{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74ACT240M","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74ACT240M","canonicalUrl":"https://icboms.com/texas-instruments/CD74ACT240M","factsUrl":"https://icboms.com/api/mcp/products/CD74ACT240M","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ACT series, CD74ACT240M, Buffer, Inverting, 3-State output, 4.5V to 5.5V supply, -40°C to 85°C, surface mount 20-SOIC.","salesMarkdown":"The inverting logic and independent output-enable controls per nibble make it a natural fit for address decoding, memory-bank selection, or any bus where an active-low assertion is the convention. ## 24 mA output — what the number means for fan-out and noise margin The 24 mA drive is the same for both high and low states, which simplifies DC fan-out calculations: at 5 V you can drive about ten LSTTL loads or twenty 74ACT loads before the VOL/VOH margins shrink below 0.4 V. In a noisy industrial environment the symmetric drive also keeps the rising and falling edge rates matched, reducing the common-mode component of crosstalk on a parallel bus. If your load pulls more than 24 mA per output, you need a discrete buffer stage — this part is sized for logic-level fan-out, not power switching. If your system lives in a conditioned server room, the commercial-grade sibling (CD74ACT240E) would also work, but the industrial grade gives you margin if the enclosure gets warm.","metaTitle":"CD74ACT240M 74ACT Buffer, Inverting, 24mA, 20-SOIC","metaDescription":"CD74ACT240M 74ACT series octal buffer/inverter with 3-state outputs. 24mA drive, 4.5V-5.5V supply, -40 to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":"74ACT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74ACT","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":"2","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-SOIC","Current - Output High, Low":"24mA, 24mA","Number of Bits per Element":"4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.81","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.81000","currency":"USD"},{"qty":10,"price":"$1.62400","currency":"USD"},{"qty":25,"price":"$1.53160","currency":"USD"},{"qty":100,"price":"$1.30500","currency":"USD"},{"qty":250,"price":"$1.22536","currency":"USD"},{"qty":500,"price":"$1.07220","currency":"USD"},{"qty":1000,"price":"$0.88839","currency":"USD"},{"qty":2500,"price":"$0.86700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/38efa430ec0a62c615f7ad17ab205ec5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"When sourcing CD74ACT240M, what is the closest functional alternative?","answer":"The SN74ABT2245DW is a similar 5 V octal transceiver in the same 20-SOIC package, but it is non-inverting and has a single 8-bit element rather than two 4-bit inverting buffers. For a drop-in inverting replacement, stay with the CD74ACT240M or its commercial-temperature variant CD74ACT240E."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74ACT240M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74ACT240M when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}