{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC2044FL1-F0022T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC2044FL1-F0022T","canonicalUrl":"https://icboms.com/microchip/DSC2044FL1-F0022T","factsUrl":"https://icboms.com/api/mcp/products/DSC2044FL1-F0022T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC2044FL1-F0022T, MEMS-based XO (Standard), dual 100 MHz HCSL outputs, ±50 ppm stability, -40°C to 105°C, 14-VFQFN exposed pad, enable/disable function.","salesMarkdown":"## Dual 100 MHz HCSL clock source – MEMS reliability HCSL (High-Speed Current Steering Logic) is the typical reference clock for PCIe Gen1/2/3, Ethernet PHYs, and FPGA transceivers – the 60 mA max supply current covers both output lanes, making it a single-chip replacement for a pair of discrete oscillators. ## Temperature grade and supply flexibility The supply voltage spans 2.25 V to 3.6 V, so it runs from a 2.5 V or 3.3 V rail without an extra regulator. Housed in a 14-VFQFN with exposed pad (3.20 mm x 2.50 mm, 0.90 mm height), the package requires a thermal pad on the PCB for heat sinking – the exposed paddle must be soldered to a ground plane to keep junction temperature within limits. The 0.50 mm pitch QFN demands careful fan-out; a 4-layer board with microvias under the pad is typical for production. RoHS compliance is standard for this series (no explicit exemption noted).","metaTitle":"DSC2044FL1-F0022T MEMS XO – Dual 100 MHz HCSL, Active","metaDescription":"Microchip DSC2044FL1-F0022T: MEMS XO, dual 100 MHz HCSL outputs, ±50 ppm stability, -40°C to 105°C, enable/disable, 14-VFQFN. Active production – 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":"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","Frequency - Output 2":"100MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-40°C~105°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/ae673688095ff808b84e36700fa3adcc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does DSC2044FL1-F0022T support an enable/disable function?","answer":"Yes, the part includes an enable/disable function. When disabled, the supply current drops to 23 mA max, allowing the system to gate the clock outputs for power management."},{"question":"What is the difference between DSC2044 and DSC2043?","answer":"The DSC2044 provides two identical-frequency outputs (both 100 MHz in this variant), while the DSC2043 typically offers two different frequencies. The DSC2044 is suited for applications needing a redundant or fanned-out clock at the same frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC2044FL1-F0022T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC2044FL1-F0022T 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}}