{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC2044FI1-H0001T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC2044FI1-H0001T","canonicalUrl":"https://icboms.com/microchip/DSC2044FI1-H0001T","factsUrl":"https://icboms.com/api/mcp/products/DSC2044FI1-H0001T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC2044FI1-H0001T MEMS XO, HCSL output, dual-frequency bank (100/106.25/125/156.25 MHz and 25/50/100/125/156.25 MHz), 2.25V–3.6V supply, -40°C to 85°C, 14-VFQFN exposed pad.","salesMarkdown":"## Dual HCSL outputs for PCIe and Ethernet reference clocks The DSC2044FI1-H0001T delivers two independent HCSL outputs from a single MEMS resonator — Output 1 selects among 100, 106.25, 125, or 156.25 MHz; Output 2 selects among 25, 50, 100, 125, or 156.25 MHz. HCSL (High-Speed Current Steering Logic) is the standard clock format for PCIe Gen1/2/3, 1000BASE-T Ethernet, and SATA interfaces — the 100 MHz and 125 MHz rates on both outputs cover the most common reference frequencies used in networking and computing platforms. The MEMS resonator construction avoids the quartz supply chain constraints that periodically affect traditional crystal oscillators — the base resonator is MEMS, and the device is assembled in a standard 14-VFQFN exposed-pad package. ## Supply flexibility and industrial temperature range","metaTitle":"DSC2044FI1-H0001T MEMS XO – HCSL Dual Output, Active","metaDescription":"Microchip DSC2044FI1-H0001T: MEMS XO, HCSL output, dual frequencies (100/106.25/125/156.25 MHz & 25/50/100/125/156.25 MHz), 2.25V–3.6V, -40°C to 85°C, 14-VFQFN.","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":"±50ppm","Frequency - Output 1":"100MHz, 106.25MHz, 125MHz, 156.25MHz","Frequency - Output 2":"25MHz, 50MHz, 100MHz, 125MHz, 156.25MHz","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/961a0622be7bfe0860b322926ab30ab9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What output frequencies does the DSC2044FI1-H0001T support?","answer":"Output 1 can be configured to 100 MHz, 106.25 MHz, 125 MHz, or 156.25 MHz. Output 2 can be configured to 25 MHz, 50 MHz, 100 MHz, 125 MHz, or 156.25 MHz. Both outputs are HCSL logic levels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC2044FI1-H0001T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC2044FI1-H0001T 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}}