{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY74FCT245ATSOC","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CY74FCT245ATSOC","canonicalUrl":"https://icboms.com/texas-instruments/CY74FCT245ATSOC","factsUrl":"https://icboms.com/api/mcp/products/CY74FCT245ATSOC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress 74FCT series, CY74FCT245ATSOC, 8-bit non-inverting transceiver, 3-state outputs, 4.75V~5.25V supply, 32mA/64mA drive, -40°C to 85°C, 20-SOIC wide-body package.","salesMarkdown":"## Bus transceiver for 5V backplanes and memory interfaces The Cypress CY74FCT245ATSOC is an 8-bit non-inverting bus transceiver from the 74FCT family, designed for bidirectional data flow between two 5V buses. It integrates one 8-bit element with 3-state outputs on both ports, letting you isolate or connect bus segments under a single direction-control signal. The part operates from a 4.75V to 5.25V supply rail and delivers 32mA source, 64mA sink per output — enough drive for heavily loaded backplanes, memory address/data buses, or industrial control links without external buffers. ## What the drive current and supply voltage mean for your BOM The 32mA source / 64mA sink rating is the headline selection parameter. At 64mA sink, this transceiver can drive a full 8-bit bus with multiple loads while maintaining valid logic levels — think memory banks, peripheral buses, or parallel data links in industrial controllers. The 4.75V minimum supply means this is a pure 5V part; it will not operate at 3.3V. If your design runs mixed-voltage logic, you need a level-shifting transceiver like the 74LVTH series (2.7V supply) instead. ## Industrial temperature grade — where it goes The commercial-grade 0°C to 70°C alternative (e.g., SN74LS645-1N) would not survive those conditions. The 20-SOIC wide-body package (7.50mm width) is the footprint — verify your PCB land pattern matches the wider body, not the narrow SOIC-20.","metaTitle":"CY74FCT245ATSOC 74FCT Transceiver, 8-Bit, 20-SOIC","metaDescription":"CY74FCT245ATSOC 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":"20-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":"20-SOIC","Current - Output High, Low":"32mA, 64mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.13","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.13000","currency":"USD"},{"qty":10,"price":"$1.00700","currency":"USD"},{"qty":25,"price":"$0.95560","currency":"USD"},{"qty":100,"price":"$0.78500","currency":"USD"},{"qty":250,"price":"$0.73384","currency":"USD"},{"qty":500,"price":"$0.64850","currency":"USD"},{"qty":1000,"price":"$0.51198","currency":"USD"},{"qty":2500,"price":"$0.48300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/80df8a6558212cd30294a73b59f1ecdb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional equivalent to the CY74FCT245ATSOC?","answer":"The closest functional peer is the SN74ABT2245DW from the 74ABT family — same 8-bit non-inverting transceiver function, same 20-SOIC wide-body package, same industrial temperature range, and comparable 32mA output drive. The key difference is the supply voltage: the 74ABT variant is specified at 4.5V minimum versus the 74FCT's 4.75V minimum. Verify timing margins if swapping, but the pinout and footprint are compatible."},{"question":"Does the CY74FCT245ATSOC work with 3.3V logic?","answer":"No. The CY74FCT245ATSOC requires a 4.75V to 5.25V supply rail. It is not specified for 3.3V operation. For mixed-voltage or 3.3V buses, consider the 74LVTH series transceivers (2.7V supply)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CY74FCT245ATSOC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CY74FCT245ATSOC 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}}