{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"74HC240DB,118","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"74HC240DB118","canonicalUrl":"https://icboms.com/nxp/74HC240DB118","factsUrl":"https://icboms.com/api/mcp/products/74HC240DB%2C118","rawCanonicalId":null},"summary":{"shortDescription":"Nexperia 74HC240DB,118 octal inverting buffer/line driver, 3-state outputs, 20-SSOP package, 2V to 6V supply, -40°C to 125°C operating temperature.","salesMarkdown":"## What this octal inverting buffer does on the bus The Nexperia 74HC240DB,118 is an octal inverting buffer with 3-state outputs from the 74HC family, designed for bus-oriented systems where signal inversion and output disable are needed. Each of the two elements handles four bits, giving eight channels total, with a common output-enable control per bank. The 3-state outputs let you disconnect the driver from a shared bus line, preventing contention when another device drives the same trace. Supply range from 2V to 6V means it works across 3.3V and 5V logic domains without a level translator, simplifying mixed-voltage board designs. ## The 7.8 mA output drive — what it can and cannot do Output current is rated 7.8 mA for both high and low states. That is typical for the 74HC family — enough to drive CMOS logic inputs, small LEDs with a series resistor, or a single TTL load, but not enough for a relay coil or a long unterminated cable. If you need to fan out to multiple loads or drive a 50-ohm backplane, plan on a dedicated line driver after this buffer. ## 20-SSOP footprint — board layout notes The 20-SSOP package (0.209\" body width, 5.30 mm) is a compact surface-mount footprint common on dense PCBs. Pin pitch is standard SSOP, so layout tools and land patterns are widely available. No exposed pad to worry about for thermal dissipation — the part runs cool at the rated output currents.","metaTitle":"Nexperia 74HC240DB,118 Octal Inverting Buffer/Line Driver","metaDescription":"Nexperia 74HC240DB,118 octal inverting buffer with 3-state outputs. 2V-6V supply, -40°C to 125°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74HC","Package":"Bulk","Logic Type":"Buffer, Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-SSOP (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"2","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-SSOP","Current - Output High, Low":"7.8mA, 7.8mA","Number of Bits per Element":"4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.26","stockQuantity":0,"priceTiers":[{"qty":1165,"price":"$0.26000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d39351eb418fafa6180edf37671d5ea5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between 74HC240 and 74HC241?","answer":"The 74HC240 is an inverting buffer (the output is the logical inverse of the input), while the 74HC241 is a non-inverting buffer. Both have 3-state outputs and the same pinout, so the choice comes down to whether your bus needs inversion or not. If the board was designed for the 74HC240, swapping in a 74HC241 will invert the signal polarity and cause a logic error."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/74HC240DB118","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/74HC240DB118 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}}