{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS138DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS138DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS138DR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS138DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series decoder/demultiplexer, SN74HCS138DR, 1 x 3:8 circuit, 2V-6V supply, 7.8mA output, 16-SOIC surface mount.","salesMarkdown":"## Logic function and parametric fit The SN74HCS138DR is a 3-line to 8-line decoder/demultiplexer from the 74HCS series, containing one independent 1 x 3:8 circuit. It takes a 3-bit binary input and activates one of eight active-low outputs, which is the standard address-decoding function for memory-mapped I/O or chip-select generation in digital systems. Each output can source or sink 7.8 mA, which is sufficient to drive a single TTL load or an LED indicator directly, though a buffer is needed for heavier bus loads. ## Temperature grade and package The supplier device package is 16-SOIC, and the mounting type is surface mount. The narrow-body SOIC footprint is shared across many logic families, so a single PCB layout can accommodate the 74HCS138 alongside older 74HC or 74HCT parts if a design migration is needed.","metaTitle":"TI SN74HCS138DR 3:8 Decoder/Demux, 2V-6V, 16-SOIC","metaDescription":"Texas Instruments SN74HCS138DR decoder/demultiplexer, 1 x 3:8 circuit, 2V-6V supply, -40 to +125°C, 16-SOIC. Active, ROHS3. Request a quote.","metaKeywords":null},"attributes":{"series":"74HCS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Decoder/Demultiplexer","Series":"74HCS","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":"2V ~ 6V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 125°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-SOIC","Current - Output High, Low":"7.8mA, 7.8mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.45000","currency":"USD"},{"qty":10,"price":"$0.36400","currency":"USD"},{"qty":25,"price":"$0.33280","currency":"USD"},{"qty":100,"price":"$0.24760","currency":"USD"},{"qty":250,"price":"$0.22440","currency":"USD"},{"qty":500,"price":"$0.18572","currency":"USD"},{"qty":1000,"price":"$0.13928","currency":"USD"},{"qty":2500,"price":"$0.12768","currency":"USD"},{"qty":5000,"price":"$0.11994","currency":"USD"},{"qty":12500,"price":"$0.11220","currency":"USD"},{"qty":25000,"price":"$0.10950","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/aa7682f3534288dec4bb6e4e9d7e5ffa.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS138DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS138DR 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}}