{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"74AHC1G126DCKTE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"74AHC1G126DCKTE4","canonicalUrl":"https://icboms.com/texas-instruments/74AHC1G126DCKTE4","factsUrl":"https://icboms.com/api/mcp/products/74AHC1G126DCKTE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AHC1G126DCKTE4, Series 74AHC, Buffer Non-Inverting, 3-State, 1 Element, 1 Bit per Element, 8mA Output, 2V-5.5V Supply, Surface Mount, SC-70-5, -40°C to 125°C.","salesMarkdown":"## Single-gate buffer for mixed-voltage buses The Texas Instruments 74AHC1G126DCKTE4 is a single-bit non-inverting buffer with a 3-state output, part of the 74AHC logic family. The output delivers 8mA source and sink, enough to drive a handful of CMOS inputs or a short PCB trace without an extra line driver. ## 2V to 5.5V supply — covers the common rails The supply range spans 2V to 5.5V, so the same part works on a 3.3V MCU bus, a 5V legacy peripheral, or a 2.5V FPGA I/O bank. No level translator needed when the buffer sits between a 3.3V controller and a 5V sensor — the input threshold tracks VCC. At 3.3V the part is fully specified; at 5V the output drive stays at 8mA, which keeps the thermal dissipation predictable. ## 8mA output — fan-out and drive budget With 8mA output high and 8mA output low, the buffer can drive up to ten 74AHC inputs (each loads about 0.8mA at 5V) or a single optocoupler LED with a series resistor. For heavier loads — a relay coil or a long cable — you will want a discrete transistor or a bus driver with higher current rating. The 3-state output lets you share a data line with other drivers; the high-impedance state floats the output cleanly. The 125°C ceiling also covers the hot side of a power supply or a motor-drive control board near the heatsink. ## SC-70-5 package — tight footprint Housed in a 5-lead SC-70-5 (also called SOT-353), the part occupies about 2.0 mm × 2.1 mm of board area. That is small enough to slip into a cramped corner of a multi-layer PCB where a larger SOIC-8 would not fit. The leads are on a 0.65 mm pitch, so standard fine-pitch soldering works; no special stencil required.","metaTitle":"74AHC1G126DCKTE4 Buffer, Non-Inverting, 3-State, 2V-5.5V","metaDescription":"Texas Instruments 74AHC1G126DCKTE4 single non-inverting buffer with 3-state output. Supply 2V-5.5V, 8mA drive, -40°C to 125°C. Active lifecycle.","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)","Input Type":"-","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Number of Elements":"1","Base Product Number":"74AHC1G126","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SC-70-5","Current - Output High, Low":"8mA, 8mA","Number of Bits per Element":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a0212b9f42a474378210591f271e27ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/74AHC1G126DCKTE4/alternatives.json"},"ai":{"faq":[{"question":"What is the output current of 74AHC1G126DCKTE4?","answer":"The output can source or sink 8mA."},{"question":"Is 74AHC1G126DCKTE4 a non-inverting buffer?","answer":"Yes, it is a non-inverting buffer with a 3-state output."},{"question":"What package does 74AHC1G126DCKTE4 come in?","answer":"It comes in a 5-lead SC-70-5 (SOT-353) surface-mount package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/74AHC1G126DCKTE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/74AHC1G126DCKTE4 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}}