{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0444Q0009KE1","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0444Q0009KE1","canonicalUrl":"https://icboms.com/microchip/DSC400-0444Q0009KE1","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0444Q0009KE1","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC400 series, XO (Standard), MEMS base, 4x 100 MHz HCSL outputs, 2.25V–3.6V supply, Enable/Disable, -20°C~70°C, 20-VFQFN exposed pad.","salesMarkdown":"## MEMS quad-output oscillator for clock trees The DSC400-0444Q0009KE1 is a MEMS-based XO (Standard) that delivers four 100 MHz HCSL outputs from a single 5.00mm x 3.20mm package — a direct replacement for multiple quartz oscillators on a clock tree, saving board area and reducing BOM count. The HCSL (High-Speed Current Steering Logic) output is common in PCIe and Ethernet reference clock applications; it drives 50-ohm terminated lines without external pull-up resistors. A 2.25V to 3.6V supply range means the oscillator runs on 2.5V or 3.3V rails without a separate regulator — one less part to source and place. ## Supply flexibility and enable control","metaTitle":"DSC400-0444Q0009KE1 MEMS XO – 100 MHz HCSL, Active","metaDescription":"DSC400-0444Q0009KE1 XO (Standard) from Microchip Technology. MEMS-based, 4x 100 MHz HCSL outputs, 2.25V–3.6V supply, Enable/Disable. Active lifecycle.","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":"-","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b247d1214c1ba7a1d3d65d986154f631.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC400-0444Q0009KE1/alternatives.json"},"ai":{"faq":[{"question":"Is the DSC400-0444Q0009KE1 compatible with a 2.5V supply?","answer":"Yes. The supply voltage range is 2.25V to 3.6V, so 2.5V is well within the operating window — no additional regulator is needed."},{"question":"Can the DSC400-0444Q0009KE1 replace a quartz crystal oscillator?","answer":"It replaces a quartz-based XO (oscillator module), not a bare quartz crystal. The MEMS resonator inside is more shock- and vibration-tolerant than quartz and starts up faster, but the board must already have the power and ground connections for an active oscillator — a crystal requires an external inverter circuit."},{"question":"What is the output waveform of the DSC400-0444Q0009KE1?","answer":"The output is HCSL (High-Speed Current Steering Logic), a differential current-mode logic family. It drives 50-ohm terminated lines directly and does not need external pull-up resistors — the output current is steered into the termination."},{"question":"Does the DSC400-0444Q0009KE1 have an enable/disable function?","answer":"Yes. The Enable/Disable pin lets you put the outputs into a high-impedance state, which is useful for power sequencing, test modes, or low-power standby."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0444Q0009KE1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0444Q0009KE1 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}}