{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HCT02MT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HCT02MT","canonicalUrl":"https://icboms.com/texas-instruments/CD74HCT02MT","factsUrl":"https://icboms.com/api/mcp/products/CD74HCT02MT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series, CD74HCT02MT, quad 2-input NOR gate, 14-SOIC, 4.5V–5.5V supply, 21ns propagation delay at 4.5V, -55°C to 125°C.","salesMarkdown":"## Quad 2-input NOR gate in 14-SOIC — 74HCT logic at 5V The Texas Instruments CD74HCT02MT is a quad 2-input NOR gate from the 74HCT series, packaged in a 14-SOIC (0.154\", 3.90mm Width) for surface-mount assembly. It integrates four independent NOR gates, each with two inputs, making it a compact glue-logic building block for 5V digital systems. Supply voltage spans 4.5V to 5.5V, with HCT-compatible input thresholds: logic-low at 0.8V max and logic-high at 2V min. This means it interfaces directly with 5V TTL outputs and with most 3.3V logic that meets the 2V VIH threshold — no level translator needed in mixed-voltage designs where the 3.3V driver swings above 2V. Operating temperature covers the full military range of -55°C to 125°C, qualifying it for avionics, downhole instrumentation, and outdoor industrial control where the ambient can swing extremes. The quiescent current maxes at 2 µA, negligible for battery-backed or always-on domains. ## 21 ns propagation delay — timing margin for the data path Maximum propagation delay is 21 ns at 4.5V supply with a 50 pF load. For a 5V system clocked at 20 MHz (50 ns period), this gate consumes about 42% of the cycle — tight but workable in a single-gate path. In slower control or status-logic paths (1–10 MHz), the margin is comfortable. The delay is specified at the worst-case corner, so production units typically switch faster. Output drive is symmetric at 4 mA source and 4 mA sink, sufficient for driving one or two standard CMOS loads or a single LSTTL input. For heavier fan-out or longer traces, buffer the output or use a higher-drive family like 74AC. ## Active lifecycle, ROHS3, and sourcing posture This is a standard catalog part with stable availability through independent distribution. For dual-sourcing resilience, the 74HCT family includes multiple quad-gate variants in the same 14-SOIC footprint. The CD74HCT132M96 is a quad 2-input NAND gate with Schmitt-trigger inputs (0.5V to 0.6V low, 1.9V to 2.1V high) and a slower 33 ns propagation delay — functionally different (NAND vs NOR, Schmitt vs standard) but same supply range and package, useful if the logic function can be inverted externally.","metaTitle":"CD74HCT02MT Quad 2-Input NOR Gate, 74HCT, 14-SOIC, 21ns","metaDescription":"CD74HCT02MT quad 2-input NOR gate from TI 74HCT series. 4.5V–5.5V supply, 21ns prop delay at 4.5V, -55°C to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Series":"74HCT","Package":"Tape & Reel (TR); Cut Tape (CT)","Logic Type":"NOR Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","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-SOIC","Input Logic Level - High":"2V","Current - Quiescent (Max)":"2 µA","Current - Output High, Low":"4mA, 4mA","Max Propagation Delay @ V, Max CL":"21ns @ 4.5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.14","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.14000","currency":"USD"},{"qty":10,"price":"$1.01600","currency":"USD"},{"qty":25,"price":"$0.96480","currency":"USD"},{"qty":100,"price":"$0.79240","currency":"USD"},{"qty":250,"price":"$0.74068","currency":"USD"},{"qty":500,"price":"$0.65456","currency":"USD"},{"qty":1250,"price":"$0.51675","currency":"USD"},{"qty":2500,"price":"$0.48750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b9dd81f2f2fc0e9e5f8d3ac82cd3cdab.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the propagation delay of CD74HCT02MT?","answer":"This is the worst-case spec; typical switching is faster."},{"question":"Is CD74HCT02MT RoHS compliant?","answer":"Yes, it is ROHS3 compliant, meaning it contains no restricted substances above the allowed thresholds."},{"question":"Does CD74HCT02MT come in tape and reel or cut tape?","answer":"The CD74HCT02MT is offered in Tape & Reel (TR) and Cut Tape (CT) options for surface-mount assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HCT02MT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HCT02MT 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}}