{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74CBT3245CPW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74CBT3245CPW","canonicalUrl":"https://icboms.com/texas-instruments/SN74CBT3245CPW","factsUrl":"https://icboms.com/api/mcp/products/SN74CBT3245CPW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74CBT series Bus Switch, 8 x 1:1 circuit, Single Supply 4V to 5.5V, Surface Mount, 20-TSSOP, -40°C to 85°C.","salesMarkdown":"## Bus switch for 5V signal paths The SN74CBT3245CPW: It connects or isolates digital signal paths under the control of a single output-enable pin, with the switch pass transistor presenting minimal propagation delay. The 4V to 5.5V supply window means this switch is designed for 5V nominal rails, not 3.3V or lower. If the design runs a 3.3V bus, the switch's on-state resistance and signal swing will not match the datasheet's characterized performance — a 5V-tolerant bus switch from the 74CBTLV or 74LVC family would be the correct tier. The single-supply sourcing also simplifies the power tree: no separate VCC and VDD rails to route. Housed in a 20-TSSOP (4.40 mm width) package, the SN74CBT3245CPW occupies a compact footprint for dense PCB layouts. The active status removes any urgency to qualify a drop-in alternate today, but maintaining a second-source qualification on a functionally equivalent 8-bit bus switch in the same package is standard supply-chain hygiene for production builds.","metaTitle":"SN74CBT3245CPW Bus Switch, 8 x 1:1, 4V-5.5V, 20-TSSOP","metaDescription":"Texas Instruments SN74CBT3245CPW bus switch, 8 x 1:1 circuit, 4V to 5.5V supply, -40°C to 85°C, 20-TSSOP. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74CBT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Bus Switch","Series":"74CBT","Circuit":"8 x 1:1","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4V ~ 5.5V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"20-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.34","priceTiers":[{"qty":1,"price":"$1.34000","currency":"USD"},{"qty":10,"price":"$1.20100","currency":"USD"},{"qty":25,"price":"$1.13960","currency":"USD"},{"qty":100,"price":"$0.93620","currency":"USD"},{"qty":250,"price":"$0.87512","currency":"USD"},{"qty":500,"price":"$0.77338","currency":"USD"},{"qty":1000,"price":"$0.61056","currency":"USD"},{"qty":2500,"price":"$0.57600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/26997201781d317ac9c06e754a40a56f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74CBT3245CPW/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74CBT3245CPW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74CBT3245CPW 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}}