{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC2044FE2-F0018","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC2044FE2-F0018","canonicalUrl":"https://icboms.com/microchip/DSC2044FE2-F0018","factsUrl":"https://icboms.com/api/mcp/products/DSC2044FE2-F0018","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC2044FE2-F0018, MEMS-based XO (Standard), dual output 100 MHz and 125 MHz HCSL, ±25 ppm stability, 2.25 V–3.6 V supply, 14-VFQFN exposed-pad package, active lifecycle.","salesMarkdown":"## Dual-frequency HCSL clock in a MEMS resonator The DSC2044FE2-F0018 delivers two independent HCSL outputs at 100 MHz and 125 MHz from a single MEMS resonator — no separate crystal or PLL needed for the second frequency. HCSL (High-Speed Current Steering Logic) is the standard clock format for PCIe reference clocks; the differential pair swings 700–900 mV peak-to-peak and terminates into 50 Ω to ground at the receiver. The MEMS base resonator gives better shock resistance than quartz (tested to 50,000 g) and a wider operating temperature range without frequency jumps, which reduces field failure risk in vibration-prone equipment. ## 14-VFQFN with exposed pad — layout note Supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V logic rails without an external regulator.","metaTitle":"DSC2044FE2-F0018 MEMS XO — 100/125 MHz HCSL, Active","metaDescription":"Microchip DSC2044FE2-F0018 dual-output 100/125 MHz HCSL MEMS oscillator. Active lifecycle, 14-VFQFN, ±25 ppm stability. 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","Series":"DSC2044","Package":"Tube","Function":"Enable/Disable","Base Resonator":"MEMS","Package / Case":"14-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC2044","Frequency Stability":"±25ppm","Frequency - Output 1":"100MHz, 125MHz","Frequency - Output 2":"100MHz, 125MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"60mA (Typ)","Current - Supply (Disable) (Max)":"23 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b375449e07c2b4be97254ea425d8fd47.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC2044FE2-F0018/alternatives.json"},"ai":{"faq":[{"question":"What is the output frequency of DSC2044FE2-F0018?","answer":"The DSC2044FE2-F0018 provides two HCSL outputs: one at 100 MHz and one at 125 MHz, both available simultaneously from the same MEMS resonator."},{"question":"Is DSC2044FE2-F0018 pin-compatible with other DSC2044 variants?","answer":"Yes — all DSC2044 family members share the same 14-VFQFN pinout and footprint. The base product number DSC2044 covers the full series, so swapping to a different frequency variant requires no board layout change."},{"question":"What is the frequency stability of DSC2044FE2-F0018?","answer":"Frequency stability is ±25 ppm over the operating temperature range of -20°C to +70°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC2044FE2-F0018","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC2044FE2-F0018 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}}