{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1124BE1-125.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1124BE1-125.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1124BE1-125.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1124BE1-125.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1124BE1-125.0000T, XO (Standard) MEMS oscillator, 125 MHz HCSL output, ±50 ppm stability, 2.25V–3.6V supply, 6-SMD package, -20 to 70°C operating range.","salesMarkdown":"## 125 MHz HCSL reference for high-speed serial links The DSC1124BE1-125.0000T is a MEMS-based XO delivering a 125 MHz HCSL output — the standard reference frequency and logic level for PCIe Gen1/2/3, SATA, and Ethernet SerDes clocking. The HCSL output swings differentially with a typical 0.7V peak-to-peak amplitude into a 50-ohm terminated line, matching the input requirements of most PCIe clock buffers and PLLs without external level translation. Its ±50 ppm frequency stability across the -20°C to 70°C commercial range is adequate for general-purpose serial links; a design targeting PCIe Gen4 or 5 with tighter ±25 ppm jitter budgets would need a different stability grade. The wide 2.25V to 3.6V supply rail lets this oscillator run from either a 2.5V or 3.3V rail — useful when the same BOM serves both voltage domains. This is useful for power-sensitive designs where the reference clock can be gated during sleep modes — the 20 mA saving is modest but predictable.","metaTitle":"DSC1124BE1-125.0000T – Microchip 125 MHz HCSL MEMS XO","metaDescription":"Microchip DSC1124BE1-125.0000T: 125 MHz HCSL output MEMS XO, ±50 ppm stability, 2.25-3.6V supply, -20 to 70°C, 6-SMD. Active production. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"HCSL","Series":"DSC1124","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Enable/Disable","Frequency":"125 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1124","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"42mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11b93dcf3fe2344432ea2f214a7ea724.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output type of the DSC1124BE1-125.0000T?","answer":"The output type is HCSL (High-Speed Current Steering Logic), a differential standard commonly used for PCIe reference clocks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1124BE1-125.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1124BE1-125.0000T 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}}