{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ALS174N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ALS174N","canonicalUrl":"https://icboms.com/texas-instruments/SN74ALS174N","factsUrl":"https://icboms.com/api/mcp/products/SN74ALS174N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74ALS174N, 74ALS series, D-Type flip-flop, 6-bit, positive-edge triggered, master reset, non-inverted output, 50 MHz clock, 17ns @ 5V/50pF, 4.5V~5.5V supply, 0°C~70°C, 16-PDIP, through-hole, tube.","salesMarkdown":"## 50 MHz positive-edge D-type with master reset — what it is and where it fits The Texas Instruments SN74ALS174N is a single-element 6-bit D-type flip-flop from the 74ALS family, clocked on the positive edge and featuring a master reset input that clears all six bits asynchronously. Outputs are non-inverted. It runs on a 4.5 V to 5.5 V supply and is rated for the commercial temperature range of 0°C to 70°C — typical for indoor logic boards, office equipment, and appliance control PCBs where the ambient stays inside a conditioned space. ## 50 MHz clock and 17 ns propagation delay — the timing margin Rated for a maximum clock frequency of 50 MHz, with a propagation delay of 17 ns measured at 5 V into a 50 pF load. That 17 ns sets the window for data setup and hold relative to the clock edge — in a 50 MHz system (20 ns period), you have about 3 ns of slack after the clock-to-Q delay before the next edge arrives. That's tight but workable if the upstream logic is from the same 74ALS or 74F family. The 400 µA output high and 8 mA output low current are typical for ALS logic; they drive one or two standard TTL loads without a buffer, but don't expect to fan out to a dozen gates without seeing the edges round off. ## Active production, ROHS3, no obsolescence concern ROHS3 compliant, so it passes the EU material restrictions without an exemption. For a BOM line, this means no last-time-buy scramble and no need to qualify a substitute. TI continues to run these parts for legacy industrial and commercial designs that need the 5 V logic interface.","metaTitle":"SN74ALS174N 74ALS Hex D Flip-Flop, 50 MHz, 16-PDIP","metaDescription":"TI SN74ALS174N D-type flip-flop, 6-bit, positive-edge triggered with master reset. 50 MHz clock, 17 ns prop delay at 5V. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"74ALS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"D-Type","Series":"74ALS","Package":"Tube","Function":"Master Reset","Output Type":"Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","Clock Frequency":"50 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":"16-PDIP","Current - Quiescent (Iq)":"19 mA","Current - Output High, Low":"400µA, 8mA","Number of Bits per Element":"6","Max Propagation Delay @ V, Max CL":"17ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.15","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.15000","currency":"USD"},{"qty":10,"price":"$1.02600","currency":"USD"},{"qty":25,"price":"$0.97360","currency":"USD"},{"qty":100,"price":"$0.79970","currency":"USD"},{"qty":250,"price":"$0.74752","currency":"USD"},{"qty":500,"price":"$0.66060","currency":"USD"},{"qty":1000,"price":"$0.52152","currency":"USD"},{"qty":2500,"price":"$0.49200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dd9c714b8dbbc16b38342e372d67989d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the clock frequency of SN74ALS174N?","answer":"Rated for a maximum clock frequency of 50 MHz, positive-edge triggered. Propagation delay is 17 ns at 5 V into a 50 pF load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ALS174N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ALS174N 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}}