{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LV27AD","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LV27AD","canonicalUrl":"https://icboms.com/texas-instruments/SN74LV27AD","factsUrl":"https://icboms.com/api/mcp/products/SN74LV27AD","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LV series NOR Gate, SN74LV27AD, Triple 3-Input, 2V to 5.5V supply, 12 mA output, 7.9 ns propagation delay at 5V/50pF, -40°C to 85°C, 14-SOIC.","salesMarkdown":"## Triple 3-input NOR gate in 74LV — why the 2V–5.5V range matters The Texas Instruments SN74LV27AD packs three independent 3-input NOR gates into a single 14-SOIC package, running from a 2V to 5.5V supply. That supply window means it works directly with 3.3V microcontrollers and legacy 5V logic without a level translator — a common gotcha when mixing voltage domains on the same board. At 5V and 50 pF load the maximum propagation delay is 7.9 ns. That puts the SN74LV27AD in the same timing class as the 74LVC family, so it fits into existing 5V NOR-gate sockets without re-tuning the hold-time budget. At 3.3V the delay will be slightly longer — budget about 11 ns typical — still fine for SPI clock rates up to 20 MHz or address decode in a moderate-speed memory interface. The quiescent current is a maximum 20 µA across the whole range, so it won't load the supply rail in battery-backed or always-on sections. That means it is still in regular production, no last-time-buy notice, and no pressure to stockpile or find a replacement. The 74LV series is a mature low-voltage logic family with broad distribution support, so lead times tend to be short — confirm current availability at quote time.","metaTitle":"SN74LV27AD Triple 3-Input NOR Gate, 74LV, 14-SOIC","metaDescription":"Texas Instruments SN74LV27AD triple 3-input NOR gate in 14-SOIC. 2V–5.5V supply, 7.9 ns propagation delay at 5V, 50 pF. Industrial temp -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"74LV","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74LV","Package":"Tube","Logic Type":"NOR Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"3","Voltage - Supply":"2V ~ 5.5V","Number of Circuits":"3","Operating Temperature":"-40°C ~ 85°C","Input Logic Level - Low":"0.5V","Supplier Device Package":"14-SOIC","Input Logic Level - High":"1.5V","Current - Quiescent (Max)":"20 µA","Current - Output High, Low":"12mA, 12mA","Max Propagation Delay @ V, Max CL":"7.9ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.30000","currency":"USD"},{"qty":10,"price":"$1.16000","currency":"USD"},{"qty":25,"price":"$1.10120","currency":"USD"},{"qty":100,"price":"$0.90450","currency":"USD"},{"qty":250,"price":"$0.84552","currency":"USD"},{"qty":500,"price":"$0.74720","currency":"USD"},{"qty":1000,"price":"$0.58989","currency":"USD"},{"qty":2500,"price":"$0.55650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/aa22a67682705cb9a1804cadb975d0e9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does SN74LV27AD work with 3.3V?","answer":"Yes. The supply voltage range is 2V to 5.5V, so 3.3V is right in the middle. At 3.3V the input logic thresholds are 0.5V low / 1.5V high, which is compatible with standard 3.3V CMOS and LVTTL outputs. Propagation delay at 3.3V will be slightly longer than the 7.9 ns spec at 5V — expect roughly 11 ns typical."},{"question":"Is SN74LV27AD RoHS compliant?","answer":"Yes, it is ROHS3 compliant per the Texas Instruments listing."},{"question":"What is the difference between SN74LV27AD and SN74LV27ADG4?","answer":"The two parts are functionally identical — both are triple 3-input NOR gates in 14-SOIC with the same 2V–5.5V supply, 7.9 ns delay, and industrial temperature range. The G4 suffix historically indicated a green (RoHS) package variant; TI has since consolidated the marking. For new designs either order code works; the AD is the more commonly stocked variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LV27AD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LV27AD 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}}