{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1124BE1-156.2500","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1124BE1-156.2500","canonicalUrl":"https://icboms.com/microchip/DSC1124BE1-156.2500","factsUrl":"https://icboms.com/api/mcp/products/DSC1124BE1-156.2500","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1124 series MEMS XO (Standard), 156.2500 MHz, HCSL output, ±50 ppm stability, 2.25V~3.6V supply, -20°C~70°C, 6-SMD no-lead package","salesMarkdown":"## 156.25 MHz HCSL reference clock — MEMS, not quartz The DSC1124BE1-156.2500 is a MEMS-based XO (Standard) delivering a 156.25 MHz HCSL output — the exact frequency used as the reference clock for 10GbE, PCIe Gen 3, and SATA interfaces. Output is HCSL (High-Speed Current Steering Logic), the differential standard preferred for PCIe and Ethernet PHY reference clocks. The supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails without a separate regulator. ## Frequency stability and temperature range That is tight enough for most 10GbE and PCIe applications — the PHY's jitter tolerance will be the deciding factor, not the oscillator's ppm budget. The operating range suits indoor networking, telecom central-office, and office equipment; not rated for -40°C industrial or automotive environments. The 6-SMD no-lead package (5.00 mm × 3.20 mm footprint, 0.90 mm seated height) is a standard MEMS oscillator land pattern, shared across the DSC1124 series. Supply current is 42 mA max when active, dropping to 22 mA max when disabled, so the oscillator itself draws meaningful current even in disable; a load switch on the supply rail would cut it further if every milliwatt matters.","metaTitle":"DSC1124BE1-156.2500 Microchip MEMS XO 156.25 MHz HCSL ±50","metaDescription":"Microchip DSC1124BE1-156.2500 MEMS oscillator, 156.25 MHz HCSL output, ±50 ppm stability, 2.25-3.6 V, -20°C to 70°C, 6-SMD. 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)","Output":"HCSL","Series":"DSC1124","Package":"Tube","Ratings":"-","Function":"Enable/Disable","Frequency":"156.25 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 exact frequency of DSC1124BE1-156.2500?","answer":"156.2500 MHz — the standard reference clock frequency for 10GbE, PCIe Gen 3, and SATA interfaces."},{"question":"What is the output type and supply voltage range?","answer":"Supply voltage range is 2.25 V to 3.6 V, compatible with 2.5 V and 3.3 V rails."},{"question":"What package does DSC1124BE1-156.2500 come in?","answer":"6-SMD, No Lead — 5.00 mm × 3.20 mm footprint, 0.90 mm seated height. Standard MEMS oscillator land pattern."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1124BE1-156.2500","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1124BE1-156.2500 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}}