{"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":"## What the CD74HCT74E is and where it fits The Texas Instruments CD74HCT74E is a dual D-type flip-flop from the 74HCT logic family, packaged in a 14-lead PDIP for through-hole assembly. 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. ## Military temperature range — -55°C to 125°C Rated for -55°C to 125°C ambient, the CD74HCT74E suits avionics, satellite, downhole instrumentation, and outdoor telecom enclosures where commercial-grade parts cannot survive. The 14-PDIP package (0.300\" wide, 7.62 mm pitch) is socket-friendly for prototyping and field service. ## Active lifecycle — no LTB pressure The CD74HCT74E carries an Active lifecycle status per the manufacturer. It is also RoHS3 compliant. For new designs or production replenishment, this part is available through independent distribution and can be quoted to order.","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":["Analog & Data Acquisition"],"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","stockQuantity":0,"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},"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":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}