{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS138QWBQBRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS138QWBQBRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS138QWBQBRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS138QWBQBRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series automotive decoder/demultiplexer, SN74HCS138QWBQBRQ1, 1 x 3:8 circuit, 2V-6V supply, 16-WFQFN exposed pad, -40°C to 125°C, AEC-Q100 Grade 1.","salesMarkdown":"## Automotive 3:8 decoder/demultiplexer for the 2-6V bus The Texas Instruments SN74HCS138QWBQBRQ1 is a single 3-line to 8-line decoder/demultiplexer in the 74HCS family, qualified to AEC-Q100 Grade 1 for automotive deployments. Operating from 2V to 6V with a -40°C to 125°C temperature range, it sinks or sources 7.8 mA per output — enough to drive the logic inputs of downstream ECUs or relay coils through a buffer stage. The 16-WFQFN exposed pad package (2.5x3.5 mm body) keeps the board footprint compact for space-constrained automotive control modules. ## What AEC-Q100 Grade 1 means for the BOM AEC-Q100 Grade 1 qualification certifies the device for -40°C to +125°C ambient — the full under-hood temperature band. An engine control unit or transmission module that sees 105°C on a summer grade still has margin to the 125°C ceiling. The single-supply 2-6V range spans the 3.3V and 5V automotive logic rails without a level translator — the same BOM position works across different ECU voltage domains. ## Lifecycle and sourcing posture Sourced through authorized distribution channels; availability and current pricing confirmed at RFQ against the BOM quantity.","metaTitle":"SN74HCS138QWBQBRQ1 74HCS Decoder/Demux, 2-6V, AEC-Q100","metaDescription":"TI SN74HCS138QWBQBRQ1 automotive 3:8 decoder/demux, 2-6V supply, -40 to 125°C, AEC-Q100 Grade 1. Active production, quoted to order.","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":"16-WFQFN Exposed Pad","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-WQFN (2.5x3.5)","Current - Output High, Low":"7.8mA, 7.8mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.75","priceTiers":[{"qty":1,"price":"$0.75000","currency":"USD"},{"qty":10,"price":"$0.65700","currency":"USD"},{"qty":25,"price":"$0.61680","currency":"USD"},{"qty":100,"price":"$0.50340","currency":"USD"},{"qty":250,"price":"$0.46756","currency":"USD"},{"qty":500,"price":"$0.39794","currency":"USD"},{"qty":1000,"price":"$0.31835","currency":"USD"},{"qty":3000,"price":"$0.28851","currency":"USD"},{"qty":6000,"price":"$0.26861","currency":"USD"},{"qty":15000,"price":"$0.25866","currency":"USD"},{"qty":30000,"price":"$0.24871","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a6904da1e6f844cadfca0caa62163c34.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HCS138QWBQBRQ1/alternatives.json"},"ai":{"faq":[{"question":"What is the SN74HCS138QWBQBRQ1 used for?","answer":"It is a 3-line to 8-line decoder/demultiplexer — it takes a 3-bit binary address and selects one of eight active-low outputs. Common in automotive address decoding, memory chip selects, and demultiplexing sensor data lines."},{"question":"How do I get current pricing and availability for SN74HCS138QWBQBRQ1?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS138QWBQBRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS138QWBQBRQ1 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}}