{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HCT540M","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HCT540M","canonicalUrl":"https://icboms.com/texas-instruments/CD74HCT540M","factsUrl":"https://icboms.com/api/mcp/products/CD74HCT540M","rawCanonicalId":null},"summary":{"shortDescription":"CD74HCT540M, 74HCT series, Buffer/Line Driver, Inverting, 3-State, 1 element, 8 bits per element, 4.5V~5.5V supply, -55°C~125°C, 20-SOIC (0.295\", 7.50mm Width), Surface Mount, Tube.","salesMarkdown":"## What this 74HCT inverting buffer is for The CD74HCT540M is a single-element octal inverting buffer/line driver from the 74HCT series, with 3-state outputs. It takes eight input signals, inverts them, and drives the outputs onto a bus — or holds them high-impedance when the output-enable is inactive. ## Output drive and bus interface The 3-state outputs let multiple devices share a common bus line; when the output-enable is deasserted, the output goes high-impedance and the bus floats to whatever the pull-up or terminator sets. The inverting logic means a low on the input gives a high on the bus, which matters if your backplane convention uses active-low enables or inverted address strobes. ## Package, mounting, and shipping The supplier device package is 20-SOIC. The wide-body SOIC footprint is standard; verify the land pattern against your assembly house's preferred 1.27 mm pitch layout.","metaTitle":"CD74HCT540M 74HCT Inverting Buffer, 3-State, 20-SOIC","metaDescription":"CD74HCT540M 74HCT series inverting buffer/line driver, 3-state outputs, 4.5-5.5V supply, -55 to 125°C, 20-SOIC. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74HCT","Package":"Tube","Logic Type":"Buffer, Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Elements":"1","Operating Temperature":"-55°C ~ 125°C (TA)","Supplier Device Package":"20-SOIC","Current - Output High, Low":"6mA, 6mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.16000","currency":"USD"},{"qty":10,"price":"$1.04100","currency":"USD"},{"qty":25,"price":"$0.98840","currency":"USD"},{"qty":100,"price":"$0.81190","currency":"USD"},{"qty":250,"price":"$0.75892","currency":"USD"},{"qty":500,"price":"$0.67066","currency":"USD"},{"qty":1000,"price":"$0.52947","currency":"USD"},{"qty":2500,"price":"$0.49950","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/68a1832206e4274adfbc688c87f0eb44.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the function of CD74HCT540M?","answer":"It is an octal inverting buffer/line driver with 3-state outputs. Eight bits in, inverted bits out, with a single output-enable that puts all outputs into high-impedance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HCT540M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HCT540M 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}}