{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4444Q0059KE1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4444Q0059KE1T","canonicalUrl":"https://icboms.com/microchip/DSC400-4444Q0059KE1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4444Q0059KE1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard), MEMS-based, four HCSL outputs at 100 MHz and 125 MHz, ±50 ppm stability, 2.25-3.6 V supply, -20°C to 70°C, 20-VFQFN exposed pad, active production.","salesMarkdown":"## Four HCSL outputs from one MEMS die The DSC400-4444Q0059KE1T is a MEMS-based XO that delivers four independent HCSL outputs — each bank set to 100 MHz or 125 MHz — from a single 5.00 mm x 3.20 mm 20-VFQFN package. That means one oscillator replaces four discrete cans on the board, saving layout space and reducing the BOM line count for PCIe Gen 1/2/3 reference clocks or Ethernet switch core timing. ## Supply range and temperature envelope Operates from 2.25 V to 3.6 V, so it sits comfortably on a 3.3 V or 2.5 V rail without an extra LDO — the wide range covers both common logic supplies. The MEMS resonator construction means typical lead times are shorter than quartz-based oscillators, which is a practical advantage when filling a BOM line on a tight schedule.","metaTitle":"DSC400-4444Q0059KE1T MEMS XO – 4x HCSL Outputs, 100/125 MHz","metaDescription":"Active Microchip DSC400 MEMS oscillator with four 100/125 MHz HCSL outputs, ±50 ppm stability, 2.25-3.6 V supply. Sourced per RFQ.","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, 125MHz","Frequency - Output 2":"100MHz, 125MHz","Frequency - Output 3":"100MHz, 125MHz","Frequency - Output 4":"100MHz, 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/DSC400-4444Q0059KE1T/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4444Q0059KE1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4444Q0059KE1T 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}}