{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC2044FI2-H0006","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC2044FI2-H0006","canonicalUrl":"https://icboms.com/microchip/DSC2044FI2-H0006","factsUrl":"https://icboms.com/api/mcp/products/DSC2044FI2-H0006","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC2044FI2-H0006, DSC2044 series, MEMS XO (Standard), dual 156.25 MHz HCSL outputs, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 14-VFQFN exposed pad, tube.","salesMarkdown":"## Dual 156.25 MHz HCSL clock in a MEMS package That frequency is a standard reference for PCIe Gen3/4 and 10GbE SerDes, so this part fits directly into a switch, router, or FPGA clock tree without an external PLL. No external load capacitors are needed — the oscillator is self-contained. The supply range spans 2.25V to 3.6V, so the same BOM line works on a 2.5V FPGA bank or a 3.3V ASIC rail. ## Package and board layout notes The 14-VFQFN package measures 3.20 mm x 2.50 mm with a 0.90 mm height. Hand-soldering is possible with a hot-air station and a fine-tip iron for the perimeter pads. No official second-source or pin-compatible replacement is recorded — the DSC2044 series is the only MEMS XO family from Microchip at this frequency and output type.","metaTitle":"DSC2044FI2-H0006 MEMS XO – Dual 156.25 MHz HCSL, Active","metaDescription":"Microchip DSC2044FI2-H0006 MEMS oscillator, dual 156.25 MHz HCSL outputs, ±25 ppm stability, -40°C to 85°C, 14-VFQFN. Active production – RFQ for pricing.","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":"156.25MHz","Frequency - Output 2":"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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9cfe45298003112c43c79a381c82c491.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC2044FI2-H0006/alternatives.json"},"ai":{"faq":[{"question":"How can I order the DSC2044FI2-H0006 or request a quote?","answer":"Submit an RFQ through this page. The part is Active in Microchip's portfolio, so we source it against your BOM quantity. Pricing and lead time are confirmed at quote time — no stock figures are published here."},{"question":"Does the DSC2044FI2-H0006 need external load capacitors?","answer":"No. Because it is a MEMS oscillator (not a quartz crystal), the timing element is sealed inside the package. The outputs are HCSL, which is a current-mode logic that terminates into 50 Ω to ground on the receiver side — no series termination or load caps are required on the output traces."},{"question":"What is the output frequency and type of the DSC2044FI2-H0006?","answer":"It provides two identical 156.25 MHz HCSL outputs. HCSL is the standard clock format for PCIe and 1000BASE-T Ethernet PHYs."},{"question":"Is the DSC2044FI2-H0006 compatible with 3.3V logic?","answer":"Yes. The supply voltage range is 2.25V to 3.6V, so a 3.3V rail is within spec. The HCSL output swing is typically 700–900 mV peak-to-peak, which is within the input threshold of most 3.3V clock receivers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC2044FI2-H0006","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC2044FI2-H0006 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}}