{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AHC125RGYR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AHC125RGYR","canonicalUrl":"https://icboms.com/texas-instruments/SN74AHC125RGYR","factsUrl":"https://icboms.com/api/mcp/products/SN74AHC125RGYR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AHC series, Buffer, Non-Inverting, 3-State, 4-element, 1-bit per element, 8mA output, 2V to 5.5V supply, -40°C to 125°C, 14-VFQFN Exposed Pad, 14-VQFN (3.5x3.5).","salesMarkdown":"## Quad 3-state buffer with wide supply tolerance The SN74AHC125RGYR is a quad non-inverting buffer with independent 3-state outputs, one per element, from Texas Instruments' 74AHC family. Each of the four buffers drives up to 8 mA source or sink at the output, and the 3-state control lets you isolate the bus when the output is not needed — the classic signal-routing trick for shared data lines. ## What the 8 mA output drive means on the bench 8 mA per channel is enough to light a standard LED (with a series resistor), drive the input of another CMOS gate, or switch a small MOSFET gate at moderate speed. It will not drive a relay coil directly — that needs a transistor or a driver IC. The 3-state high-impedance state (Hi-Z) on each output lets multiple buffers share a bus line; the one with its output enable pulled low drives the line, the rest float. The 14-VQFN package (3.5 mm × 3.5 mm) with exposed thermal pad needs a PCB land pattern that ties the pad to a ground plane for heat sinking. The pad is not electrically connected internally, but a thermal via array under it keeps the junction temperature down when all four outputs are sourcing simultaneously. ## Active production and compliance status The tape-and-reel packaging is the standard delivery for this QFN package; cut-tape quantities are also available for prototype or low-volume builds.","metaTitle":"SN74AHC125RGYR Texas Instruments Buffer, 2V-5.5V, 14-VQFN","metaDescription":"SN74AHC125RGYR quad non-inverting buffer with 3-state outputs. 2V to 5.5V supply, 8mA drive, -40°C to 125°C. Active, RoHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"74AHC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"74AHC","Package":"Tape & Reel (TR); Cut Tape (CT)","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"14-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Number of Elements":"4","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"14-VQFN (3.5x3.5)","Current - Output High, Low":"8mA, 8mA","Number of Bits per Element":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.42","priceTiers":[{"qty":1,"price":"$0.42000","currency":"USD"},{"qty":10,"price":"$0.36200","currency":"USD"},{"qty":25,"price":"$0.33760","currency":"USD"},{"qty":100,"price":"$0.27010","currency":"USD"},{"qty":250,"price":"$0.25080","currency":"USD"},{"qty":500,"price":"$0.21222","currency":"USD"},{"qty":1000,"price":"$0.16398","currency":"USD"},{"qty":3000,"price":"$0.14951","currency":"USD"},{"qty":6000,"price":"$0.13987","currency":"USD"},{"qty":15000,"price":"$0.13650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/720f3f78d0ed75a59d66b241a8b2748b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74AHC125RGYR/alternatives.json"},"ai":{"faq":[{"question":"Can SN74AHC125RGYR replace SN74LVTH16245ADGVR in a design?","answer":"No — these are not pin-compatible or functional drop-in replacements. The SN74LVTH16245ADGVR is a 16-bit transceiver with 32 mA output drive in a different package (TSSOP), while the SN74AHC125RGYR is a quad buffer with 8 mA drive in a 14-VQFN. The bus width, drive strength, and pinout are all different."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AHC125RGYR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AHC125RGYR 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}}