{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC125DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC125DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC125DR","factsUrl":"https://icboms.com/api/mcp/products/SN74HC125DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series SN74HC125DR, Quad Buffer Non-Inverting, 3-State Output, 2V–6V Supply, 7.8 mA per channel, -40°C to 85°C, 14-SOIC.","salesMarkdown":"Each of the four independent buffers has its own output-enable pin (active low), letting you gate each channel individually. ## Where it fits — typical use cases This buffer is a go-to for bus isolation, signal fan-out, and driving a shared data bus where you need to disconnect the output when it is not addressed. The 3-state outputs let multiple devices share a common line — think memory data buses, peripheral chip-select gating, or level-translating between 5V and 3.3V domains (the 2V–6V supply range covers both). ## Supply range and drive — what the numbers mean The 3-state outputs go high-impedance when the corresponding output-enable pin is pulled high, which is how you share a bus without contention.","metaTitle":"SN74HC125DR 74HC Quad 3-State Buffer, 2V–6V, 14-SOIC","metaDescription":"Texas Instruments SN74HC125DR — quad non-inverting 3-state buffer, 2V–6V supply, 7.8 mA drive, -40°C to 85°C, 14-SOIC. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74HC","Package":"Tape & Reel (TR); Cut Tape (CT)","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 ~ 85°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":"$0.44","priceTiers":[{"qty":1,"price":"$0.44000","currency":"USD"},{"qty":10,"price":"$0.37800","currency":"USD"},{"qty":25,"price":"$0.35240","currency":"USD"},{"qty":100,"price":"$0.28200","currency":"USD"},{"qty":250,"price":"$0.26184","currency":"USD"},{"qty":500,"price":"$0.22154","currency":"USD"},{"qty":1000,"price":"$0.17119","currency":"USD"},{"qty":2500,"price":"$0.15608","currency":"USD"},{"qty":5000,"price":"$0.14602","currency":"USD"},{"qty":12500,"price":"$0.14250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/eb04f2c26f217df1aa43f20a5b6125a0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HC125DR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between SN74HC125DR and SN74HCT125D?","answer":"The SN74HC125DR is a standard 74HC (high-speed CMOS) device with a 2V–6V supply range and CMOS-level input thresholds. The SN74HCT125D is a 74HCT variant that uses TTL-compatible input thresholds, making it a direct drop-in replacement for older 74LS or 74TTL logic running on a 5V supply. Both are quad 3-state buffers in the same 14-SOIC footprint, but the HCT version is specifically designed to interface with TTL logic levels."},{"question":"Can SN74HC125DR be used as a level shifter between 5V and 3.3V?","answer":"Yes, within limits. With a 3.3V supply on the buffer, a 5V input will be recognised as a logic high because the 74HC input threshold is typically around 0.7 × VCC (about 2.3V at 3.3V supply). The output will swing rail-to-rail (0V to 3.3V). For the reverse direction (3.3V to 5V), you would power the buffer at 5V and drive the input with a 3.3V signal — the 74HC input threshold at 5V is about 3.5V, so a 3.3V signal may not reliably register as high. A 74HCT or 74LVC part is better suited for that direction."},{"question":"Is SN74HC125DR RoHS compliant and lead-free?","answer":"Yes, the SN74HC125DR is ROHS3 compliant, meaning it meets the latest RoHS directive restrictions on hazardous substances including lead."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC125DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC125DR 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}}