{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4444Q0030KI1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4444Q0030KI1T","canonicalUrl":"https://icboms.com/microchip/DSC400-4444Q0030KI1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4444Q0030KI1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard) MEMS oscillator, 4 outputs 100 MHz HCSL, ±50 ppm stability, 2.25-3.6V supply, -40°C to 85°C, 20-VFQFN exposed pad","salesMarkdown":"## Four 100 MHz HCSL outputs from a single MEMS resonator HCSL (High-Speed Current Steering Logic) is the standard clock format for PCI Express reference clocks — the 100 MHz frequency matches the PCIe Gen 1/2/3 reference clock requirement, so this part can serve as the PCIe root-complex clock source. The supply voltage range of 2.25V to 3.6V covers both 2.5V and 3.3V rails — no separate LDO is needed when the board uses either rail, and the part tolerates the ripple from a switching regulator as long as it stays within the absolute-maximum rating.","metaTitle":"DSC400-4444Q0030KI1T MEMS XO – 4×100 MHz HCSL, Active","metaDescription":"Microchip DSC400-4444Q0030KI1T: MEMS XO, 4 outputs at 100 MHz HCSL, ±50 ppm stability, 2.25-3.6V supply, -40°C to 85°C. Active production.","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":"100MHz","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b1fa89bbb593bb9f15bbf883a84023ea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC400-4444Q0030KI1T/alternatives.json"},"ai":{"faq":[{"question":"What is the output type of the DSC400-4444Q0030KI1T?","answer":"The output is HCSL (High-Speed Current Steering Logic), the standard for PCI Express reference clocks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4444Q0030KI1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4444Q0030KI1T 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}}