{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY74FCT821ATSOC","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CY74FCT821ATSOC","canonicalUrl":"https://icboms.com/texas-instruments/CY74FCT821ATSOC","factsUrl":"https://icboms.com/api/mcp/products/CY74FCT821ATSOC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress 74FCT series D-Type flip-flop, CY74FCT821ATSOC, 10-bit, positive-edge triggered, tri-state non-inverted outputs, 4.75V-5.25V supply, 32mA/64mA output drive, 20ns propagation delay at 300pF, -40°C to 85°C, 24-SOIC package.","salesMarkdown":"## 10-bit D-Type register with tri-state bus hold The CY74FCT821ATSOC from Cypress (now Infineon) is a 10-bit D-type flip-flop in the 74FCT logic family, clocked on the positive edge and delivering tri-state, non-inverted outputs. It packs ten flip-flops into a single 24-SOIC package with a standard function — no master reset, no preset — just clean edge-triggered storage for address, data, or control registers on a 5V bus. Propagation delay is specified at 20 ns into a 300 pF load, which tells you this part is built for driving capacitive bus lines, not just point-to-point logic. Input capacitance is 5 pF per pin, keeping the load on the driving device manageable. ## Tri-state outputs and bus architecture fit The tri-state, non-inverted outputs let you wire the CY74FCT821ATSOC onto a shared data or address bus without contention — the outputs go high-impedance when the output-enable control is deasserted. This makes it a natural fit for microprocessor systems where multiple peripherals share a bus, or for buffered register banks in industrial controllers. ## Lifecycle and sourcing reality It is ROHS3 compliant, so it passes the material compliance gate for new builds. No last-time-buy risk, no forced redesign for obsolescence.","metaTitle":"CY74FCT821ATSOC 74FCT D-Type Flip-Flop, 10-Bit, Tri-State","metaDescription":"CY74FCT821ATSOC D-Type flip-flop, 10-bit, positive-edge triggered, tri-state non-inverted outputs. 4.75V-5.25V supply, 32mA/64mA drive, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"74FCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"D-Type","Series":"74FCT","Package":"Tube","Function":"Standard","Output Type":"Tri-State, Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Surface Mount","Package / Case":"24-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Input Capacitance":"5 pF","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"24-SOIC","Current - Quiescent (Iq)":"200 µA","Current - Output High, Low":"32mA, 64mA","Number of Bits per Element":"10","Max Propagation Delay @ V, Max CL":"20ns @ 300pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.95","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.95000","currency":"USD"},{"qty":10,"price":"$0.83600","currency":"USD"},{"qty":25,"price":"$0.78520","currency":"USD"},{"qty":100,"price":"$0.64100","currency":"USD"},{"qty":250,"price":"$0.59536","currency":"USD"},{"qty":500,"price":"$0.50668","currency":"USD"},{"qty":1000,"price":"$0.40534","currency":"USD"},{"qty":2500,"price":"$0.36734","currency":"USD"},{"qty":5000,"price":"$0.35850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/846d8b64357aefffe353cf55b39db89d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does CY74FCT821ATSOC have tri-state outputs?","answer":"Yes — the outputs are tri-state and non-inverted. They can be set to high-impedance for bus sharing, which is the standard configuration for microprocessor address/data registers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CY74FCT821ATSOC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CY74FCT821ATSOC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}