{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0444Q0009KI1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0444Q0009KI1T","canonicalUrl":"https://icboms.com/microchip/DSC400-0444Q0009KI1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0444Q0009KI1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, 100 MHz × 3 HCSL outputs, ±50 ppm stability, 2.25 V–3.6 V supply, -40°C to 85°C, 20-VFQFN exposed-pad package, active production.","salesMarkdown":"## MEMS XO with three HCSL lanes HCSL (High-Speed Current Steering Logic) is the common reference clock standard for PCIe interfaces — this part directly drives the differential clock inputs on a PCIe switch or root complex without external level translation. ## Supply voltage and temperature envelope Operates from 2.25 V to 3.6 V, covering the common 2.5 V and 3.3 V rail voltages used in networking and industrial logic. ## Frequency stability and enable/disable function","metaTitle":"DSC400-0444Q0009KI1T MEMS XO – HCSL Output, 100 MHz, Active","metaDescription":"Microchip DSC400-0444Q0009KI1T MEMS XO, 3x 100 MHz HCSL outputs, ±50 ppm stability, -40°C to 85°C, 20-VFQFN. Active lifecycle, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Height":"0.035\\\" (0.90mm)","Output":"HCSL","Series":"DSC400","Package":"Tape & Reel (TR)","Function":"Enable/Disable","Base Resonator":"MEMS","Package / Case":"20-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC400","Frequency Stability":"±50ppm","Frequency - Output 1":"100MHz","Frequency - Output 2":"100MHz","Frequency - Output 3":"100MHz","Frequency - Output 4":"-","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b247d1214c1ba7a1d3d65d986154f631.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC400-0444Q0009KI1T/alternatives.json"},"ai":{"faq":[{"question":"What is the output type of the DSC400-0444Q0009KI1T?","answer":"HCSL (High-Speed Current Steering Logic) — the differential output standard used for PCIe reference clocks. It directly drives a PCIe clock input without external translation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0444Q0009KI1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0444Q0009KI1T 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}}