{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74CBT3257D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74CBT3257D","canonicalUrl":"https://icboms.com/texas-instruments/SN74CBT3257D","factsUrl":"https://icboms.com/api/mcp/products/SN74CBT3257D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74CBT series SN74CBT3257D, Multiplexer/Demultiplexer, 4 x 2:1, 1 circuit, 4.5V to 5.5V, -40°C to 85°C, Surface Mount 16-SOIC.","salesMarkdown":"## Active 4 x 2:1 bus multiplexer for 5V logic systems The Texas Instruments SN74CBT3257D is a 4 x 2:1 multiplexer/demultiplexer from the 74CBT family, packaged in a 16-SOIC narrow body. It routes one of two 4-bit data sources to a common output under a single select line — the classic function for bus sharing, data-path steering, or signal gating in 5V digital systems. ## Supply rail and temperature — the fit decisions The 4.5V minimum supply is the hard floor: if your 5V rail droops below that during brownout or cold-crank, the switch's internal logic may not hold the correct state. The 5.5V ceiling is the standard 5V ±10% limit, so no extra headroom for a 5% tolerance rail with ripple. ## 16-SOIC narrow body — what the footprint expects The supplier device package field confirms 16-SOIC, so the land pattern is the same JEDEC MS-012 variation used by hundreds of logic and interface parts. Surface-mount only; no through-hole variant in this order code. ## Lifecycle and compliance — no sourcing surprises","metaTitle":"SN74CBT3257D 74CBT 4 x 2:1 Multiplexer/Demultiplexer","metaDescription":"Texas Instruments SN74CBT3257D 4 x 2:1 multiplexer/demultiplexer in 16-SOIC. Single-supply 4.5V–5.5V, industrial temp -40°C to 85°C. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74CBT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Multiplexer/Demultiplexer","Series":"74CBT","Circuit":"4 x 2:1","Package":"Tube","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.96","priceTiers":[{"qty":1,"price":"$0.96000","currency":"USD"},{"qty":10,"price":"$0.85700","currency":"USD"},{"qty":25,"price":"$0.81320","currency":"USD"},{"qty":100,"price":"$0.66800","currency":"USD"},{"qty":250,"price":"$0.62444","currency":"USD"},{"qty":500,"price":"$0.55184","currency":"USD"},{"qty":1000,"price":"$0.43566","currency":"USD"},{"qty":2500,"price":"$0.41100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9891342fdb2f177c221940379a056d47.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74CBT3257D/alternatives.json"},"ai":{"faq":[{"question":"Is SN74CBT3257D active or obsolete?","answer":"ROHS3 compliant. No successor has been announced."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74CBT3257D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74CBT3257D 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}}