{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0404Q0058KE1","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0404Q0058KE1","canonicalUrl":"https://icboms.com/microchip/DSC400-0404Q0058KE1","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0404Q0058KE1","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard), MEMS-based, dual 100 MHz HCSL outputs, ±50 ppm stability, 2.25V–3.6V supply, -20°C to 70°C, 20-VFQFN exposed pad, tube packaging, enable/disable function.","salesMarkdown":"## MEMS oscillator for PCIe clocking It delivers two 100 MHz HCSL outputs from a single device, which directly feeds the reference clock inputs of a PCIe switch or FPGA transceiver bank. HCSL (High-Speed Current Steering Logic) is the standard output type for PCIe Gen1 through Gen4 reference clocks — no external level translation needed if the destination is a PCIe PHY or Intel PCH. ## Supply and temperature fit Operating supply spans 2.25V to 3.6V, covering both 2.5V and 3.3V rails without a dedicated LDO. Frequency stability is ±50 ppm, which keeps the PCIe reference within the ±300 ppm total tolerance budget for Gen3 even after aging and temperature drift. Housed in a 20-VFQFN with exposed pad (5.00mm x 3.20mm body, 0.90mm height).","metaTitle":"DSC400-0404Q0058KE1 MEMS XO – 100 MHz HCSL, Active","metaDescription":"DSC400-0404Q0058KE1: MEMS-based XO, 100 MHz HCSL output, ±50 ppm stability, 2.25V–3.6V supply. Active lifecycle, 20-VFQFN package. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Height":"0.035\\\" (0.90mm)","Output":"HCSL","Series":"DSC400","Package":"Tube","Function":"Enable/Disable","Base Resonator":"MEMS","Package / Case":"20-VFQFN Exposed Pad","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":"DSC400","Frequency Stability":"±50ppm","Frequency - Output 1":"100MHz","Frequency - Output 2":"-","Frequency - Output 3":"100MHz","Frequency - Output 4":"-","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b1fa89bbb593bb9f15bbf883a84023ea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC400-0404Q0058KE1/alternatives.json"},"ai":{"faq":[{"question":"Can DSC400-0404Q0058KE1 replace a standard 100 MHz HCSL quartz oscillator?","answer":"Yes — the MEMS-based DSC400 is pin-compatible with many 20-VFQFN quartz oscillators and offers the same HCSL output. The ±50 ppm stability matches typical quartz specs. The key difference is supply range: 2.25V–3.6V covers more rails than a fixed 3.3V quartz oscillator. No board spin required if the footprint matches the 5.00mm x 3.20mm VFQFN."},{"question":"What is the output type of DSC400-0404Q0058KE1?","answer":"HCSL (High-Speed Current Steering Logic), the standard for PCIe reference clocks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0404Q0058KE1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0404Q0058KE1 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}}