{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LVC138APWT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LVC138APWT","canonicalUrl":"https://icboms.com/texas-instruments/SN74LVC138APWT","factsUrl":"https://icboms.com/api/mcp/products/SN74LVC138APWT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74LVC138APWT, 74LVC series, 1-of-8 Decoder/Demultiplexer, 1 x 3:8 circuit, 1.65V to 3.6V supply, 24mA output drive, -40°C to 85°C, 16-TSSOP package, Surface Mount, Active, ROHS3 Compliant.","salesMarkdown":"## What this 3:8 decoder does on the board The SN74LVC138APWT is a single 1-of-8 decoder/demultiplexer from TI's 74LVC family. It takes a 3-bit binary address on its select inputs and asserts one of eight active-low outputs. The three enable inputs (two active-low, one active-high) give you a gating option for cascading or chip-select generation without extra glue logic. Each output can sink or source 24 mA, enough to drive an LED indicator, a small relay coil through a transistor, or the enable pin on a regulator without a buffer. Rated for -40°C to 85°C, so it fits industrial control cabinets, outdoor telecom pedestals, and factory-floor I/O modules where the ambient stays below the 85°C mark. ## Package and footprint Housed in a 16-TSSOP (4.40 mm body width). Surface-mount only — no through-hole variant in this order code.","metaTitle":"SN74LVC138APWT 3:8 Decoder/Demux, 1.65V-3.6V, 16-TSSOP","metaDescription":"TI SN74LVC138APWT 1-of-8 decoder/demultiplexer, 74LVC series, 1.65V to 3.6V supply, 24mA output drive, -40°C to 85°C, 16-TSSOP. Active, RoHS3.","metaKeywords":null},"attributes":{"series":"74LVC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Decoder/Demultiplexer","Series":"74LVC","Circuit":"1 x 3:8","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.65V ~ 3.6V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-TSSOP","Current - Output High, Low":"24mA, 24mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.31","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.31000","currency":"USD"},{"qty":10,"price":"$1.16900","currency":"USD"},{"qty":25,"price":"$1.11000","currency":"USD"},{"qty":100,"price":"$0.91180","currency":"USD"},{"qty":250,"price":"$0.85236","currency":"USD"},{"qty":500,"price":"$0.75324","currency":"USD"},{"qty":1250,"price":"$0.59466","currency":"USD"},{"qty":2500,"price":"$0.56100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/66ca613127036a0eebf166ae2df6b3a5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SN74LVC138APWT compatible with 3.3V?","answer":"Yes, 3.3V is within the 1.65V to 3.6V supply range. The 24 mA output drive at 3.3V is sufficient for standard 3.3V CMOS inputs."},{"question":"What is the closest functional equivalent to SN74LVC138APWT?","answer":"The SN74LS348N is a different device class — it is an 8:3 priority encoder in a through-hole package with a 0°C to 70°C range, not a direct pin-for-pin substitute. For a 3:8 decoder in 74LVC, stick with this order code or the 74LVC138A in other package options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LVC138APWT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LVC138APWT 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}}