{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74CBT3257CPW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74CBT3257CPW","canonicalUrl":"https://icboms.com/texas-instruments/SN74CBT3257CPW","factsUrl":"https://icboms.com/api/mcp/products/SN74CBT3257CPW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74CBT series SN74CBT3257CPW multiplexer/demultiplexer, 4 x 2:1 circuit, single 4.5V to 5.5V supply, surface mount 16-TSSOP package, -40°C to 85°C operating temperature.","salesMarkdown":"## What this 4 x 2:1 multiplexer/demultiplexer does on the board The Texas Instruments SN74CBT3257CPW is a single-supply 4 x 2:1 multiplexer/demultiplexer from the 74CBT logic family. It routes one of two 4-bit data sources to a common output, or splits a single 4-bit bus into two paths, depending on the direction. The select line chooses which input pair connects through. This is a straightforward digital switch — no level translation, no latching — just FET switches that pass 5V logic signals with low on-resistance. ## Supply rail and temperature — where it fits Runs from a single 4.5V to 5.5V supply, so it lives comfortably on a 5V rail. The -40°C to 85°C industrial temperature range covers most factory-floor, outdoor telecom, and motor-drive environments. No extended automotive temp here, but for a 5V backplane or control-card mux, this is the right grade. ## Package and footprint Housed in a 16-TSSOP (4.40mm width) surface-mount package. The 0.173\" body pitch is standard for this density. No thermal pad to worry about — the package dissipation is modest for a 4:1 mux. The supplier device package is also 16-TSSOP, so the footprint is unambiguous. ## Lifecycle and sourcing reality This part is a standard catalog item in the 74CBT family, so it is straightforward to source through independent distribution.","metaTitle":"SN74CBT3257CPW TI 74CBT Mux/Demux, 4 x 2:1, 16-TSSOP","metaDescription":"SN74CBT3257CPW from TI is a 4 x 2:1 multiplexer/demultiplexer in the 74CBT series. Single 4.5V-5.5V supply, -40°C to 85°C, 16-TSSOP. Active, available to order.","metaKeywords":null},"attributes":{"series":"74CBT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"Multiplexer/Demultiplexer","Series":"74CBT","Circuit":"4 x 2:1","Package":"Tube","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.32","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.32000","currency":"USD"},{"qty":10,"price":"$1.17900","currency":"USD"},{"qty":25,"price":"$1.11880","currency":"USD"},{"qty":100,"price":"$0.91910","currency":"USD"},{"qty":250,"price":"$0.85920","currency":"USD"},{"qty":500,"price":"$0.75928","currency":"USD"},{"qty":1000,"price":"$0.59943","currency":"USD"},{"qty":2500,"price":"$0.56550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/956b66146765e31f2940b89070c992de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SN74CBT3257CPW and SN74CBT3257CPWR?","answer":"The SN74CBT3257CPW ships in Tube packaging, while the SN74CBT3257CPWR ships in Tape & Reel. The die, the 16-TSSOP package, and the electrical specifications are identical. Choose the reel variant for automated pick-and-place assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74CBT3257CPW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74CBT3257CPW 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}}