{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK00304SQ/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK00304SQ-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMK00304SQ-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMK00304SQ%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK00304SQ/NOPB, Fanout Buffer (Distribution), Multiplexer, Translator, 3.1 GHz, 3.15V to 3.45V, 32-WQFN (5x5), -40°C to 85°C.","salesMarkdown":"## Active clock distribution: 3.1 GHz, multi-protocol, 3:5 fanout The Texas Instruments LMK00304SQ/NOPB is a fanout buffer, multiplexer, and level translator in one device, designed for high-speed clock distribution in communications and data-center equipment. It accepts CML, HCSL, HSTL, LVDS, LVPECL, SSTL, or crystal inputs and outputs HCSL, LVCMOS, LVDS, or LVPECL levels, with a 3:1 input selector feeding a 1:5 fanout buffer. The 3.1 GHz maximum frequency covers PCIe Gen4/5, 100G Ethernet, and JESD204B clock trees. A 3.1 GHz differential buffer handles the fundamental clock rates for 25 Gbps NRZ SerDes and 56 Gbps PAM-4 retimers without needing a separate divider or PLL. The fully differential signal path (input and output both differential-capable) preserves signal integrity across the fanout — important when the trace length from buffer to multiple ASICs or FPGAs exceeds a few inches. The supply range is 3.15 V to 3.45 V, a tight ±4.5 % window around 3.3 V. This means the board's 3.3 V rail must be a regulated supply, not a raw bus. The WQFN package with exposed pad keeps junction temperature under control even at maximum frequency and fanout.","metaTitle":"Texas Instruments LMK00304SQ/NOPB Fanout Buffer, 3.1 GHz","metaDescription":"Texas Instruments LMK00304SQ/NOPB fanout buffer/multiplexer/translator, 3.1 GHz max, 3:5 input:output, -40°C to 85°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"Fanout Buffer (Distribution), Multiplexer, Translator","Input":"CML, HCSL, HSTL, LVDS, LVPECL, SSTL, Crystal","Output":"HCSL, LVCMOS, LVDS, LVPECL","Series":"-","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Part Status":"Active","Manufacturer":"Texas Instruments","Mounting Type":"Surface Mount","Package / Case":"32-WFQFN Exposed Pad","Frequency - Max":"3.1 GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Number of Circuits":"1","Base Product Number":"LMK00304","Ratio - Input:Output":"3:5","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"32-WQFN (5x5)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.4000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ccd8bf3fd4ecbc0625e63e0b3318c8f8.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK00304SQ-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK00304SQ-NOPB 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}}