{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC2044FI2-H0004T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC2044FI2-H0004T","canonicalUrl":"https://icboms.com/microchip/DSC2044FI2-H0004T","factsUrl":"https://icboms.com/api/mcp/products/DSC2044FI2-H0004T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC2044FI2-H0004T, MEMS-based XO (Standard), quad HCSL outputs 75/100/125/150 MHz, ±25 ppm stability, 2.25–3.6 V supply, -40°C to 85°C, 14-VFQFN exposed-pad package, tape-and-reel.","salesMarkdown":"## Quad-output MEMS clock for dense timing trees The DSC2044FI2-H0004T is a MEMS-based XO (Standard) from Microchip that delivers four simultaneous HCSL outputs at 75 MHz, 100 MHz, 125 MHz, and 150 MHz, all from a single 14-VFQFN package. HCSL (High-Speed Current Steering Logic) is the common clock interface for PCIe reference clocks — this part feeds a multi-lane PCIe switch or FPGA bank without external level translation. The 2.25 V to 3.6 V supply range covers 2.5 V and 3.3 V rails common in networking and FPGA designs — no extra regulator needed when migrating between voltage domains. The 14-VFQFN exposed-pad package measures 3.20 mm x 2.50 mm with a 0.90 mm height — the exposed paddle needs a thermal via array under the pad to pull heat into the ground plane; a 4-layer board with a solid GND plane under the part is the typical layout. This part is still a valid design-in for new builds, not a scavenge item.","metaTitle":"DSC2044FI2-H0004T MEMS XO – Quad HCSL Output, 2.25-3.6V","metaDescription":"Microchip DSC2044FI2-H0004T quad-output MEMS XO: 75/100/125/150 MHz HCSL, ±25 ppm stability, 14-VFQFN, active.","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":"Tape & Reel (TR)","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":"75MHz, 100MHz, 125MHz, 150MHz","Frequency - Output 2":"75MHz, 100MHz, 125MHz, 150MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"60mA (Typ)","Current - Supply (Disable) (Max)":"23 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/25a3810ba24ec6becdb9d199c2f9f639.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy DSC2044FI2-H0004T and check stock?","answer":"The DSC2044FI2-H0004T is an active Microchip part sourced through independent distribution. Submit an RFQ with your target quantity and required delivery window — we confirm availability and current pricing at quote time. No stock-holding claim is made here; each order is quoted to your BOM line."},{"question":"What are the exact output frequencies of DSC2044FI2-H0004T?","answer":"The four HCSL outputs are fixed at 75 MHz, 100 MHz, 125 MHz, and 150 MHz — all four are present simultaneously. There is no programmable frequency option; the part is factory-configured for this quad set."},{"question":"What supply voltage does DSC2044FI2-H0004T need?","answer":"The supply range is 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V rails. The part operates across the full range without external regulation, though the output swing and jitter performance are optimized at the nominal 3.3 V level."},{"question":"Is DSC2044FI2-H0004T a direct replacement for DSC2044FI2-H0004?","answer":"The base product number DSC2044 covers the same MEMS XO family, but the suffix (FI2-H0004T vs. the truncated code) specifies the exact frequency set, stability grade, and packaging. Confirm the output frequencies and temperature range match your BOM before substituting — the FI2-H0004T suffix is the full ordering code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC2044FI2-H0004T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC2044FI2-H0004T 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}}