{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY74FCT2543CTSOC","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CY74FCT2543CTSOC","canonicalUrl":"https://icboms.com/texas-instruments/CY74FCT2543CTSOC","factsUrl":"https://icboms.com/api/mcp/products/CY74FCT2543CTSOC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress 74FCT series CY74FCT2543CTSOC, 8-bit Transceiver, Non-Inverting, 3-State outputs, 4.75V~5.25V supply, -40°C to 85°C, 24-SOIC (0.295\", 7.50mm Width), Tube.","salesMarkdown":"## 8-bit bus transceiver for 5V backplanes The Cypress CY74FCT2543CTSOC is an 8-bit non-inverting transceiver with 3-state outputs from the 74FCT logic family. It operates from a 4.75V to 5.25V supply and is housed in a 24-SOIC wide-body package (0.295\" body width). Output drive is specified at 15 mA source and 12 mA sink per channel, which gives enough headroom to drive a standard 5V backplane bus or a bank of LED indicators without external buffers. ## Supply rail and logic compatibility The 4.75V to 5.25V supply range means this part is a strict 5V-logic device. It is not rated for 3.3V operation — the minimum supply is 4.75V, so running it from a 3.3V rail would violate the guaranteed operating conditions. If the rest of the board is 3.3V, consider a 5V-tolerant transceiver like the SN74LVTH16245ADGVR (2.7V supply) or a level-shifting buffer. The non-inverting data path and 3-state outputs allow bidirectional bus connection with direction control (DIR) and output enable (OE) pins typical of the 74FCT2543 function. The single-element, 8-bit width matches a byte-wide data bus or control register bank. ## Lifecycle and sourcing posture For production BOMs this means no near-term obsolescence risk.","metaTitle":"CY74FCT2543CTSOC 74FCT Transceiver, Non-Inverting, 24-SOIC","metaDescription":"CY74FCT2543CTSOC 74FCT 8-bit transceiver, 3-state outputs, 4.75V~5.25V supply, -40°C to 85°C, 24-SOIC. 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":"15mA, 12mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.93","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.93000","currency":"USD"},{"qty":10,"price":"$0.83500","currency":"USD"},{"qty":25,"price":"$0.79240","currency":"USD"},{"qty":100,"price":"$0.65090","currency":"USD"},{"qty":250,"price":"$0.60848","currency":"USD"},{"qty":500,"price":"$0.53774","currency":"USD"},{"qty":1000,"price":"$0.42453","currency":"USD"},{"qty":2500,"price":"$0.40050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/537bd0afd0ccba7bce55e42349687c9a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY74FCT2543CTSOC?","answer":"The CY74FCT2543CTSOC is available to order through independent distribution. Submit an RFQ for current availability and pricing — each quote is confirmed at time of request."},{"question":"Is CY74FCT2543CTSOC compatible with 3.3V logic?","answer":"No. The supply voltage range is 4.75V to 5.25V, so this part is designed for 5V-only operation. It cannot be run from a 3.3V rail. For 3.3V systems, consider a 2.7V to 3.6V transceiver such as the SN74LVTH16245ADGVR."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CY74FCT2543CTSOC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CY74FCT2543CTSOC 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}}