{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"74AHC1G125DBVTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"74AHC1G125DBVTG4","canonicalUrl":"https://icboms.com/texas-instruments/74AHC1G125DBVTG4","factsUrl":"https://icboms.com/api/mcp/products/74AHC1G125DBVTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AHC1G125DBVTG4, Series 74AHC, Buffer Non-Inverting, 3-State, 1 Element, 1 Bit per Element, 8mA Output, 2V to 5.5V Supply, SOT-23-5, -40°C to 125°C.","salesMarkdown":"The Texas Instruments 74AHC1G125DBVTG4 is a single-bit, non-inverting buffer with a 3-state output, belonging to the 74AHC logic family. It takes a single input and drives a single output with the same logic level, but the output can be placed into a high-impedance state via the output-enable control (active-low, internal pull-up). This makes it useful for bus isolation, signal gating, or driving shared data lines where multiple drivers contend for the same wire. Output drive is symmetric at 8mA source and 8mA sink, enough to drive a handful of CMOS inputs or a small LED indicator through a series resistor. Packaged in a SOT-23-5 (SC-74A) footprint, it fits tight board layouts where a full SOIC-8 or larger package would waste space. The 5-pin configuration includes the usual VCC, GND, input A, output Y, and output-enable (OE) pins. ## Supply voltage and level-shifting capability The 2V to 5.5V supply range means this buffer can operate on a 3.3V rail and still accept 5V-tolerant inputs? Not exactly — the 74AHC family inputs are not 5V-tolerant when powered at 3.3V; the input high threshold scales with VCC. For level shifting from a 5V output to a 3.3V input, the 74AHC1G125 can work if the 5V signal is within the absolute maximum ratings (typically VCC + 0.5V), but a dedicated level translator or an AHC part with overvoltage-tolerant inputs is safer. For 3.3V to 5V translation, the 3-state output can drive a 5V rail when VCC = 5V, but the input must be at 3.3V logic levels, which the AHC family accepts as high. The part is not subject to allocation or factory lead-time delays typical of high-volume commodity logic families.","metaTitle":"74AHC1G125DBVTG4 Buffer, Non-Inverting, 3-State, SOT-23-5","metaDescription":"Texas Instruments 74AHC1G125DBVTG4 single buffer with 3-state output, 2V to 5.5V supply, -40°C to 125°C. Active lifecycle, SOT-23-5 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Series":"74AHC","Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"-","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Number of Elements":"1","Base Product Number":"74AHC1G125","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-5","Current - Output High, Low":"8mA, 8mA","Number of Bits per Element":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b51c1efe42b8af8a411d01ad16a968ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/74AHC1G125DBVTG4/alternatives.json"},"ai":{"faq":[{"question":"What is the function of 74AHC1G125DBVTG4?","answer":"It is a single-bit, non-inverting buffer with a 3-state output. The output can be disabled (high-impedance) via the active-low output-enable pin, allowing the device to isolate or gate a digital signal on a shared bus."},{"question":"Can 74AHC1G125DBVTG4 be used for level shifting?","answer":"It can be used for unidirectional level shifting within its supply range. For example, a 3.3V input can drive a 5V output when VCC = 5V, because the AHC input threshold at 5V VCC accepts 3.3V as a logic high. For 5V-to-3.3V translation, the input may exceed the recommended input voltage when VCC = 3.3V, so a dedicated level translator or a 5V-tolerant logic family is preferred."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/74AHC1G125DBVTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/74AHC1G125DBVTG4 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}}