{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1124CE1-156.2500","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1124CE1-156.2500","canonicalUrl":"https://icboms.com/microchip/DSC1124CE1-156.2500","factsUrl":"https://icboms.com/api/mcp/products/DSC1124CE1-156.2500","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1124 series XO (Standard), 156.25 MHz HCSL output, ±50 ppm stability, 2.25V–3.6V supply, -20°C to 70°C, 6-SMD package, tube packaging, MEMS resonator.","salesMarkdown":"## 156.25 MHz HCSL clock — MEMS vs quartz trade-offs The DSC1124CE1-156.2500: This is a 156.25 MHz XO (Standard) with HCSL output — a common reference frequency for PCIe Gen1/2/3 and 10GbE MAC-to-PHY interfaces. The MEMS base resonator gives it faster startup (typically under 5 ms) and higher shock resistance than a quartz crystal, which matters if the board sees vibration or portable handling. ## Supply voltage flexibility and current budget Max supply current is 42 mA when enabled, 22 mA when disabled — the disable function lets you gate the clock for power savings in multi-rail systems. Suitable for both new designs and ongoing production. No official successor or second-source listed. 6-SMD, no-lead package, 3.20 mm x 2.50 mm footprint, seated height 0.90 mm max. Temperature range is -20°C to 70°C — commercial grade, so it fits indoor networking gear, test equipment, and office appliances, but not under-hood automotive or outdoor base stations without an enclosure.","metaTitle":"DSC1124CE1-156.2500 — 156.25 MHz HCSL MEMS Oscillator","metaDescription":"Microchip DSC1124CE1-156.2500 XO (Standard) with HCSL output, 156.25 MHz, ±50 ppm stability, 2.25V–3.6V supply. Active lifecycle, surface-mount 6-SMD.","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":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","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":"$2.3400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11b93dcf3fe2344432ea2f214a7ea724.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the DSC1124CE1-156.2500 or request a quote?","answer":"This part is Active and available to order. We source through independent distribution — submit an RFQ with your target quantity and we'll confirm availability and current pricing. No stock-holding claim; quoted per RFQ."},{"question":"What is the output type of the DSC1124CE1-156.2500?","answer":"HCSL (High-Speed Current Steering Logic) — a differential output standard used in PCIe and Ethernet clock distribution. It requires an external 50-ohm termination to ground at the receiver."},{"question":"Can I replace a quartz oscillator with the DSC1124CE1-156.2500?","answer":"Yes, if the board expects an HCSL input and the supply voltage falls within 2.25 V to 3.6 V. The MEMS oscillator has a different startup profile and jitter spec than quartz — verify the downstream PLL's jitter tolerance before swapping. The 6-SMD footprint matches many common quartz XO packages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1124CE1-156.2500","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1124CE1-156.2500 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}}