{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS266PWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS266PWR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS266PWR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS266PWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series quad 2-input XNOR gate, SN74HCS266PWR, Schmitt-trigger inputs, open-drain outputs, 2V to 6V supply, -40°C to 125°C, 14-TSSOP package, Tape & Reel.","salesMarkdown":"## XNOR with open-drain output — where it fits in the 74HCS family The SN74HCS266PWR is a quad 2-input XNOR (Exclusive NOR) gate from the 74HCS series, combining Schmitt-trigger inputs with open-drain outputs. The open-drain output means the gate can only pull the output low; a pull-up resistor to the desired logic voltage sets the high level, which allows wired-AND connections or level translation to a higher-voltage bus without an external translator. Each of the four independent gates accepts two inputs. The Schmitt-trigger hysteresis cleans up slow or noisy edges — a 1V to 3V low-level threshold versus a 1.5V to 4.2V high-level threshold gives about 0.5V of typical hysteresis across the 2V to 6V supply range. ## Supply range, temperature grade, and quiescent draw Rated for 2V to 6V supply, the part covers 3.3V and 5V logic rails without a separate regulator. The -40°C to 125°C operating range spans industrial and automotive ambient — the 125°C ceiling covers under-hood and engine-bay environments where standard 85°C logic would derate. Quiescent current maxes at 2 µA across the full voltage and temperature range. For a battery-powered sensor node that spends most of its life in standby, the gate's own draw is negligible — the pull-up resistor on the open-drain output will dominate the idle current budget. Propagation delay is 16 ns typical at 6V with a 50 pF load. The open-drain output's rise time is set by the external pull-up resistor and load capacitance, not by the gate itself — a 1 kΩ pull-up into 50 pF adds about 55 ns of RC rise, which sets the practical data rate ceiling more than the 16 ns propagation delay. ## Package and sourcing posture Housed in a 14-TSSOP package (4.40 mm body width, 0.65 mm pin pitch), the SN74HCS266PWR is a surface-mount part suited for dense PCB layouts. The Tape & Reel (TR) and Cut Tape (CT) packaging options support both production reels and prototype quantities. Texas Instruments lists the product status as Active. Sourced through franchised and independent distribution channels; availability and current pricing confirmed at RFQ against the BOM line.","metaTitle":"SN74HCS266PWR Texas Instruments XNOR Gate, 4-Ch, 14-TSSOP","metaDescription":"Texas Instruments SN74HCS266PWR quad 2-input XNOR gate with Schmitt-trigger inputs and open-drain outputs. 2V-6V supply, -40°C to 125°C, 14-TSSOP.","metaKeywords":null},"attributes":{"series":"74HCS","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74HCS","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Schmitt Trigger, Open Drain","Logic Type":"XNOR (Exclusive NOR)","Mounting Type":"Surface Mount","Package / Case":"14-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"2V ~ 6V","Number of Circuits":"4","Operating Temperature":"-40°C ~ 125°C","Input Logic Level - Low":"1V ~ 3V","Supplier Device Package":"14-TSSOP","Input Logic Level - High":"1.5V ~ 4.2V","Current - Quiescent (Max)":"2 µA","Current - Output High, Low":"-, 7.8mA","Max Propagation Delay @ V, Max CL":"16ns @ 6V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.35","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.35000","currency":"USD"},{"qty":10,"price":"$0.28500","currency":"USD"},{"qty":25,"price":"$0.26040","currency":"USD"},{"qty":100,"price":"$0.19390","currency":"USD"},{"qty":250,"price":"$0.17576","currency":"USD"},{"qty":500,"price":"$0.14544","currency":"USD"},{"qty":1000,"price":"$0.10908","currency":"USD"},{"qty":2000,"price":"$0.09999","currency":"USD"},{"qty":6000,"price":"$0.09393","currency":"USD"},{"qty":10000,"price":"$0.08787","currency":"USD"},{"qty":50000,"price":"$0.07757","currency":"USD"},{"qty":100000,"price":"$0.07575","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ec82dd010a0128b241dde5f95342fada.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the SN74HCS266PWR's logic function and output type?","answer":"It is a quad 2-input XNOR (Exclusive NOR) gate with open-drain outputs. The open-drain output requires an external pull-up resistor to set the high-level voltage, enabling wired-AND connections and level translation."},{"question":"What supply voltage and temperature range does the SN74HCS266PWR support?","answer":"The supply range is 2V to 6V, covering 3.3V and 5V logic rails. Operating temperature spans -40°C to 125°C, suitable for industrial and automotive environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS266PWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS266PWR 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}}