{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ALS540NS","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ALS540NS","canonicalUrl":"https://icboms.com/texas-instruments/SN74ALS540NS","factsUrl":"https://icboms.com/api/mcp/products/SN74ALS540NS","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ALS series, SN74ALS540NS, Buffer/Line Driver, Inverting, 3-State, 8-bit, 4.5V to 5.5V supply, 15mA/24mA output, 0°C to 70°C, Surface Mount 20-SOIC.","salesMarkdown":"## What this 74ALS inverting buffer does on your bus The Texas Instruments SN74ALS540NS is an 8-bit inverting buffer with 3-state outputs from the 74ALS family. It takes eight input signals and presents their inverted logic levels at the outputs, with a 3-state enable that lets you float the outputs for shared-bus applications. ## Supply rail and temperature — where it fits on the board Runs on a single 4.5 V to 5.5 V rail. The 0°C to 70°C commercial temperature grade means it is specified for indoor equipment. ## Package and mounting — 20-SOIC on the layout Housed in a 20-SOIC (0.209\" body width, 5.30 mm) surface-mount package, supplier device package 20-SO. No exposed pad, so thermal dissipation goes through the leads. ## Lifecycle and sourcing — active, no LTB worry ROHS3 compliant, no exemption issues for EU markets.","metaTitle":"SN74ALS540NS Buffer, Inverting, 3-State, 20-SOIC, 4.5V-5.5V","metaDescription":"TI SN74ALS540NS 8-bit inverting buffer with 3-state outputs. 15mA/24mA drive, 4.5V-5.5V supply, 0°C to 70°C, 20-SOIC. Active lifecycle, ROHS3.","metaKeywords":null},"attributes":{"series":"74ALS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74ALS","Package":"Tube","Logic Type":"Buffer, Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Elements":"1","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"20-SO","Current - Output High, Low":"15mA, 24mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.01","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.01000","currency":"USD"},{"qty":10,"price":"$3.60000","currency":"USD"},{"qty":25,"price":"$3.40320","currency":"USD"},{"qty":100,"price":"$2.94960","currency":"USD"},{"qty":250,"price":"$2.79836","currency":"USD"},{"qty":500,"price":"$2.51094","currency":"USD"},{"qty":1000,"price":"$2.14050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6a09b87200d0a9608f6b5a36acce0650.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ALS540NS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ALS540NS 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}}