{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0444Q0009KI2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0444Q0009KI2T","canonicalUrl":"https://icboms.com/microchip/DSC400-0444Q0009KI2T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0444Q0009KI2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO (Standard), quad 100 MHz HCSL outputs, ±25 ppm stability, 2.25-3.6 V supply, -40 to 85°C, 20-VFQFN exposed pad package","salesMarkdown":"## Active production — quad 100 MHz HCSL clock source The DSC400-0444Q0009KI2T is an active-production MEMS-based XO from Microchip's DSC400 series, delivering four 100 MHz HCSL outputs from a single 20-VFQFN package. It is a standard XO with enable/disable function, covering the 2.25 V to 3.6 V supply range. The ±25 ppm frequency stability holds across the full -40 to 85°C industrial temperature range, which suits outdoor telecom, factory automation, and engine-bay applications where a quartz crystal would drift more under thermal cycling. ## Four HCSL lanes from a MEMS resonator All four outputs are 100 MHz HCSL (High-Speed Current Steering Logic) — the same signalling used for PCIe reference clocks. Rated -40 to 85°C ambient, the DSC400-0444Q0009KI2T is qualified for environments where the board sees seasonal outdoor extremes or internal heat from adjacent power stages. The 20-VFQFN package with exposed pad (5.00 mm x 3.20 mm, 0.90 mm height) requires a thermal via array under the pad to draw heat into the ground plane — the pad is the primary thermal path, not the moulded body. Microchip lists the DSC400-0444Q0009KI2T as Active.","metaTitle":"DSC400-0444Q0009KI2T Microchip MEMS XO, Quad 100 MHz HCSL","metaDescription":"DSC400-0444Q0009KI2T: Microchip MEMS XO (Standard), quad 100 MHz HCSL outputs, ±25 ppm stability, -40 to 85°C, 20-VFQFN. Active production. Request quote.","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":"±25ppm","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b247d1214c1ba7a1d3d65d986154f631.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order DSC400-0444Q0009KI2T or request a quote?","answer":"The DSC400-0444Q0009KI2T is an active-production part. Submit an RFQ with your target quantity — we source through independent distribution and confirm availability and pricing per order. No stock-holding is implied; every quote is current at the time of request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0444Q0009KI2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0444Q0009KI2T 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}}