{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1124CI1-156.2500T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1124CI1-156.2500T","canonicalUrl":"https://icboms.com/microchip/DSC1124CI1-156.2500T","factsUrl":"https://icboms.com/api/mcp/products/DSC1124CI1-156.2500T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1124 series XO (Standard) MEMS oscillator, 156.25 MHz HCSL output, 2.25V-3.6V supply, ±50ppm stability, -40°C to 85°C, 6-SMD no-lead package.","salesMarkdown":"## 156.25 MHz HCSL MEMS oscillator for PCIe and Ethernet reference clocks The DSC1124CI1-156.2500T is a MEMS-based XO (Standard) oscillator delivering a 156.25 MHz HCSL output — the exact frequency and logic family used as the reference clock for PCIe Gen1/2/3 and 10GbE SerDes blocks. Its supply voltage spans 2.25V to 3.6V, so it runs directly from a 2.5V or 3.3V rail without an intermediate LDO, saving a regulator and its associated board area. ## MEMS vs quartz — what the resonator choice means for the BOM MEMS oscillators typically start up in under 5 ms versus 10-20 ms for a quartz crystal, and they survive 50,000 g shock — relevant if the board ships in a vibration-prone enclosure or sees drop testing.","metaTitle":"DSC1124CI1-156.2500T MEMS Oscillator 156.25 MHz HCSL -","metaDescription":"DSC1124CI1-156.2500T XO (Standard) MEMS oscillator, 156.25 MHz HCSL output, 2.25-3.6V supply, -40°C to 85°C, ±50ppm stability. 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":"Bulk","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","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"42mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11b93dcf3fe2344432ea2f214a7ea724.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1124CI1-156.2500T/alternatives.json"},"ai":{"faq":[{"question":"Is DSC1124CI1-156.2500T compatible with 2.5V and 3.3V supplies?","answer":"Yes. The supply voltage range is 2.25V to 3.6V, so it works on both 2.5V and 3.3V rails without a separate regulator. The HCSL output levels track the supply, so the swing scales accordingly."},{"question":"Can DSC1124CI1-156.2500T replace a standard quartz oscillator?","answer":"Functionally yes — it is a drop-in XO replacement in a 6-SMD no-lead package. The MEMS resonator offers better shock tolerance and faster startup than quartz, but the pinout and footprint are standard. Confirm the Enable/Disable logic polarity matches your design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1124CI1-156.2500T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1124CI1-156.2500T 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}}