{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS541QWRKSRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS541QWRKSRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS541QWRKSRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS541QWRKSRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74HCS541QWRKSRQ1 automotive octal buffer/line driver, non-inverting, Schmitt-trigger inputs, 3-state outputs, 2V to 6V supply, 7.8mA output drive, -40°C to 125°C, 20-VFQFN with wettable flank.","salesMarkdown":"That makes it a straightforward choice for both prototype builds and production runs without scrambling for a drop-in replacement mid-cycle. Cold-crank at -40°C and hot-soak at 125°C are both inside the guaranteed window, so no parametric derating is needed for those corners. ## Schmitt-trigger inputs — why they matter for 5V and 3.3V buses Schmitt-trigger inputs give this buffer built-in hysteresis, which cleans up slow edges and noisy signals on long PCB traces or cable runs. At 5V supply the switching thresholds sit well within standard TTL and CMOS levels, so it works as a drop-in for 5V logic systems without external conditioning. The same applies at 3.3V — the hysteresis absorbs the ringing from a poorly terminated bus. ## Wettable-flank QFN — a rework-friendly package The 20-VFQFN with wettable flank (2.5x4.5 mm body) is one of the more technician-friendly QFN packages. The exposed side pads give a visible solder fillet after reflow, so you can optically inspect the joint instead of relying on X-ray. Under the hot-air station the wettable flank wets out cleanly — lift the part, not the pad. ## Supply range 2V to 6V — one part for mixed-voltage boards The 2V to 6V supply range covers 3.3V and 5V rails without a separate level-shifter. On a mixed-voltage board you can run the buffer from the same 3.3V or 5V rail as the downstream logic, and the Schmitt-trigger inputs tolerate the slower edges from an upstream 3.3V microcontroller driving a 5V peripheral. The 7.8 mA symmetric output drive is enough for a few CMOS loads or a short backplane trace.","metaTitle":"SN74HCS541QWRKSRQ1 Octal Buffer, -40°C to 125°C, Active","metaDescription":"TI SN74HCS541QWRKSRQ1 automotive octal buffer with Schmitt-trigger inputs, 3-state outputs, 2V to 6V supply, -40°C to 125°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Reel (TR)","Input Type":"Schmitt Trigger","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount, Wettable Flank","Package / Case":"20-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"1","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-VQFN (2.5x4.5)","Current - Output High, Low":"7.8mA, 7.8mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.32892","priceTiers":[{"qty":3000,"price":"$0.32892","currency":"USD"},{"qty":6000,"price":"$0.32100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/713b155ad0fe68960c83e0158b1d11f5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HCS541QWRKSRQ1/alternatives.json"},"ai":{"faq":[{"question":"Can the SN74HCS541QWRKSRQ1 be used in 5V logic systems?","answer":"Yes. The supply voltage range of 2V to 6V includes 5V, and the Schmitt-trigger inputs accept standard 5V CMOS and TTL levels directly. The 7.8 mA output drive is compatible with 5V logic families."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS541QWRKSRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS541QWRKSRQ1 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}}