{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74CB3Q3345PW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74CB3Q3345PW","canonicalUrl":"https://icboms.com/texas-instruments/SN74CB3Q3345PW","factsUrl":"https://icboms.com/api/mcp/products/SN74CB3Q3345PW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74CB series Bus Switch, 8 x 1:1 circuit, 20-TSSOP package, 2.3V ~ 3.6V single supply, -40°C ~ 85°C operating temperature, ROHS3 compliant.","salesMarkdown":"## 8-bit bus switch in 20-TSSOP The SN74CB3Q3345PW is an 8-bit bus switch from Texas Instruments' 74CB series, configured as 8 x 1:1 SPST switches in a single 20-TSSOP package. It provides a low on-state resistance path for digital or analog signals, with the switch enabling and disabling controlled by the output enable (OE) pin. Housed in a 20-TSSOP (0.173\", 4.40 mm width) surface-mount package, the SN74CB3Q3345PW uses a standard 0.65 mm pitch footprint. The thin-shrink small-outline profile keeps the seated height low, which matters for mezzanine or dense backplane cards where component clearance is tight. The tube packaging is typical for prototype and low-volume builds; for reeled tape-and-reel quantities, check the ordering options at RFQ time. For BOM hedging or multi-source strategies, the 74CB family includes functionally similar bus switches in the same package; parametric differences (on-resistance, bandwidth, supply range) should be verified against the design's signal integrity budget.","metaTitle":"SN74CB3Q3345PW Bus Switch, 8 x 1:1, 20-TSSOP","metaDescription":"Texas Instruments SN74CB3Q3345PW bus switch, 8 x 1:1 circuit, 2.3-3.6V supply, -40 to 85°C, 20-TSSOP. Active production, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":"74CB","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Bus Switch","Series":"74CB","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":"2.3V ~ 3.6V","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","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.34000","currency":"USD"},{"qty":10,"price":"$1.19800","currency":"USD"},{"qty":25,"price":"$1.13680","currency":"USD"},{"qty":100,"price":"$0.93380","currency":"USD"},{"qty":250,"price":"$0.87284","currency":"USD"},{"qty":500,"price":"$0.77136","currency":"USD"},{"qty":1000,"price":"$0.60897","currency":"USD"},{"qty":2500,"price":"$0.57450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1bfcac204b626744af6a4431cbbf809e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to SN74CB3Q3345PW in this Discrete Semiconductors family?","answer":"Within the 74CB series, other 8-bit bus switches in the 20-TSSOP package share the same footprint and pinout. The key differentiator is the on-resistance and bandwidth; the SN74CB3Q3345PW is a 3.3 V-optimized variant. Verify the specific R_on and channel capacitance against your signal path before substituting."},{"question":"What compliance documentation does Texas Instruments provide for SN74CB3Q3345PW?","answer":"Texas Instruments provides ROHS3 compliance certification for the SN74CB3Q3345PW. The part is lead-free and meets the EU RoHS directive requirements. Additional documentation such as material declaration and REACH statements are available from TI's product page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74CB3Q3345PW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74CB3Q3345PW when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}