for the SN74180N Because the SN74180N is an active, RoHS non-compliant TTL part, it does not sit on every distributor's fast-moving shelf. If you are filling a BOM line for a legacy system or a repair depot, this is the kind of part that gets quoted to order — we source it against your RFQ and confirm lead time and pricing in the quote. No stock promises on the page, but the part is findable.","metaTitle":"SN74180N 8-bit parity generator/checker, Active, DIP","metaDescription":"SN74180N 8-bit parity generator/checker in DIP package. Active lifecycle, RoHS non-compliant.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"*","Package":"Bulk","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.36","stockQuantity":0,"priceTiers":[{"qty":221,"price":"$1.36000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/27734f5ecb257761b89c3d7161e5a00b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does SN74180N work with 5V logic levels?","answer":"Yes, the SN74180N is a standard 74xx TTL device designed for a 5 V supply. It uses standard TTL input thresholds (V_IH around 2 V, V_IL around 0.8 V) and is compatible with other 5 V TTL logic families. It is not 3.3 V tolerant."},{"question":"What are the direct replacements or equivalents for SN74180N?","answer":"The evidence does not list a direct pin-compatible replacement or equivalent for the SN74180N. The 74LS180 (SN74LS180) is a lower-power Schottky variant with the same 8-bit parity function, but pin compatibility depends on the specific package and logic family — verify the pinout against your board before substituting."},{"question":"What is SN74180N used for?","answer":"The SN74180N is an 8-bit parity generator and checker used in data transmission systems to add or verify a parity bit for error detection. It is commonly found in legacy digital systems, memory interfaces, and serial communication links where 8-bit data plus parity is the protocol."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74180N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74180N when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}