{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4244Q0023KE1","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4244Q0023KE1","canonicalUrl":"https://icboms.com/microchip/DSC400-4244Q0023KE1","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4244Q0023KE1","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC400 series, XO (Standard) MEMS oscillator, quad-output, 100 MHz / 156.25 MHz ×2 fixed frequencies, HCSL / LVPECL, 20-VFQFN exposed pad, tube pack","salesMarkdown":"## What this quad-output MEMS XO replaces on the BOM The DSC400-4244Q0023KE1 delivers four independent clock outputs from a single 20-VFQFN package: two at 100 MHz and two at 156.25 MHz. That replaces up to four discrete oscillators, collapsing the BOM line count and the board area they occupy. Its MEMS resonator base means the part handles the shock and vibration profile of a deployed switch or base station better than a quartz can — no start-up reliability surprises after the board ships. ## Supply rail and output logic — what fits where Supply range spans 2.25 V to 3.6 V, so a standard 3.3 V or 2.5 V rail works without an extra regulator. The outputs are HCSL or LVPECL — both common for PCIe reference clocks and high-speed SerDes. Confirm the receiver's termination scheme; HCSL needs no AC-coupling, LVPECL typically does. ## Temperature range and package — board-fit constraints Not for outdoor enclosures or engine bays without active thermal management. The 20-VFQFN with exposed pad measures 5.00 mm × 3.20 mm, 0.90 mm tall. Status is Active — no EOL notice, no last-time-buy window. This part can be designed into a new BOM today and sourced through standard distribution. No official second-source or pin-compatible drop-in from another manufacturer is recorded; the DSC400 series is Microchip-specific.","metaTitle":"DSC400-4244Q0023KE1 Quad-Output MEMS XO","metaDescription":"Active Microchip DSC400 quad-output MEMS oscillator. Four fixed frequencies: 100 MHz, 156.25 MHz. HCSL/LVPECL. 20-VFQFN, -20 to +70°C. 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, LVPECL","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":"156.25MHz","Frequency - Output 3":"156.25MHz","Frequency - Output 4":"100MHz","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/e50eddc51d3bcce3b4c055fb42e80c60.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy DSC400-4244Q0023KE1 and how do I get a price?","answer":"We source this active Microchip part through independent distribution. Submit an RFQ with your target quantity and required date code window; we confirm availability and current pricing at quote time. No stock-holding claim — quoted per order."},{"question":"Is DSC400-4244Q0023KE1 compatible with a 3.3V supply?","answer":"Yes. The supply range is 2.25 V to 3.6 V, so a 3.3 V rail is within spec. The outputs are HCSL or LVPECL — both are standard for 3.3 V clock distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4244Q0023KE1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4244Q0023KE1 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}}