{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY74FCT543TSOC","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CY74FCT543TSOC","canonicalUrl":"https://icboms.com/texas-instruments/CY74FCT543TSOC","factsUrl":"https://icboms.com/api/mcp/products/CY74FCT543TSOC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress Semiconductor 74FCT series CY74FCT543TSOC, 8-bit non-inverting transceiver with 3-state outputs, 4.75V~5.25V supply, 32mA/64mA output drive, -40°C to 85°C, 24-SOIC wide-body package.","salesMarkdown":"## 8-bit bus transceiver for 5V backplanes The Cypress CY74FCT543TSOC is an 8-bit non-inverting transceiver from the 74FCT family, designed for bidirectional data flow on 5V buses. It packs one element with eight bits per element, and the 3-state outputs let multiple devices share a common data line without contention. The 32mA sink and 64mA source drive gives it enough muscle to drive a heavily loaded backplane or a long ribbon cable without external buffers — something the older 74LS parts can't match with their 15mA rating. ## 5V-only supply — plan the rail accordingly The supply range is 4.75V to 5.25V, which means this is a strict 5V part. It won't run from a 3.3V rail, so if your board has migrated to lower voltages, you'll need a separate 5V regulator or a level-shifting transceiver. ## 24-SOIC wide-body — check your footprint The package is a 24-SOIC with 0.295-inch (7.50mm) body width. That's the wide SOIC variant, not the narrow 3.9mm body. If your board layout was done for a narrow SOIC-24, this part won't fit without a footprint change. Surface-mount assembly is standard, and the tube shipping medium is fine for hand-assembly or low-volume production runs. If you're qualifying a new design, there's no urgency to find an alternate for supply continuity.","metaTitle":"CY74FCT543TSOC 74FCT Transceiver, Non-Inverting, 24-SOIC","metaDescription":"CY74FCT543TSOC 8-bit non-inverting transceiver with 3-state outputs. 4.75V-5.25V supply, 32mA/64mA drive, -40°C to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":"74FCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74FCT","Package":"Tube","Logic Type":"Transceiver, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"24-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"24-SOIC","Current - Output High, Low":"32mA, 64mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.73","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.73000","currency":"USD"},{"qty":10,"price":"$1.54500","currency":"USD"},{"qty":25,"price":"$1.46600","currency":"USD"},{"qty":100,"price":"$1.20440","currency":"USD"},{"qty":250,"price":"$1.12584","currency":"USD"},{"qty":500,"price":"$0.99492","currency":"USD"},{"qty":1000,"price":"$0.78546","currency":"USD"},{"qty":2500,"price":"$0.74100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6dcc7966d793a012a1d2ab39fe407c6a.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CY74FCT543TSOC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CY74FCT543TSOC 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}}