{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ALS74ADR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ALS74ADR","canonicalUrl":"https://icboms.com/texas-instruments/SN74ALS74ADR","factsUrl":"https://icboms.com/api/mcp/products/SN74ALS74ADR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ALS series SN74ALS74ADR, D-Type flip-flop, dual 1-bit, positive edge trigger, complementary outputs, set/preset and reset, 34 MHz, 4.5-5.5V, 14-SOIC, 0°C to 70°C.","salesMarkdown":"## Dual D-type flip-flop with set and reset — 34 MHz, 5V only The Texas Instruments SN74ALS74ADR is a dual positive-edge-triggered D-type flip-flop with individual set (preset) and reset inputs, complementary outputs, and a rated clock frequency of 34 MHz. Each of the two elements stores one bit. It operates from a 4.5 V to 5.5 V supply — strictly a 5 V rail part — and is specified over the commercial temperature range of 0°C to 70°C. Propagation delay is 18 ns typical at 5 V into a 50 pF load, which sets the timing budget for bus-oriented or control-register applications in office equipment, appliances, and indoor PCB designs. The package is a 14-SOIC (3.90 mm width), surface-mount, and the part is ROHS3 compliant. ## 34 MHz clock and 18 ns propagation delay — timing margin for 5 V synchronous logic The 34 MHz clock frequency and 18 ns propagation delay (at 5 V, 50 pF) define the usable speed grade for this flip-flop. Quiescent current is 4 mA, and the output drive is 400 µA source, 8 mA sink. ## Active production — no LTB risk, ROHS3 compliant The SN74ALS74ADR carries an active lifecycle status with no end-of-life notice. It is ROHS3 compliant, so it passes EU RoHS requirements without exemption claims. For a BOM line that needs a 5 V dual D-type in a 14-SOIC footprint, this part is a safe long-term selection — no last-time-buy planning required.","metaTitle":"SN74ALS74ADR Texas Instruments D-Type Flip-Flop, 34 MHz","metaDescription":"TI SN74ALS74ADR dual D-type flip-flop with set/reset, 34 MHz clock, 18 ns prop delay, 4.5-5.5V supply, 0-70°C, 14-SOIC. Active production, ROHS3 compliant.","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":"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":"34 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Elements":"2","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"14-SOIC","Current - Quiescent (Iq)":"4 mA","Current - Output High, Low":"400µA, 8mA","Number of Bits per Element":"1","Max Propagation Delay @ V, Max CL":"18ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.88","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.88000","currency":"USD"},{"qty":10,"price":"$0.78800","currency":"USD"},{"qty":25,"price":"$0.74800","currency":"USD"},{"qty":100,"price":"$0.61440","currency":"USD"},{"qty":250,"price":"$0.57432","currency":"USD"},{"qty":500,"price":"$0.50752","currency":"USD"},{"qty":1000,"price":"$0.40068","currency":"USD"},{"qty":2500,"price":"$0.37800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/140a881ffa0c00c2db3bb6ebb87e7724.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use SN74ALS74ADR with 3.3V logic?","answer":"No, the supply voltage range is 4.5 V to 5.5 V. 3.3 V operation is not supported; level translation is required for mixed-voltage designs."},{"question":"What is the difference between SN74ALS74ADR and SN74ALS74AN?","answer":"The SN74ALS74ADR is the surface-mount 14-SOIC version (Tape & Reel), while the SN74ALS74AN is the through-hole DIP version. Function and electrical specs are identical."},{"question":"Can I replace SN74ALS74ADR with a 74HC74?","answer":"A 74HC74 is a CMOS D-type flip-flop with a wider supply range (2 V to 6 V) and lower power, but its input thresholds and output drive differ from the 74ALS bipolar family. Direct replacement requires checking input logic levels and propagation delay against the design's timing budget."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ALS74ADR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ALS74ADR 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}}