{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4444Q0023KE2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4444Q0023KE2T","canonicalUrl":"https://icboms.com/microchip/DSC400-4444Q0023KE2T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4444Q0023KE2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO (Standard), dual-output 100 MHz and 156.25 MHz, HCSL, ±25 ppm stability, 2.25-3.6V supply, enable/disable, 20-VFQFN exposed pad, -20°C~70°C.","salesMarkdown":"## MEMS XO with dual HCSL outputs at 100 MHz and 156.25 MHz The DSC400-4444Q0023KE2T is a MEMS-based XO (Standard) from Microchip's DSC400 series, delivering two fixed output frequencies: 100 MHz on Output 1 and 156.25 MHz on Output 2, both in HCSL logic levels. It operates from a 2.25V to 3.6V supply, covering both 2.5V and 3.3V rails without an external regulator, and includes an enable/disable function for power management. No official replacement or successor has been issued; the DSC400 series continues as the current-generation MEMS clock generator family from Microchip. ## 20-VFQFN package and board integration Housed in a 20-VFQFN exposed-pad package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm, the DSC400-4444Q0023KE2T requires a thermal pad on the PCB for heat dissipation and mechanical stability.","metaTitle":"DSC400-4444Q0023KE2T MEMS XO – 100 MHz & 156.25 MHz HCSL","metaDescription":"Microchip DSC400-4444Q0023KE2T: MEMS XO, dual-output 100 MHz & 156.25 MHz, HCSL, ±25 ppm stability, 2.25-3.6V supply, enable/disable, 20-QFN.","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":"156.25MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/17298f21a67a7945826b04ab2911ec92.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output type of DSC400-4444Q0023KE2T?","answer":"The output is HCSL (High-Speed Current Steering Logic), a differential standard commonly used for PCIe and other high-speed clock distribution."},{"question":"Does DSC400-4444Q0023KE2T have an enable/disable function?","answer":"Yes, it includes an enable/disable function, allowing the outputs to be tri-stated for power savings or system-level clock gating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4444Q0023KE2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4444Q0023KE2T 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}}