{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4144Q0054KI1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4144Q0054KI1T","canonicalUrl":"https://icboms.com/microchip/DSC400-4144Q0054KI1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4144Q0054KI1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, quad-output, frequencies 156.25 MHz, 100 MHz, 50 MHz, 156.25 MHz, HCSL/LVCMOS, ±50 ppm stability, -40 to 85°C, 20-VFQFN exposed pad, tape & reel.","salesMarkdown":"## Quad-output MEMS clock in a single 5.0×3.2 mm package The DSC400-4144Q0054KI1T is a MEMS-based XO that delivers four independent output frequencies from one 20-VFQFN package: 156.25 MHz on outputs 1 and 4, 100 MHz on output 2, and 50 MHz on output 3. Each output can be configured as HCSL or LVCMOS, making this a single-device clock source for PCIe reference clocks (100 MHz HCSL), Ethernet MAC/PHY (156.25 MHz LVCMOS), and lower-speed logic (50 MHz LVCMOS). ## Frequency stability and supply tolerance for timing margin The supply voltage range of 2.25 V to 3.6 V covers common 2.5 V and 3.3 V rails, with the MEMS resonator maintaining stability even as the rail droops under load.","metaTitle":"DSC400-4144Q0054KI1T MEMS XO – Quad Output","metaDescription":"Active-production quad-output MEMS oscillator from Microchip. Four independent frequencies (156.25, 100, 50 MHz) in a 5.0×3.2 mm QFN.","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, LVCMOS","Series":"DSC400","Package":"Tape & Reel (TR)","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":"156.25MHz","Frequency - Output 2":"100MHz","Frequency - Output 3":"50MHz","Frequency - Output 4":"156.25MHz","Operating Temperature":"-40°C~85°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/DSC400-4144Q0054KI1T/alternatives.json"},"ai":{"faq":[{"question":"What is the frequency stability of DSC400-4144Q0054KI1T?","answer":"The DSC400-4144Q0054KI1T guarantees ±50 ppm total frequency stability over the -40°C to 85°C range, covering initial tolerance, temperature, and aging."},{"question":"Does DSC400-4144Q0054KI1T support LVCMOS or HCSL output?","answer":"Yes, each of the four outputs can be independently configured as HCSL or LVCMOS, allowing a single oscillator to serve PCIe (HCSL) and logic-level (LVCMOS) loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4144Q0054KI1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4144Q0054KI1T 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}}