{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0244Q0009KE2","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0244Q0009KE2","canonicalUrl":"https://icboms.com/microchip/DSC400-0244Q0009KE2","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0244Q0009KE2","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO (Standard), dual 100 MHz outputs, HCSL / LVPECL, ±25 ppm stability, 2.25 V – 3.6 V supply, 20-VFQFN exposed pad, tube packaging.","salesMarkdown":"## Dual 100 MHz clock from a MEMS resonator The DSC400-0244Q0009KE2 delivers two 100 MHz outputs from a MEMS resonator — one HCSL, one LVPECL — in a single 20-VFQFN package. That means one oscillator can feed both a PCIe reference clock (HCSL) and a SerDes PLL (LVPECL) without a second can or a level translator. ±25 ppm frequency stability over -20 to +70 °C is typical for 1 GbE, PCIe Gen 1/2, and SATA reference clocks — the timing budget for those interfaces lands around ±50 ppm total, so this oscillator leaves margin for the PLL jitter and board skew. The 2.25 V to 3.6 V supply range covers both 2.5 V and 3.3 V rails without an intermediate regulator — one less inductor and cap on the BOM. ## Package and layout: 20-VFQFN exposed pad The 5.00 mm × 3.20 mm, 20-lead VFQFN with exposed pad requires a thermal via pattern under the package — the pad is the primary heat path. The 0.90 mm height fits 1U line cards and blade servers where board-to-board clearance is tight.","metaTitle":"DSC400-0244Q0009KE2 MEMS XO – Dual 100 MHz HCSL/LVPECL –","metaDescription":"Active MEMS XO from Microchip DSC400 series. Dual 100 MHz outputs, HCSL/LVPECL, ±25 ppm stability, 2.25-3.6 V supply. 20-VFQFN package. Quoted to order.","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":"±25ppm","Frequency - Output 1":"100MHz","Frequency - Output 2":"100MHz","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/77ffd765db63125e580fcfaaeda2a320.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can the DSC400-0244Q0009KE2 replace a standard 100 MHz quartz oscillator?","answer":"Functionally yes — it provides the same 100 MHz output frequency with ±25 ppm stability. However, the output logic is HCSL and LVPECL, not LVCMOS. Check that the downstream clock input accepts HCSL or LVPECL levels, or add a level translator. The 20-VFQFN package also differs from a standard 7×5 mm quartz can — the PCB footprint must match."},{"question":"What packaging options are available for the DSC400-0244Q0009KE2?","answer":"The listed packaging is Tube. Tape-and-reel options may exist under a different order code suffix — confirm the reel quantity with the distributor at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0244Q0009KE2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0244Q0009KE2 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}}