{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS266QDRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS266QDRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS266QDRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS266QDRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series Automotive AEC-Q100 XNOR gate, SN74HCS266QDRQ1, quad 2-input, Schmitt-trigger inputs, 2V-6V supply, 14-SOIC package.","salesMarkdown":"## Quad XNOR gate with Schmitt-trigger inputs for noise-prone automotive buses The SN74HCS266QDRQ1 is a quad 2-input XNOR (exclusive NOR) gate from Texas Instruments' 74HCS series, qualified to AEC-Q100 Grade 1 for automotive applications. Each of the four independent gates includes Schmitt-trigger inputs, which provide hysteresis for clean switching on slow or noisy signal edges—critical on long harness runs where CAN or LIN bus lines couple interference into adjacent traces. ## Supply voltage, temperature grade, and timing budget The 2V to 6V supply range covers the full automotive battery voltage envelope from cold-crank dips to load-dump recovery, without requiring an external regulator. Maximum quiescent current is 2 µA, so the gate's own draw is negligible in always-powered modules like body controllers or gateway ECUs. Output drive is specified as 7.8 mA sink/source, enough to drive a single downstream CMOS load or a low-speed optocoupler LED without a buffer. Propagation delay is 16 ns max at 6V with a 50 pF load. At 3.3V the delay will be higher—budget 20–25 ns for timing closure in a 1 MHz clock distribution or a debounced switch input path. ## 14-SOIC package and board integration Available in Tape & Reel (TR) or Cut Tape (CT) options, the TR variant suits automated pick-and-place for volume production; CT is practical for prototype or low-volume builds.","metaTitle":"SN74HCS266QDRQ1 Texas Instruments XNOR Gate, 14-SOIC","metaDescription":"SN74HCS266QDRQ1 quad 2-input XNOR gate from TI. Automotive AEC-Q100, 2-6V supply, Schmitt-trigger inputs, 14-SOIC. Active production, ROHS3. Order via RFQ.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, 74HCS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Series":"Automotive, AEC-Q100, 74HCS","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Schmitt Trigger Input","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 ~ 125°C","Input Logic Level - Low":"1V ~ 3V","Supplier Device Package":"14-SOIC","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":"$0.65","priceTiers":[{"qty":1,"price":"$0.65000","currency":"USD"},{"qty":10,"price":"$0.55300","currency":"USD"},{"qty":25,"price":"$0.51560","currency":"USD"},{"qty":100,"price":"$0.41260","currency":"USD"},{"qty":250,"price":"$0.38308","currency":"USD"},{"qty":500,"price":"$0.32414","currency":"USD"},{"qty":1000,"price":"$0.25048","currency":"USD"},{"qty":2500,"price":"$0.22838","currency":"USD"},{"qty":5000,"price":"$0.21364","currency":"USD"},{"qty":12500,"price":"$0.20850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/753c464e489fa008ce1feecc5f0de404.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HCS266QDRQ1/alternatives.json"},"ai":{"faq":[{"question":"What is the input logic threshold for the SN74HCS266QDRQ1 at 5V?","answer":"The low-level input threshold is 1V to 3V and the high-level threshold is 1.5V to 4.2V across the supply range. At 5V VCC, the typical switching point is around 2.5V due to the Schmitt-trigger hysteresis."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS266QDRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS266QDRQ1 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}}