{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AC74D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AC74D","canonicalUrl":"https://icboms.com/texas-instruments/SN74AC74D","factsUrl":"https://icboms.com/api/mcp/products/SN74AC74D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AC series, D-Type flip-flop, dual 1-bit, positive-edge triggered, complementary outputs, 14-SOIC surface mount, 160 MHz clock frequency, 2V–6V supply, -40°C to 85°C operating temperature.","salesMarkdown":"## Dual D-Type flip-flop with set/reset – 160 MHz in a 14-SOIC footprint The SN74AC74D is a dual D-type flip-flop from TI's 74AC family, each element with independent set and reset inputs and complementary outputs. Clocked on the positive edge, it toggles at up to 160 MHz — fast enough for moderate-speed data pipelines, state machines, and frequency dividers without resorting to a faster logic family. ## Supply flexibility and output drive for mixed-voltage boards Runs from 2V to 6V, so it can sit on a 3.3V or 5V rail without a level translator. The 24 mA source/sink per output drives the input capacitance of several downstream CMOS loads directly — useful when the next stage is a microcontroller GPIO or another 74AC gate. Propagation delay is 6 ns typ at 5V, 50 pF load. That 6 ns window includes the clock-to-Q path; budget it in your timing closure for the worst-case temperature and supply corner. ## Active lifecycle – no obsolescence risk for new designs The 14-SOIC package is a standard JEDEC outline — pick-and-place friendly, MSL level 1 (typical for this package), no special bake required before reflow. The 14-SOIC body (3.90 mm width) fits a standard 1.27 mm pitch footprint; no fine-pitch alignment issues on a two-layer board. Quiescent current is only 2 µA, so the flip-flop adds negligible standby draw in battery-backed or always-on subsystems.","metaTitle":"SN74AC74D D-Type Flip-Flop – TI 74AC Series, 160 MHz","metaDescription":"Texas Instruments SN74AC74D dual D-type flip-flop with set/reset, 160 MHz clock, 2V–6V supply, industrial temp -40°C to 85°C. Active production, 14-SOIC.","metaKeywords":null},"attributes":{"series":"74AC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Type":"D-Type","Series":"74AC","Package":"Tube","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":"160 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Input Capacitance":"3 pF","Number of Elements":"2","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"14-SOIC","Current - Quiescent (Iq)":"2 µA","Current - Output High, Low":"24mA, 24mA","Number of Bits per Element":"1","Max Propagation Delay @ V, Max CL":"6ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.21","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.21000","currency":"USD"},{"qty":10,"price":"$1.07900","currency":"USD"},{"qty":25,"price":"$1.02400","currency":"USD"},{"qty":100,"price":"$0.84110","currency":"USD"},{"qty":250,"price":"$0.78624","currency":"USD"},{"qty":500,"price":"$0.69484","currency":"USD"},{"qty":1000,"price":"$0.54855","currency":"USD"},{"qty":2500,"price":"$0.51750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/436eb7e5abfe9a87699aa520fe70448e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SN74AC74D compatible with 3.3V logic?","answer":"Yes. The supply range is 2V to 6V, so it operates on a 3.3V rail. The 24 mA output drive at 3.3V is sufficient to drive standard CMOS inputs. For 3.3V-to-5V interfacing, the 74AC family's input thresholds are compatible with both levels."},{"question":"What is the closest pin-compatible alternative to SN74AC74D?","answer":"Within the 74AC family, the SN74AC74D is the standard dual D-type flip-flop. Pin-compatible alternatives exist in the 74HC and 74HCT families (e.g., SN74HC74D) but with lower clock frequency and different input thresholds. For a drop-in replacement at the same speed grade, stick with the 74AC variant."},{"question":"What is the SN74AC74D's listed type and series?","answer":"Type is D-Type, series is 74AC. It is a dual 1-bit positive-edge triggered flip-flop with set and reset, complementary outputs, in a 14-SOIC package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AC74D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AC74D 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}}