{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AS1805N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AS1805N","canonicalUrl":"https://icboms.com/texas-instruments/SN74AS1805N","factsUrl":"https://icboms.com/api/mcp/products/SN74AS1805N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74AS1805N, AS Series, NOR Gate, 6-Function, TTL, Active, RoHS non-compliant, Bulk.","salesMarkdown":"## 6-function NOR gate in the AS TTL family The SN74AS1805N is a 6-function NOR gate, AS series, TTL logic. AS-series parts switch faster than 74LS logic but draw more supply current. ## Active status — no LTB urgency, but watch the RoHS flag The SN74AS1805N carries an Active lifecycle status, so there is no last-time-buy window to chase. One constraint: the part is RoHS non-compliant. If your BOM requires lead-free assembly or you are building for a market that enforces RoHS exemptions, this part needs a waiver or a leaded-process line. For legacy repair or mil/aero builds where tin-lead is still the standard, it is a straightforward fit. ## Bulk packaging — repair bench vs. pick-and-place That is fine for bench repair, prototype runs, or low-volume production where hand-stuffing is the norm. For high-volume pick-and-place, you will need to transfer to tube feeders or request an alternate packaging variant from TI.","metaTitle":"SN74AS1805N AS TTL NOR Gate, 6-Function, Active","metaDescription":"SN74AS1805N is a 6-function NOR gate from the AS series, TTL logic, 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":"$1.61","stockQuantity":0,"priceTiers":[{"qty":187,"price":"$1.61000","currency":"USD"}]},"links":{"datasheetUrl":"https://rocelec.widen.net/view/pdf/0lkcnrpj5o/TXIIS90581-1.pdf?t.download=true&u=5oefqw","sourceUrl":null},"ai":{"faq":[{"question":"What is the function of SN74AS1805N?","answer":"It contains six independent NOR gates in one package, used for logic gating, decoding, and signal inversion in 5 V digital circuits."},{"question":"Is SN74AS1805N RoHS compliant?","answer":"No, the SN74AS1805N is RoHS non-compliant. It uses leaded solder and is not suitable for lead-free assembly lines without a waiver."},{"question":"Can SN74AS1805N be replaced with a 74LS series equivalent?","answer":"A 74LS NOR gate will not be a direct electrical drop-in — the AS series has different input thresholds and drive current. For a pin-compatible replacement, consider the 4030BDM (a quad 2-input NOR gate in a similar logic family), but verify the number of gates and package footprint against your board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AS1805N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AS1805N 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}}