{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9540BDP/Q900J","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"PCA9540BDP-Q900J","canonicalUrl":"https://icboms.com/nxp/PCA9540BDP-Q900J","factsUrl":"https://icboms.com/api/mcp/products/PCA9540BDP%2FQ900J","rawCanonicalId":null},"summary":{"shortDescription":"NXP PCA9540BDP/Q900J 2-channel I²C multiplexer, AEC-Q100 automotive grade, 2.3 V to 5.5 V supply, 8-TSSOP package, surface mount.","salesMarkdown":"## 2-channel I²C bus expander with AEC-Q100 qualification The PCA9540BDP/Q900J is a 2-channel I²C multiplexer from NXP, housed in an 8-TSSOP package. It lets a single I²C master communicate with two downstream buses, each selected via the control register — no extra GPIOs needed for chip-select. ## Supply range and I²C compatibility The pass-gate architecture isolates the downstream bus capacitance from the upstream bus, so each channel can drive its own capacitive load without degrading the master's rise time. The surface-mount profile suits automated assembly lines with standard reflow profiles. ## Active lifecycle and sourcing posture Sourced through authorized and independent distribution channels. RoHS3 compliant.","metaTitle":"PCA9540BDP/Q900J I²C Multiplexer, 2-Ch, AEC-Q100, 8-TSSOP","metaDescription":"PCA9540BDP/Q900J 2-channel I²C multiplexer, AEC-Q100 automotive grade, 2.3-5.5 V supply, 8-TSSOP. Active lifecycle. Sourced and quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Grade":"Automotive","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C","Applications":"2-Channel I²C Multiplexer","Mounting Type":"Surface Mount","Qualification":"AEC-Q100","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.3V ~ 5.5V","Supplier Device Package":"8-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.15","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.15000","currency":"USD"},{"qty":10,"price":"$1.93300","currency":"USD"},{"qty":25,"price":"$1.82320","currency":"USD"},{"qty":100,"price":"$1.55350","currency":"USD"},{"qty":250,"price":"$1.45864","currency":"USD"},{"qty":500,"price":"$1.27632","currency":"USD"},{"qty":1000,"price":"$1.05752","currency":"USD"},{"qty":2500,"price":"$0.98458","currency":"USD"},{"qty":5000,"price":"$0.94812","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0416e5e6e6cbb07c57b84837219808d9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy authentic PCA9540BDP/Q900J?","answer":"The PCA9540BDP/Q900J is sourced through authorized and independent distribution."},{"question":"Is PCA9540BDP/Q900J compatible with 3.3 V I²C?","answer":"Yes."},{"question":"What is the difference between PCA9540BDP and PCA9540BDP/Q900J?","answer":"The /Q900J suffix denotes automotive-grade qualification (AEC-Q100). The base PCA9540BDP is a commercial/industrial-grade variant without that automotive reliability screening. Both share the same 2-channel I²C multiplexer function and 8-TSSOP package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/PCA9540BDP-Q900J","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/PCA9540BDP-Q900J 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}}