{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ALS574BDWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ALS574BDWR","canonicalUrl":"https://icboms.com/texas-instruments/SN74ALS574BDWR","factsUrl":"https://icboms.com/api/mcp/products/SN74ALS574BDWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ALS series D-Type flip-flop, SN74ALS574BDWR, 8-bit, positive edge triggered, tri-state non-inverted outputs, 35 MHz clock frequency, 20-SOIC package.","salesMarkdown":"## 8-bit D-type with tri-state bus hold The SN74ALS574BDWR is an 8-bit positive-edge-triggered D-type flip-flop from TI's 74ALS family, with tri-state non-inverted outputs that let multiple devices share a common data bus without contention. It clocks at 35 MHz and delivers a maximum propagation delay of 14 ns into a 50 pF load at 5 V — the timing budget for a 35 MHz bus is about 28 ns per half-cycle, so the 14 ns delay leaves roughly 14 ns of setup-and-hold margin for the downstream latch. Supply range is 4.5 V to 5.5 V, and the part draws 18 mA quiescent current. Output drive is rated 2.6 mA source and 24 mA sink — the 24 mA sink handles standard TTL loads and drives the bus capacitance cleanly at 35 MHz. ## Commercial temperature, SOIC-20 footprint Rated for 0°C to 70°C ambient — the commercial temperature grade suits indoor equipment, telecom racks, and benchtop instruments where the enclosure keeps the board below 70°C. Housed in a 20-SOIC wide-body package (7.50 mm body width), the SN74ALS574BDWR is a surface-mount part that shares the same 1.27 mm pitch footprint as other SOIC-20 logic devices. The supplier device package is 20-SOIC. Available in Tape & Reel (TR) or Cut Tape (CT) — the TR variant is the standard reel for pick-and-place assembly; CT suits prototype or low-volume builds. ## Active lifecycle and compliance It is ROHS3 compliant, so it meets the current EU restriction on hazardous substances without an exemption. For new designs, the 74ALS family is a mature 5 V logic series. If the board runs at 3.3 V or needs lower propagation delay, the 74LVC variant (SN74LVC574APWT) runs at 150 MHz with 6.8 ns delay at 3.3 V — but the package and pinout differ, so a PCB spin is required. ## Sourcing this exact order code The SN74ALS574BDWR is sourced to order against an RFQ through authorized and independent distribution channels.","metaTitle":"SN74ALS574BDWR Texas Instruments 74ALS D-Type Flip-Flop","metaDescription":"SN74ALS574BDWR D-Type flip-flop, 8-bit, 35 MHz clock, 14ns propagation delay, 20-SOIC. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"74ALS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"D-Type","Series":"74ALS","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Standard","Output Type":"Tri-State, Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","Clock Frequency":"35 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Elements":"1","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"20-SOIC","Current - Quiescent (Iq)":"18 mA","Current - Output High, Low":"2.6mA, 24mA","Number of Bits per Element":"8","Max Propagation Delay @ V, Max CL":"14ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.28","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.28000","currency":"USD"},{"qty":10,"price":"$1.14100","currency":"USD"},{"qty":25,"price":"$1.08320","currency":"USD"},{"qty":100,"price":"$0.88990","currency":"USD"},{"qty":250,"price":"$0.83184","currency":"USD"},{"qty":500,"price":"$0.73512","currency":"USD"},{"qty":1000,"price":"$0.58035","currency":"USD"},{"qty":2000,"price":"$0.54750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f461c0818adb3285528af0488b8d40df.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for the SN74ALS574BDWR?","answer":"The SN74LVC574APWT is a pin-compatible 8-bit D-type flip-flop from the 74LVC family, but it runs at 1.65 V to 3.6 V supply and 150 MHz clock. It will not drop into a 5 V 74ALS board without a supply voltage change and timing revalidation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ALS574BDWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ALS574BDWR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}