{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS238DYYR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS238DYYR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS238DYYR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS238DYYR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series, Decoder/Demultiplexer, 1 x 3:8, 2V to 6V supply, -40°C to 125°C, Automotive AEC-Q100, Surface Mount SOT-23-16 Thin.","salesMarkdown":"## What this 3:8 decoder does on the board The Texas Instruments SN74HCS238DYYR is a single 3-to-8 line decoder/demultiplexer from the 74HCS family, built for address decoding, data routing, or chip-select generation in automotive and industrial logic chains. It takes a 3-bit binary input and asserts one of eight active-high outputs, with three enable inputs (two active-low, one active-high) for cascading without external gates. The part is AEC-Q100 qualified and rated over the full -40°C to 125°C temperature range, so it handles under-hood vibration and thermal cycling without derating concerns. ## Supply and output drive — what the 2V to 6V range buys you The supply range of 2V to 6V covers both 3.3V and 5V logic rails, which means this decoder can sit directly on a mixed-voltage backplane without a level translator. Output drive is symmetric at 7.8 mA source and sink per channel — enough to drive a single CMOS load or a low-power LED indicator, but not a relay coil or bus buffer. For higher fan-out, plan a line driver after the decoder.","metaTitle":"SN74HCS238DYYR Decoder/Demultiplexer, 1 x 3:8","metaDescription":"TI SN74HCS238DYYR 1 x 3:8 decoder/demultiplexer, AEC-Q100, 2V-6V supply, -40°C to 125°C, SOT-23-THIN.","metaKeywords":null},"attributes":{"series":"74HCS","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Decoder/Demultiplexer","Grade":"Automotive","Series":"74HCS","Circuit":"1 x 3:8","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Qualification":"AEC-Q100","Package / Case":"SOT-23-16 Thin, SOT-23 Variant","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-SOT-23-THIN","Current - Output High, Low":"7.8mA, 7.8mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.49","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.49000","currency":"USD"},{"qty":10,"price":"$0.39400","currency":"USD"},{"qty":25,"price":"$0.36040","currency":"USD"},{"qty":100,"price":"$0.26830","currency":"USD"},{"qty":250,"price":"$0.24312","currency":"USD"},{"qty":500,"price":"$0.20120","currency":"USD"},{"qty":1000,"price":"$0.15089","currency":"USD"},{"qty":3000,"price":"$0.13832","currency":"USD"},{"qty":6000,"price":"$0.12994","currency":"USD"},{"qty":15000,"price":"$0.12155","currency":"USD"},{"qty":30000,"price":"$0.11149","currency":"USD"},{"qty":75000,"price":"$0.10730","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cd6a74f076b815732c8337260582c334.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can SN74HCS238DYYR be used with a 5V supply?","answer":"Yes, the supply range is 2V to 6V, so 5V operation is within spec. The outputs swing rail-to-rail, compatible with 5V CMOS logic."},{"question":"Is SN74HCS238DYYR compatible with 74HC238?","answer":"Functionally yes — both are 3:8 decoders with the same truth table and enable logic. The 74HCS variant adds automotive qualification (AEC-Q100) and the wider -40°C to 125°C temperature range. Pinout and footprint may differ; verify the SOT-23-THIN package against your board layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS238DYYR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS238DYYR 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}}