{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCT138DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCT138DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCT138DR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCT138DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series decoder/demultiplexer, SN74HCT138DR, 1 x 3:8 circuit, 4.5V-5.5V supply, 16-SOIC surface mount package.","salesMarkdown":"## 1 x 3:8 decoder/demultiplexer in 16-SOIC The SN74HCT138DR is a single 3-to-8 line decoder/demultiplexer from the 74HCT logic family, packaged in a 16-SOIC (0.154\", 3.90mm width) surface-mount package. It accepts a 3-bit binary address input and activates one of eight mutually exclusive active-low outputs, making it a standard building block for memory address decoding, data routing, and chip-select generation in 5V digital systems. ## Supply range and output drive The 4mA source and 4mA sink capability at the outputs is modest — sufficient for driving CMOS logic inputs or low-power loads, but not designed for high-fanout or LED drive without a buffer. For a decoder handling address lines in a 5V control board, the 74HCT family's TTL-compatible inputs simplify interfacing with legacy 5V logic without external level translation.","metaTitle":"SN74HCT138DR Texas Instruments 74HCT Decoder/Demux, 1x3:8","metaDescription":"Texas Instruments SN74HCT138DR decoder/demultiplexer, 1 x 3:8 circuit, 4.5V-5.5V supply, -40°C to 85°C, 16-SOIC. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Decoder/Demultiplexer","Series":"74HCT","Circuit":"1 x 3:8","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-SOIC","Current - Output High, Low":"4mA, 4mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.46","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.46000","currency":"USD"},{"qty":10,"price":"$0.39800","currency":"USD"},{"qty":25,"price":"$0.37120","currency":"USD"},{"qty":100,"price":"$0.29680","currency":"USD"},{"qty":250,"price":"$0.27560","currency":"USD"},{"qty":500,"price":"$0.23320","currency":"USD"},{"qty":1000,"price":"$0.18020","currency":"USD"},{"qty":2500,"price":"$0.16430","currency":"USD"},{"qty":5000,"price":"$0.15370","currency":"USD"},{"qty":12500,"price":"$0.15000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a5ee1400ba9c51a0c770590661570d16.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCT138DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCT138DR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}