{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1124BI2-125.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1124BI2-125.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1124BI2-125.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1124BI2-125.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1124 series MEMS-based XO (Standard), 125 MHz, HCSL output, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 6-SMD no-lead package, 5.00mm × 3.20mm.","salesMarkdown":"## MEMS oscillator for high-speed reference clocks The DSC1124BI2-125.0000T is a MEMS-based XO (Standard) delivering a fixed 125 MHz output in HCSL logic levels — the signalling standard for PCIe Gen3, 10GbE, and many FPGA reference clock inputs. HCSL (High-Speed Current Steering Logic) swings 700–900 mV peak-to-peak into a 50-Ω terminated differential pair, which means the same oscillator can drive both the FPGA refclk and the PCIe root complex without a level translator. ## Supply range and enable/disable control Operates from 2.25V to 3.6V — a single 3.3V or 2.5V rail covers the whole range, so no secondary LDO is needed when the core logic runs at 2.5V and the transceiver bank at 3.3V. ## Temperature range and stability budget Rated -40°C to 85°C with ±25 ppm total frequency stability — the MEMS resonator's low g-sensitivity keeps the ppm in spec under vibration, unlike a quartz crystal that would drift 10–20 ppm under 5 g random vibration. This stability band is tight enough for a 125 MHz SerDes reference clock without external VCXO or PLL cleanup — the jitter contribution from the oscillator itself stays within the SerDes tolerance budget. 6-SMD no-lead package, 5.00mm × 3.20mm body, 0.90mm seated height — the 0.90mm profile fits under a mezzanine card or heatsink overhang without clearance issues. Surface-mount with no leads means the PCB footprint uses edge castellations; recommended pad layout is identical to standard 5.0×3.2 mm quartz oscillators, so this MEMS part drops into an existing quartz footprint without a board spin.","metaTitle":"DSC1124BI2-125.0000T MEMS XO 125 MHz HCSL – Microchip","metaDescription":"Active MEMS oscillator, 125 MHz, HCSL output, ±25 ppm, -40°C to 85°C. Surface-mount 5.0×3.2 mm. Quoted to order against BOM qty.","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":"±25ppm","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":"$324.4600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11b93dcf3fe2344432ea2f214a7ea724.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1124BI2-125.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1124BI2-125.0000T 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}}