{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HCT174E","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HCT174E","canonicalUrl":"https://icboms.com/texas-instruments/CD74HCT174E","factsUrl":"https://icboms.com/api/mcp/products/CD74HCT174E","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series D-Type flip-flop, CD74HCT174E, 6-bit, positive-edge triggered, 25 MHz, 4.5V-5.5V supply, 16-DIP through-hole package, -55 to 125°C operating temperature.","salesMarkdown":"## What this 6-bit D-type flip-flop is and where it fits The Texas Instruments CD74HCT174E is a 74HCT-series hex D-type flip-flop with a common master-reset function. It integrates six positive-edge-triggered flip-flops in a single 16-pin DIP package, with non-inverted outputs on each channel. The part operates from a 4.5 V to 5.5 V supply and is specified over the full military temperature range of -55°C to 125°C, making it suitable for avionics, satellite, downhole drilling, and other harsh-environment control logic where the board sees wide thermal swings. The 25 MHz maximum clock frequency supports moderate-speed synchronous bus interfacing, while the 4 mA source/sink output drive handles standard TTL/CMOS fan-out and small loads like indicator LEDs or relay coil drivers. ## Through-hole 16-DIP package — legacy footprint, repair-friendly The 16-DIP (0.300\", 7.62 mm) through-hole package is a legacy format still widely used in industrial control boards, test equipment, and prototyping. It is socket-friendly, easy to hand-solder, and simpler to inspect than a fine-pitch SMD. For a repair depot or MRO environment where boards are reworked with a soldering iron, the DIP package is a practical choice. The supplier device package is 16-PDIP. ## Master reset function and positive-edge triggering The common master reset (MR) input, active low, clears all six flip-flops asynchronously when asserted. This is useful for power-on reset or emergency clear in a state machine. The positive-edge trigger on the clock input means data is captured on the rising edge — standard for most synchronous logic families. The non-inverted outputs drive the same polarity as the input. ## Lifecycle and sourcing — active, no obsolescence risk The CD74HCT174E is listed as Active in production with ROHS3 compliance. For new designs, this part is a safe choice with no near-term obsolescence risk. The laser etch on the package should trace cleanly to Texas Instruments' date-code format — we recommend verifying the top-mark font and lot code against TI's marking specification, especially for gray-market stock.","metaTitle":"CD74HCT174E D-Type Flip-Flop, 25 MHz, 16-DIP","metaDescription":"Texas Instruments CD74HCT174E 74HCT series D-type flip-flop, 6-bit, positive-edge triggered, 25 MHz clock. Through-hole 16-DIP package, -55 to 125°C.","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":"Master Reset","Output Type":"Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","Clock Frequency":"25 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Input Capacitance":"10 pF","Number of Elements":"1","Operating Temperature":"-55°C ~ 125°C (TA)","Supplier Device Package":"16-PDIP","Current - Quiescent (Iq)":"8 µA","Current - Output High, Low":"4mA, 4mA","Number of Bits per Element":"6","Max Propagation Delay @ V, Max CL":"40ns @ 4.5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.62000","currency":"USD"},{"qty":10,"price":"$0.54200","currency":"USD"},{"qty":25,"price":"$0.50920","currency":"USD"},{"qty":100,"price":"$0.41570","currency":"USD"},{"qty":250,"price":"$0.38612","currency":"USD"},{"qty":500,"price":"$0.32860","currency":"USD"},{"qty":1000,"price":"$0.26288","currency":"USD"},{"qty":2500,"price":"$0.23824","currency":"USD"},{"qty":5000,"price":"$0.23250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a710d95f2cb62223f9fc3a068a835034.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How many flip-flops does the CD74HCT174E have?","answer":"The CD74HCT174E contains six D-type flip-flops (6 bits per element) in a single package, each with a non-inverted output and a common master-reset input."},{"question":"What is the difference between the CD74HCT174E and the 74HC174?","answer":"The CD74HCT174E is the HCT (High-Speed CMOS with TTL-compatible input thresholds) variant, while the 74HC174 is the HC (High-Speed CMOS with CMOS input thresholds) version. The HCT version is designed to interface directly with TTL logic levels (input low < 0.8 V, high > 2.0 V) on a 5 V supply, making it a drop-in replacement for 74LS or 74F bipolar flip-flops in mixed-logic systems. The HC version uses CMOS thresholds (1.5 V typical at 5 V) and is better suited for all-CMOS designs. Both share the same pinout and function."},{"question":"Can the CD74HCT174E be used as a shift register?","answer":"The CD74HCT174E is a parallel-input D-type flip-flop with a common clock and master reset — it does not have a serial data input or internal shift connections. It cannot function as a shift register without external wiring to cascade the outputs to the next stage's inputs. For a dedicated shift register, consider a part like the 74HCT595 or 74HCT164."},{"question":"What are the recommended operating conditions for the CD74HCT174E?","answer":"The recommended supply voltage is 4.5 V to 5.5 V. The operating temperature range is -55°C to 125°C. The clock frequency should not exceed 25 MHz. Input capacitance is 10 pF typical. Output current is rated at 4 mA source and 4 mA sink per output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HCT174E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HCT174E 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}}