{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AHCT74QDRG4Q1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AHCT74QDRG4Q1","canonicalUrl":"https://icboms.com/texas-instruments/SN74AHCT74QDRG4Q1","factsUrl":"https://icboms.com/api/mcp/products/SN74AHCT74QDRG4Q1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74AHCT74QDRG4Q1, Automotive AEC-Q100 74AHCT series, dual D-type flip-flop with set and reset, positive-edge triggered, complementary outputs, 140 MHz clock, 4.5V–5.5V supply, 14-SOIC package, -40°C to 125°C.","salesMarkdown":"## 140 MHz clock and 8.8 ns propagation delay — timing margin for high-speed buses The 140 MHz clock rating and 8.8 ns max propagation delay at 5V, 50 pF load give this flip-flop enough speed to latch data on fast parallel or serial buses without violating setup/hold windows. In a typical automotive CAN transceiver interface or a high-speed counter input, that margin avoids metastability when the data edge arrives close to the clock edge. The 2 pF input capacitance keeps the clock-line load light, which simplifies drive budgeting on a shared bus. ## AEC-Q100 and -40°C to 125°C — qualified for under-hood and harsh environments This part carries AEC-Q100 automotive qualification and a -40°C to 125°C operating temperature range. That means it is tested and characterized for the thermal cycling, vibration, and voltage transients found in engine bays, transmission controllers, and chassis-mounted modules. The 2 µA quiescent current is low enough to keep standby drain negligible in always-powered ECUs. For a BOM line that needs a 5V flip-flop in an automotive or industrial extended-temperature design, this part fits without derating concerns. ## Active production — no obsolescence risk for new designs The SN74AHCT74QDRG4Q1 is listed as Active and ROHS3 compliant. It is a current-production TI part with no announced last-time-buy or discontinuation. If you are freezing a BOM for a multi-year automotive program, this part does not carry the lifecycle risk that NRND or EOL parts do. ## Package and mounting — 14-SOIC, surface-mount, tape-and-reel option 14-SOIC package (0.154\" body width, 3.90 mm) is a common footprint. Available in Tape & Reel or Cut Tape for standard pick-and-place. ## 8 mA output drive — direct interface to standard logic families Each output sources or sinks 8 mA, which is enough to drive one or two standard 74AHCT or 74HCT loads, an LED indicator through a series resistor, or the input of a downstream microcontroller GPIO. The complementary outputs give both Q and /Q simultaneously, useful for differential signalling or generating inverted clocks without an extra inverter gate.","metaTitle":"SN74AHCT74QDRG4Q1 Dual D-Type Flip-Flop, 140 MHz, AEC-Q100","metaDescription":"TI SN74AHCT74QDRG4Q1 dual D-type flip-flop with set/reset, 140 MHz clock, 8.8 ns propagation delay at 5V. AEC-Q100 qualified, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, 74AHCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"D-Type","Series":"Automotive, AEC-Q100, 74AHCT","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Set(Preset) and Reset","Output Type":"Complementary","Trigger Type":"Positive Edge","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"140 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Input Capacitance":"2 pF","Number of Elements":"2","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"14-SOIC","Current - Quiescent (Iq)":"2 µA","Current - Output High, Low":"8mA, 8mA","Number of Bits per Element":"1","Max Propagation Delay @ V, Max CL":"8.8ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.69","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.69000","currency":"USD"},{"qty":10,"price":"$0.60900","currency":"USD"},{"qty":25,"price":"$0.57160","currency":"USD"},{"qty":100,"price":"$0.46660","currency":"USD"},{"qty":250,"price":"$0.43344","currency":"USD"},{"qty":500,"price":"$0.36888","currency":"USD"},{"qty":1000,"price":"$0.29510","currency":"USD"},{"qty":2500,"price":"$0.26744","currency":"USD"},{"qty":5000,"price":"$0.26100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c9aabcee1ca736801f1ca30d8d4c8ae1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy SN74AHCT74QDRG4Q1?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the function of SN74AHCT74QDRG4Q1?","answer":"It is a dual D-type flip-flop with set (preset) and reset inputs, positive-edge triggered, with complementary outputs. Each of the two flip-flops stores one bit."},{"question":"Is SN74AHCT74QDRG4Q1 automotive qualified?","answer":"Yes, it is AEC-Q100 qualified and rated for -40°C to 125°C, making it suitable for automotive under-hood and engine-bay applications."},{"question":"What is the equivalent of SN74AHCT74QDRG4Q1?","answer":"A functional equivalent in the 74LS family is the SN74LS175NS, but note it is a quad D-type (4 bits) with a master reset, 40 MHz clock, and 0°C to 70°C range — not a direct pin-for-pin replacement. For a true 5V automotive-grade dual D-type with set/reset, this TI part is the current-production choice."},{"question":"What is the price for SN74AHCT74QDRG4Q1?","answer":"Pricing is confirmed at quote time against an RFQ. Submit a request for the current market price based on your quantity and delivery needs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AHCT74QDRG4Q1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AHCT74QDRG4Q1 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}}