{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74ACT02E","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74ACT02E","canonicalUrl":"https://icboms.com/texas-instruments/CD74ACT02E","factsUrl":"https://icboms.com/api/mcp/products/CD74ACT02E","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ACT series, NOR Gate, 4-circuit 2-input, 14-DIP (0.300\", 7.62mm), Through Hole, 4.5V ~ 5.5V supply, -55°C ~ 125°C, Active.","salesMarkdown":"## Active production — no end-of-life risk for this BOM line The CD74ACT02E: ROHS3 compliant, so it meets the EU Restriction of Hazardous Substances directive without exemption — no lead, mercury, or cadmium above the threshold limits. ## Logic function and package — the fit decision for a legacy or new board Quad 2-input NOR gate — four independent NOR gates in one package, each with two inputs. The logic function is fixed; a board that needs a NOR gate at a specific location can use this device without external pull-ups or inverters. 14-pin DIP package (0.300 inch row spacing, 7.62 mm body width) with through-hole leads. This is the standard dual-inline footprint that drops into a 14-pin socket or solders directly into plated through-holes on a PCB. No surface-mount reflow profile needed — suitable for hand-assembly or low-volume production. ## Temperature grade and timing — what the ratings mean for a real circuit This is the same temperature class as MIL-STD-883 screened parts — usable in avionics, engine-bay electronics, or outdoor telecom cabinets without derating the logic family for cold or hot extremes. Maximum propagation delay is 12.2 ns at 5 V supply driving a 50 pF load. In a 5 V system clocked at 40 MHz (25 ns period), the gate delay consumes about half the timing budget before accounting for interconnect and input capacitance — the remaining margin is tight but workable with careful PCB trace length matching. Input logic thresholds: Low at 0.8 V max, High at 2 V min. These are TTL-compatible levels — the gate interprets a 0.8 V input as logic low and a 2 V input as logic high, so it interfaces directly with standard 5 V TTL outputs without level shifting. Quiescent current is 4 µA maximum — the gate draws negligible current when the outputs are static. For a battery-backed or always-on logic block, this keeps the standby power below 20 µW at 5 V. Output drive capability is 24 mA sink and 24 mA source at the rated output voltage. This is enough to drive a standard LED (with a series resistor) or a 5 V relay coil through a transistor buffer, but not enough for a direct high-current load.","metaTitle":"TI CD74ACT02E NOR Gate, 4-ch 2-input, 14-DIP, Active","metaDescription":"Texas Instruments CD74ACT02E quad 2-input NOR gate, 14-DIP package, 4.5-5.5V supply, -55 to +125°C range. Active production, RoHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"74ACT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74ACT","Package":"Tube","Logic Type":"NOR Gate","Mounting Type":"Through Hole","Package / Case":"14-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"4.5V ~ 5.5V","Number of Circuits":"4","Operating Temperature":"-55°C ~ 125°C","Input Logic Level - Low":"0.8V","Supplier Device Package":"14-PDIP","Input Logic Level - High":"2V","Current - Quiescent (Max)":"4 µA","Current - Output High, Low":"24mA, 24mA","Max Propagation Delay @ V, Max CL":"12.2ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.12","priceTiers":[{"qty":1,"price":"$1.12000","currency":"USD"},{"qty":10,"price":"$1.00400","currency":"USD"},{"qty":25,"price":"$0.95280","currency":"USD"},{"qty":100,"price":"$0.78260","currency":"USD"},{"qty":250,"price":"$0.73156","currency":"USD"},{"qty":500,"price":"$0.64650","currency":"USD"},{"qty":1000,"price":"$0.51039","currency":"USD"},{"qty":2500,"price":"$0.48150","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ce1e8fd833400827bb1aca73145a0928.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CD74ACT02E/alternatives.json"},"ai":{"faq":[{"question":"How can I order the CD74ACT02E or check current availability?","answer":"The CD74ACT02E is an active Texas Instruments part, sourced to order against your BOM quantity through independent distribution."},{"question":"Is the CD74ACT02E a direct drop-in replacement for the SN74HC27APWR?","answer":"No — the SN74HC27APWR is a triple 3-input NOR gate in a surface-mount package, while the CD74ACT02E is a quad 2-input NOR gate in a through-hole DIP. The logic function, pin count, and package are different; a board designed for the SN74HC27APWR would need a redesign to use the CD74ACT02E."},{"question":"What compliance documentation does Texas Instruments provide for the CD74ACT02E?","answer":"The device is RoHS3 compliant (no exemptions) per the manufacturer's declaration. TI provides a RoHS certificate and material declaration datasheet on request. No UL, IEC, or military qualification is listed for this standard commercial logic part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74ACT02E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74ACT02E 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}}