{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1124NI1-156.2500T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1124NI1-156.2500T","canonicalUrl":"https://icboms.com/microchip/DSC1124NI1-156.2500T","factsUrl":"https://icboms.com/api/mcp/products/DSC1124NI1-156.2500T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1124 series MEMS XO (Standard), 156.2500 MHz, HCSL output, ±50 ppm stability, 2.25V-3.6V supply, -40°C to 85°C, 6-SMD no-lead package.","salesMarkdown":"## 156.25 MHz HCSL for PCIe reference clocks The DSC1124NI1-156.2500T is a MEMS-based oscillator delivering a 156.25 MHz HCSL output — the standard reference clock frequency for PCI Express Gen 1, 2, and 3 root complexes and switches. HCSL (High-Speed Current Steering Logic) provides the differential swing and common-mode levels required by PCIe without external termination resistors, saving two passives per clock pair. ## Wide supply and industrial temperature range ## MEMS resonator — sourcing and reliability angle MEMS oscillators are less sensitive to mechanical shock and vibration, and their production cycle is typically shorter than quartz crystal oscillators — a practical advantage when filling a BOM line under schedule pressure. Lifecycle status is Active: the part is in production with no end-of-life notice. ## 6-SMD no-lead package — layout note The 7.00 mm x 5.00 mm 6-SMD no-lead package has a 0.90 mm seated height. The no-lead footprint uses edge-castellations for solder fillet inspection; ensure the PCB land pattern matches the recommended layout in the DSC1124 datasheet to avoid skew between the differential output pair.","metaTitle":"DSC1124NI1-156.2500T Microchip MEMS XO 156.25 MHz HCSL","metaDescription":"DSC1124NI1-156.2500T: Microchip MEMS XO, 156.25 MHz, HCSL output, ±50 ppm, -40°C to 85°C, 2.25V-3.6V. Active lifecycle.","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":"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":"0.276\\\" L x 0.197\\\" W (7.00mm x 5.00mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1124","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":"$1.7700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11b93dcf3fe2344432ea2f214a7ea724.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DSC1124NI1-156.2500T a direct replacement for a failed quartz oscillator on my board?","answer":"It depends on the original oscillator's output type. The DSC1124NI1-156.2500T outputs HCSL, which is a differential current-steering logic level used primarily for PCIe reference clocks. If the failed oscillator was a single-ended LVCMOS or LVPECL type, the DSC1124NI1-156.2500T is not a pin-compatible drop-in — the termination and input structure of the receiving device must match HCSL. Check the original part's output standard before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1124NI1-156.2500T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1124NI1-156.2500T 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}}