{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4444Q0030KI1","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4444Q0030KI1","canonicalUrl":"https://icboms.com/microchip/DSC400-4444Q0030KI1","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4444Q0030KI1","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard), MEMS base resonator, 4 outputs at 100MHz each, HCSL, ±50ppm stability, -40°C~85°C, 2.25V~3.6V supply, 20-VFQFN exposed pad package","salesMarkdown":"## Four 100 MHz HCSL lanes from one MEMS die The DSC400-4444Q0030KI1 packs four independent 100 MHz HCSL outputs into a single 20-VFQFN package — no external fanout buffer needed for a four-lane PCIe reference clock tree. ## Supply tolerance and temperature grade Runs on any rail from 2.25 V to 3.6 V — a 2.5 V or 3.3 V supply works without a dedicated LDO, and the wide tolerance absorbs ripple from a switching regulator. The part holds its 100 MHz within 5 kHz across the full temperature swing, which keeps the PCIe reference clock within the ±300 ppm window required by the base spec. ## Enable/Disable function and package footprint The 5.00 mm x 3.20 mm body and 0.90 mm height fit the same footprint as many standard 4-output clock generators.","metaTitle":"DSC400-4444Q0030KI1 MEMS XO – 4x 100MHz HCSL, Active","metaDescription":"Microchip DSC400-4444Q0030KI1: 4-output 100MHz HCSL XO, ±50ppm, -40~85°C, 2.25-3.6V, 20-VFQFN. Active production – RFQ for pricing and lead time.","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":"Tube","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/DSC400-4444Q0030KI1/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4444Q0030KI1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4444Q0030KI1 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}}