{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK00301ARHSR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK00301ARHSR","canonicalUrl":"https://icboms.com/texas-instruments/LMK00301ARHSR","factsUrl":"https://icboms.com/api/mcp/products/LMK00301ARHSR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK00301ARHSR Fanout Buffer (Distribution), Multiplexer, Translator, 3.1 GHz, 3:10 I/O, 48-WFQFN, Tape & Reel.","salesMarkdown":"## Active production — 3.1 GHz clock-tree workhorse The LMK00301ARHSR: Rated for a maximum frequency of 3.1 GHz, this buffer handles the upper end of PCIe Gen 4/5 reference clocks, 100G Ethernet, and JESD204B SYSREF distribution without marginal timing. ## 3:10 fanout with multi-protocol I/O Three selectable inputs accept CML, HCSL, HSTL, LVDS, LVPECL, SSTL, or a crystal oscillator — the part translates whichever protocol is on the active input to one of ten HCSL, LVCMOS, LVDS, or LVPECL outputs. The 3:10 ratio means a single device replaces a separate mux plus a fanout buffer, saving board area and reducing the number of active clock-tree components. Both input and output paths are differential-capable, so the part fits into a fully differential clock tree where common-mode noise rejection matters at GHz edge rates. ## Supply and thermal — narrow rail, exposed pad The supply range is 3.15 V to 3.45 V — a tight window that demands a clean, regulated rail. A 3.3 V LDO or switching regulator with low ripple is the typical feed; this is not a part for a wide-VIN bus. Single-circuit device — one buffer/mux/translator channel per package, not a multi-bank array. The base product number is LMK00301.","metaTitle":"Texas Instruments LMK00301ARHSR Clock Buffer, 3.1 GHz","metaDescription":"Texas Instruments LMK00301ARHSR active clock fanout buffer/mux/translator, 3.1 GHz max, 3:10 I/O, industrial temp. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","Type":"Fanout Buffer (Distribution), Multiplexer, Translator","Input":"CML, HCSL, HSTL, LVDS, LVPECL, SSTL, Crystal","Output":"HCSL, LVCMOS, LVDS, LVPECL","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Package / Case":"48-WFQFN Exposed Pad","Product Status":"Active","Frequency - Max":"3.1 GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Number of Circuits":"1","Base Product Number":"LMK00301","Ratio - Input:Output":"3:10","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-WQFN (7x7)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.2265","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a153b98bb208940d183b5059baf841c4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK00301ARHSR/alternatives.json"},"ai":{"faq":[{"question":"What input and output protocols does LMK00301ARHSR support?","answer":"The inputs accept CML, HCSL, HSTL, LVDS, LVPECL, SSTL, or a crystal oscillator. The outputs can be configured as HCSL, LVCMOS, LVDS, or LVPECL."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK00301ARHSR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK00301ARHSR 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}}