{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-3333Q0078KE1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-3333Q0078KE1T","canonicalUrl":"https://icboms.com/microchip/DSC400-3333Q0078KE1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-3333Q0078KE1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS-based XO (Standard), four LVDS outputs each at 125 MHz, ±50 ppm stability, enable/disable function, 20-VFQFN exposed-pad package, -20°C to 70°C operating range.","salesMarkdown":"## Four 125 MHz LVDS outputs from a MEMS resonator Frequency stability is held to ±50 ppm across the full -20°C to 70°C commercial range, which keeps the clock edge jitter within the setup/hold budget of a 10/100/1000 Ethernet PHY or a DDR3 memory controller without external re-timing. Housed in a 20-VFQFN with exposed pad, the 5.00 mm x 3.20 mm footprint is a common clock-generator land pattern. Supply voltage spans 2.25 V to 3.6 V, so the same BOM line works across a 2.5 V FPGA bank and a 3.3 V ASIC clock input without a separate level translator. The 0.90 mm seated height clears the 1.0 mm keep-out zone under a mezzanine card — a detail that matters when the oscillator sits on the bottom side of a dense backplane board. Product status is Active per Microchip's current portfolio. The DSC400 series is the MEMS-based replacement for the older quartz DSC1001/DSC2001 families. If your BOM currently carries a 125 MHz LVDS quartz oscillator in a 7.0 mm x 5.0 mm package, the DSC400-3333Q0078KE1T shrinks the footprint by 55 % and removes the external load capacitors.","metaTitle":"DSC400-3333Q0078KE1T MEMS XO – 4x 125 MHz LVDS, Active","metaDescription":"Microchip DSC400-3333Q0078KE1T MEMS XO, 4 outputs at 125 MHz LVDS, ±50 ppm stability, -20°C to 70°C, 20-VFQFN.","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":"LVDS","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":"125MHz","Frequency - Output 3":"125MHz","Frequency - Output 4":"125MHz","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/dd7ea8057f52cb2d20f50975e5b8d842.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to DSC400-3333Q0078KE1T?","answer":"Within the DSC400 series, any variant sharing the same 20-VFQFN package and supply voltage range is footprint-compatible. The key difference is the output frequency configuration — confirm that the alternative's output frequencies match your clock-tree requirements before substituting."},{"question":"Can DSC400-3333Q0078KE1T replace a standard quartz oscillator?","answer":"Yes — the MEMS resonator is a drop-in functional replacement for a quartz XO with the same output type and frequency. The MEMS part offers faster start-up (typically <5 ms vs 10 ms for quartz) and better shock/vibration immunity, which is relevant for equipment that ships with the oscillator soldered in place."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-3333Q0078KE1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-3333Q0078KE1T 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}}