{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS125QDRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS125QDRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS125QDRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS125QDRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74HCS125QDRQ1, Automotive AEC-Q100 74HCS series, quad non-inverting buffer with 3-state outputs, Schmitt-trigger inputs, 2V–6V supply, 14-SOIC package, –40°C to 125°C.","salesMarkdown":"## Quad buffer with Schmitt-trigger inputs — why the automotive buyer picks this over a generic 74HC125 The TI SN74HCS125QDRQ1 is a quad non-inverting buffer with independent 3-state outputs, each channel gated by its own output-enable pin. What sets it apart from a standard 74HC125 is the Schmitt-trigger input stage on every channel — it cleans up edges on slow or noisy lines coming off a connector or a long PCB trace, which is exactly the kind of signal you see on an automotive harness or an industrial sensor interface. ## 2V to 6V supply — one buffer for mixed-voltage boards If your BOM has a 3.3V MCU talking to a 5V peripheral, this buffer can sit on either rail and still meet the input thresholds of the other side. Treat it as a signal-conditioning gate, not a line driver. The 125°C ambient rating matches the under-hood and motor-drive temperature profile. Many 74-series buffers stop at 85°C. If your design lives in an outdoor telecom cabinet, an engine ECU, or a factory-floor sensor pod, this part keeps its timing and output drive over the full range without derating. ROHS3 compliant.","metaTitle":"SN74HCS125QDRQ1 – TI Automotive 74HCS Buffer, 3-State","metaDescription":"TI SN74HCS125QDRQ1 automotive-grade quad buffer with Schmitt-trigger inputs, 2V–6V supply, 3-state outputs, –40°C to 125°C. AEC-Q100.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, 74HCS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"Automotive, AEC-Q100, 74HCS","Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"Schmitt Trigger","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"4","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"14-SOIC","Current - Output High, Low":"7.8mA, 7.8mA","Number of Bits per Element":"1"}},"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/36f003b373fc0e0b2c547e14bea9706d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HCS125QDRQ1/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to SN74HCS125QDRQ1?","answer":"The SN74LVC2G17QDCKRQ1 is a different part — it is a dual buffer with push-pull outputs (no 3-state), operates down to 1.65V, and comes in a 6-pin SC-70 package. It is not a pin-for-pin replacement for the quad 14-SOIC SN74HCS125QDRQ1. If you need a drop-in alternative, look for other AEC-Q100 quad buffers in 14-SOIC with Schmitt-trigger inputs and 3-state outputs; the 74HCS family is relatively new, so cross-sourcing options are limited."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS125QDRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS125QDRQ1 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}}