{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9543APWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCA9543APWR","canonicalUrl":"https://icboms.com/texas-instruments/PCA9543APWR","factsUrl":"https://icboms.com/api/mcp/products/PCA9543APWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCA9543APWR I²C/SMBus translating switch, 14-TSSOP package, 2.3V~5.5V supply, Tape & Reel / Cut Tape.","salesMarkdown":"## I²C/SMBus translating switch in 14-TSSOP The Texas Instruments PCA9543APWR is a translating switch designed to multiplex I²C or SMBus signals between multiple buses, operating from a 2.3V to 5.5V supply rail. ## Supply voltage and bus compatibility The I²C and SMBus interface support means the switch can be used in mixed-protocol systems where both standards coexist on the same backplane.","metaTitle":"TI PCA9543APWR I²C/SMBus Translating Switch, 14-TSSOP","metaDescription":"Texas Instruments PCA9543APWR I²C/SMBus translating switch in 14-TSSOP, 2.3V~5.5V supply. Active, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C, SMBus","Applications":"Translating Switch","Mounting Type":"Surface Mount","Package / Case":"14-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.3V ~ 5.5V","Supplier Device Package":"14-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.66","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.66000","currency":"USD"},{"qty":10,"price":"$1.48900","currency":"USD"},{"qty":25,"price":"$1.40440","currency":"USD"},{"qty":100,"price":"$1.19660","currency":"USD"},{"qty":250,"price":"$1.12360","currency":"USD"},{"qty":500,"price":"$0.98316","currency":"USD"},{"qty":1000,"price":"$0.81461","currency":"USD"},{"qty":2000,"price":"$0.79500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a6a195b6e9438baed50c5c65ed6a9915.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for PCA9543APWR?","answer":"Submit a request against your BOM quantity for a current quote through our sourcing desk."},{"question":"What is PCA9543APWR's listed interface?","answer":"The PCA9543APWR uses an I²C and SMBus interface, functioning as a translating switch between buses."},{"question":"What compliance documentation does Texas Instruments provide for PCA9543APWR?","answer":"Texas Instruments provides ROHS3 compliance documentation for the PCA9543APWR. No UL or IEC certifications are listed in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCA9543APWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCA9543APWR 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}}