{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC266D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC266D","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC266D","factsUrl":"https://icboms.com/api/mcp/products/SN74HC266D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series SN74HC266D, quad 2-input XNOR gate with open-drain outputs, 14-SOIC package, 2V to 6V supply, -40°C to 85°C, active lifecycle.","salesMarkdown":"## Quad XNOR with open-drain outputs The SN74HC266D is a quad 2-input XNOR (Exclusive NOR) gate from the 74HC family, with open-drain outputs — meaning the output can be pulled low actively but requires an external pull-up resistor to reach a high logic level, enabling wired-AND bus connections or level translation. It operates across a 2V to 6V supply range and is specified over the industrial temperature band of -40°C to 85°C, making it suitable for mixed-voltage logic interfaces in control and instrumentation boards. ## 23 ns propagation delay at 6V Maximum propagation delay is 23 ns at 6V with a 50 pF load — this sets the data-rate ceiling for the gate in a synchronous bus; the open-drain output adds rise-time dependence on the pull-up resistor value, so the actual toggle rate at the receiver may be lower than the bare delay suggests. Quiescent current is a maximum of 2 µA, keeping the static power draw negligible in battery-powered or always-on logic sections. The high-level output current is not specified (listed as '-'), while the low-level sink capability is 5.2 mA — the pull-up resistor must be sized to stay within this sink current when the output is low, typically a few kilo-ohms for 5V operation. ## Active lifecycle, ROHS3, 14-SOIC Supplied in tube packaging; the MSL (moisture sensitivity level) for this package is typically Level 1, meaning no special dry-storage handling is required beyond standard shop-floor conditions — store the reels dry if re-bagged, but no bake-out is needed before reflow.","metaTitle":"SN74HC266D 74HC XNOR Gate, Open Drain, 14-SOIC, Active","metaDescription":"SN74HC266D quad 2-input XNOR gate with open-drain outputs. 2V-6V supply, -40°C to 85°C, 23ns delay at 6V. Active, ROHS3. Order via RFQ.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74HC","Package":"Tube","Features":"Open Drain","Logic Type":"XNOR (Exclusive NOR)","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"2V ~ 6V","Number of Circuits":"4","Operating Temperature":"-40°C ~ 85°C","Input Logic Level - Low":"0.5V ~ 1.8V","Supplier Device Package":"14-SOIC","Input Logic Level - High":"1.5V ~ 4.2V","Current - Quiescent (Max)":"2 µA","Current - Output High, Low":"-, 5.2mA","Max Propagation Delay @ V, Max CL":"23ns @ 6V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.23","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.23000","currency":"USD"},{"qty":10,"price":"$1.09800","currency":"USD"},{"qty":25,"price":"$1.04160","currency":"USD"},{"qty":100,"price":"$0.85570","currency":"USD"},{"qty":250,"price":"$0.79992","currency":"USD"},{"qty":500,"price":"$0.70692","currency":"USD"},{"qty":1000,"price":"$0.55809","currency":"USD"},{"qty":2500,"price":"$0.52650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1186a7c92bf18117b9962a7bd736e5d1.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC266D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC266D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}