{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ABT821ADW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ABT821ADW","canonicalUrl":"https://icboms.com/texas-instruments/SN74ABT821ADW","factsUrl":"https://icboms.com/api/mcp/products/SN74ABT821ADW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ABT series D-type flip-flop, SN74ABT821ADW, 10-bit, positive edge triggered, tri-state non-inverted outputs, 125 MHz clock, 24-SOIC package, tube.","salesMarkdown":"## 24-SOIC footprint and 125 MHz clock — what the ratings mean for the bus The SN74ABT821ADW is a single-element 10-bit D-type flip-flop from the 74ABT family, clocked at 125 MHz with a positive-edge trigger. It stores and forwards a 10-bit wide data word on each rising clock edge, making it a fit for address/data latching in a 5 V bus interface. The 6.2 ns max propagation delay at 5 V and 50 pF load sets the timing budget for the downstream logic — at 125 MHz the clock period is 8 ns, so the output settles within 77.5% of the cycle, leaving about 1.8 ns of hold margin before the next edge. That is tight; the board trace length and load capacitance need to stay within the datasheet's derating curve. Tri-state non-inverted outputs with 32 mA source / 64 mA sink drive let the part directly control a 5 V backplane or a bank of LEDs without a buffer — the 64 mA sink handles the transient inrush of a heavily loaded bus line. The 3.5 pF input capacitance per channel keeps the clock-line loading low enough that a single 125 MHz source can fan out to several devices without a dedicated clock buffer. The 250 µA quiescent current is negligible in a powered system — the dynamic draw at 125 MHz will dominate the power budget, but the standby current is low enough that a shared 5 V rail serving multiple logic devices won't see a meaningful idle load from this flip-flop.","metaTitle":"SN74ABT821ADW Texas Instruments 10-bit D-type flip-flop","metaDescription":"Active TI SN74ABT821ADW 10-bit D-type flip-flop, 125 MHz clock, 6.2 ns propagation delay, 24-SOIC. RoHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"74ABT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"D-Type","Series":"74ABT","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)","Clock Frequency":"125 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Input Capacitance":"3.5 pF","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"24-SOIC","Current - Quiescent (Iq)":"250 µA","Current - Output High, Low":"32mA, 64mA","Number of Bits per Element":"10","Max Propagation Delay @ V, Max CL":"6.2ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.46","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.46000","currency":"USD"},{"qty":10,"price":"$2.20800","currency":"USD"},{"qty":25,"price":"$2.08280","currency":"USD"},{"qty":100,"price":"$1.77460","currency":"USD"},{"qty":250,"price":"$1.66632","currency":"USD"},{"qty":500,"price":"$1.45804","currency":"USD"},{"qty":1000,"price":"$1.20808","currency":"USD"},{"qty":2500,"price":"$1.17900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/74bd390a28c789efc57484cd6edc8324.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ABT821ADW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ABT821ADW 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}}