{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4444Q0022KE1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4444Q0022KE1T","canonicalUrl":"https://icboms.com/microchip/DSC400-4444Q0022KE1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4444Q0022KE1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC400 series, XO (Standard) MEMS oscillator, four outputs: 125 MHz, 100 MHz, 100 MHz, 125 MHz, HCSL, 2.25V–3.6V supply, -20°C~70°C, 20-VFQFN Exposed Pad","salesMarkdown":"## Four-output MEMS clock source for PCIe and Ethernet reference This frequency set directly serves PCIe Gen 1/2/3 reference clocks (100 MHz) and Ethernet MAC/PHY or SerDes reference (125 MHz) on the same device. Supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails without a separate regulator. ## Package, temperature grade, and sourcing posture Housed in a 20-VFQFN Exposed Pad (5.00 mm x 3.20 mm, 0.90 mm height), the part requires a thermal pad on the PCB for proper heat dissipation.","metaTitle":"DSC400-4444Q0022KE1T MEMS XO – 125/100 MHz HCSL, Active","metaDescription":"Microchip DSC400-4444Q0022KE1T XO (Standard) MEMS oscillator, four outputs: 125 MHz, 100 MHz, 100 MHz, 125 MHz. HCSL output, 2.25V–3.6V supply, -20°C to 70°C.","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":"125MHz","Frequency - Output 2":"100MHz","Frequency - Output 3":"100MHz","Frequency - Output 4":"125MHz","Operating Temperature":"-20°C~70°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/DSC400-4444Q0022KE1T/alternatives.json"},"ai":{"faq":[{"question":"What is the output frequency of DSC400-4444Q0022KE1T?","answer":"The device provides four outputs: two at 125 MHz and two at 100 MHz, all HCSL logic levels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4444Q0022KE1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4444Q0022KE1T 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}}