{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0244Q0009KE2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0244Q0009KE2T","canonicalUrl":"https://icboms.com/microchip/DSC400-0244Q0009KE2T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0244Q0009KE2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 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 package, tape & reel.","salesMarkdown":"## Dual 100 MHz differential outputs for clock-tree fan-out That means a single oscillator can clock a PCIe reference and a SerDes PLL from the same package, saving a second oscillator slot on the BOM. Unlike a quartz crystal, MEMS has no activity dips or startup reliability issues across temperature—the frequency stays within that window from first power-up. For a 100 MHz clock, ±25 ppm is 2.5 kHz of absolute error, well within the capture range of most PLLs. ## Wide supply range and enable/disconnect for power sequencing The supply input accepts 2.25 V to 3.6 V, so the same part works on a 2.5 V FPGA bank or a 3.3 V ASIC rail without an extra LDO. ## 20-VFQFN package: layout and thermal pad considerations Housed in a 20-lead VFQFN with an exposed pad, the DSC400 measures 5.00 mm × 3.20 mm with a 0.90 mm height. The 0.50 mm pitch QFN demands careful fan-out; a two-layer board can route it if the inner pads connect to vias under the package. ## Active lifecycle and sourcing through independent distribution Sourced through independent distribution, quantities are confirmed per RFQ; no minimum order threshold is imposed.","metaTitle":"DSC400-0244Q0009KE2T MEMS XO – Dual 100 MHz HCSL/LVPECL –","metaDescription":"Microchip DSC400-0244Q0009KE2T: MEMS XO, dual 100 MHz outputs, HCSL/LVPECL, ±25 ppm, 2.25–3.6 V, 20-VFQFN. Active production. Request quote.","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":"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":"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 DSC400-0244Q0009KE2T replace a standard quartz oscillator with the same frequency?","answer":"Yes, if the board is designed for HCSL or LVPECL differential inputs and the supply voltage is within 2.25–3.6 V. The MEMS part is a drop-in replacement for a quartz XO in the same 20-VFQFN footprint, provided the output logic type matches. The ±25 ppm stability is comparable to a standard quartz oscillator; no timing-budget rework is needed. Confirm the Enable/Disable polarity matches the existing circuit — some quartz oscillators use a different active-high/low convention."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0244Q0009KE2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0244Q0009KE2T 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}}