{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HCT74E","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HCT74E","canonicalUrl":"https://icboms.com/texas-instruments/CD74HCT74E","factsUrl":"https://icboms.com/api/mcp/products/CD74HCT74E","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series D-Type flip-flop, CD74HCT74E, dual 1-bit positive-edge triggered, set/preset and reset, complementary outputs, 50 MHz clock, 4.5V-5.5V supply, 14-PDIP, -55°C to 125°C.","salesMarkdown":"Each flip-flop has independent set (preset) and reset inputs, positive-edge clock triggering, and complementary Q and Q̅ outputs. It operates from a 4.5 V to 5.5 V supply and draws only 4 µA quiescent current. ## 50 MHz clock — timing budget for the bus Rated at 50 MHz clock frequency, this flip-flop handles moderate-speed synchronous logic — state machines, address latching, or register pipelines in industrial controllers and telecom line cards. Propagation delay is 35 ns max at 4.5 V with a 50 pF load, which sets the hold-time margin for back-to-back flip-flop stages. At 15 MHz the DM7474N is a slower alternative, but the 74HCT's 50 MHz ceiling gives more headroom in the timing budget. The 14-PDIP package (0.300\" wide, 7.62 mm pitch) is socket-friendly for prototyping and field service. It is also RoHS3 compliant.","metaTitle":"CD74HCT74E D-Type Flip-Flop, 50 MHz, 14-PDIP, -55°C to 125°C","metaDescription":"CD74HCT74E dual D-type flip-flop with set/reset, positive-edge triggered, 50 MHz clock, complementary outputs, 4.5V-5.5V supply, -55°C to 125°C, 14-PDIP.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"D-Type","Series":"74HCT","Package":"Tube","Function":"Set(Preset) and Reset","Output Type":"Complementary","Trigger Type":"Positive Edge","Mounting Type":"Through Hole","Package / Case":"14-DIP (0.300\\\", 7.62mm)","Clock Frequency":"50 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Input Capacitance":"10 pF","Number of Elements":"2","Operating Temperature":"-55°C ~ 125°C (TA)","Supplier Device Package":"14-PDIP","Current - Quiescent (Iq)":"4 µA","Current - Output High, Low":"4mA, 4mA","Number of Bits per Element":"1","Max Propagation Delay @ V, Max CL":"35ns @ 4.5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.62","priceTiers":[{"qty":1,"price":"$0.62000","currency":"USD"},{"qty":10,"price":"$0.54300","currency":"USD"},{"qty":25,"price":"$0.50960","currency":"USD"},{"qty":100,"price":"$0.41610","currency":"USD"},{"qty":250,"price":"$0.38644","currency":"USD"},{"qty":500,"price":"$0.32890","currency":"USD"},{"qty":1000,"price":"$0.26312","currency":"USD"},{"qty":2500,"price":"$0.23845","currency":"USD"},{"qty":5000,"price":"$0.23271","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d0137fcf89091f9a01255acff41a730e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CD74HCT74E/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between CD74HCT74E and CD74HC74E?","answer":"Both are dual D-type flip-flops with the same pinout and function. The CD74HCT74E uses HCT logic (TTL-compatible input thresholds at 5 V), while the CD74HC74E uses HC logic (CMOS input thresholds). If your system already has TTL-level signals, the HCT variant is the direct drop-in."},{"question":"Is CD74HCT74E RoHS compliant?","answer":"Yes, the CD74HCT74E is RoHS3 compliant per the manufacturer's specification."},{"question":"How do I replace CD74HCT74E with a surface mount version?","answer":"The 74HCT family includes surface-mount alternatives in SOIC-14 (CD74HCT74M) or TSSOP-14 packages. Verify the pinout matches — same dual D-type function with set/reset — and adjust the PCB footprint accordingly. The electrical specs (50 MHz, 4.5 V-5.5 V, -55°C to 125°C) are identical across the package variants."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HCT74E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HCT74E 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}}