{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCT138PWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCT138PWR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCT138PWR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCT138PWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series, Decoder/Demultiplexer, 1 x 3:8, 4.5V ~ 5.5V single supply, -40°C ~ 85°C, surface mount 16-TSSOP, Tape & Reel.","salesMarkdown":"## What this 1-of-8 decoder does on your board The SN74HCT138PWR: The -40°C to 85°C operating range covers industrial control cabinets, telecom line cards, and outdoor equipment enclosures. Not rated for automotive under-hood or extended temperature beyond 85°C. The 16-TSSOP footprint (4.40 mm body width) fits tight PCB layouts where a wider SOIC-16 would crowd adjacent traces. ## Lifecycle and sourcing ROHS3 compliant.","metaTitle":"SN74HCT138PWR 74HCT Decoder/Demultiplexer 1x3:8 16-TSSOP","metaDescription":"TI SN74HCT138PWR 74HCT 1-of-8 decoder/demultiplexer. 4.5V–5.5V supply, 4mA output drive, -40°C to 85°C. Active production, ROHS3.","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-TSSOP (0.173\\\", 4.40mm 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-TSSOP","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":2000,"price":"$0.16430","currency":"USD"},{"qty":6000,"price":"$0.15370","currency":"USD"},{"qty":10000,"price":"$0.15000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a5ee1400ba9c51a0c770590661570d16.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SN74HCT138PWR RoHS compliant?","answer":"Yes, ROHS3 compliant. No exemption expiry to track."},{"question":"Can SN74HCT138PWR be replaced by 74HC138?","answer":"The 74HC138 is the HC (high-speed CMOS) equivalent with the same pinout and function, but HC inputs have different threshold levels than HCT. HCT is TTL-compatible; HC is CMOS-threshold. If your driving logic is 5 V TTL, stay with HCT. If the driver is 5 V CMOS, HC works. Verify input thresholds against your upstream logic before substituting."},{"question":"What is the difference between SN74HCT138PWR and SN74HCT138D?","answer":"The SN74HCT138D is the same die in a SOIC-16 package (D suffix). The PWR suffix is the 16-TSSOP variant. Electrical specs are identical; only the package footprint differs. The TSSOP saves about 2.5 mm of board width per axis versus SOIC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCT138PWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCT138PWR 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}}