{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY74FCT543TSOCT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CY74FCT543TSOCT","canonicalUrl":"https://icboms.com/texas-instruments/CY74FCT543TSOCT","factsUrl":"https://icboms.com/api/mcp/products/CY74FCT543TSOCT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74FCT series CY74FCT543TSOCT, 8-bit non-inverting transceiver, 3-state outputs, 32mA/64mA drive, 4.75-5.25V supply, -40 to 85°C, 24-SOIC wide-body surface-mount package.","salesMarkdown":"## 8-bit bidirectional bus driver — 32 mA sink, 64 mA source The Texas Instruments CY74FCT543TSOCT is an 8-bit non-inverting transceiver from the 74FCT series, with 3-state outputs on both the A and B ports. Output drive is rated 32 mA high, 64 mA low per channel — that asymmetric sink strength is typical for driving capacitive bus loads or long traces on a backplane without external buffers. The 8-bit width matches an 8-bit data bus or a set of control signals that need to be ganged. Single-element (one 8-bit channel) in a 24-SOIC wide-body package — the 7.50 mm body width is the standard SOIC-24 footprint, so it drops into existing PCB layouts for that form factor without a board spin. ## Industrial temp range and field-swap reality No special derating needed for summer attic or cold-start in a northern warehouse. Surface-mount SOIC-24 with 1.27 mm pitch — a standard fine-tip iron and hot-air station can swap it on site if you have the right solder wick. The wide body gives enough clearance between pins to avoid bridging during rework; no lab bench required, just a steady hand and a flux pen. ## Active lifecycle and compliance — no LTB clock ticking Cut Tape works for prototype runs or small-batch repair stock.","metaTitle":"TI CY74FCT543TSOCT 74FCT Transceiver, 32/64mA, 24-SOIC","metaDescription":"Texas Instruments CY74FCT543TSOCT 8-bit non-inverting transceiver, 3-state outputs, 4.75-5.25V supply, -40 to 85°C, 24-SOIC. Active, RoHS3. Available to order.","metaKeywords":null},"attributes":{"series":"74FCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74FCT","Package":"Tape & Reel (TR); Cut Tape (CT)","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":"$1.37","priceTiers":[{"qty":1,"price":"$1.37000","currency":"USD"},{"qty":10,"price":"$1.22800","currency":"USD"},{"qty":25,"price":"$1.16520","currency":"USD"},{"qty":100,"price":"$0.95710","currency":"USD"},{"qty":250,"price":"$0.89464","currency":"USD"},{"qty":500,"price":"$0.79062","currency":"USD"},{"qty":1000,"price":"$0.62418","currency":"USD"},{"qty":2000,"price":"$0.58257","currency":"USD"},{"qty":6000,"price":"$0.55344","currency":"USD"},{"qty":10000,"price":"$0.53263","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6dcc7966d793a012a1d2ab39fe407c6a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY74FCT543TSOCT/alternatives.json"},"ai":{"faq":[{"question":"Will CY74FCT543TSOCT drop into a board that was laid out for SN74ABT2245DW?","answer":"The SN74ABT2245DW is also an 8-bit non-inverting transceiver with 3-state outputs in a 24-SOIC package, but the ABT family runs on a 4.5 V minimum supply versus the 74FCT's 4.75 V. Pinout and footprint are the same SOIC-24 wide-body — it will physically fit, but check the supply rail tolerance on your board. The 74FCT part sinks 64 mA vs the ABT's 32 mA, so bus drive margin is better on the FCT side."},{"question":"What compliance documentation does Texas Instruments provide for CY74FCT543TSOCT?","answer":"ROHS3 compliant per the lifecycle record. Standard TI documentation includes the datasheet, PCN notifications for any process changes, and a material declaration. No AEC-Q100 automotive qualification is listed for this part — it is a commercial/industrial grade device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CY74FCT543TSOCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CY74FCT543TSOCT 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}}