{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-1111Q0043KI2","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-1111Q0043KI2","canonicalUrl":"https://icboms.com/microchip/DSC400-1111Q0043KI2","factsUrl":"https://icboms.com/api/mcp/products/DSC400-1111Q0043KI2","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, quad LVCMOS outputs at 25 MHz and 50 MHz, ±25 ppm stability, 2.25-3.6 V supply, -40 to +85 °C, 20-VFQFN exposed-pad package","salesMarkdown":"## Quad 25/50 MHz MEMS XO in a 5×3.2 mm QFN The DSC400-1111Q0043KI2 is a MEMS-based standard oscillator (XO) delivering four LVCMOS clock outputs — each output can be set to 25 MHz or 50 MHz, giving you a single-device clock source for a multi-rail FPGA or SoC reference tree. Supply voltage spans 2.25 V to 3.6 V, so it runs off a 2.5 V or 3.3 V rail without an extra LDO, and the ±25 ppm total frequency stability covers most 100BASE-TX and USB clocking budgets without stepping up to a TCXO. The 20-VFQFN with exposed pad (5.00 mm × 3.20 mm, 0.90 mm height) needs a thermal via array under the paddle for the MEMS die's heat path — layout the ground plane cutout per the datasheet land pattern to keep the pad solderable. ## Enable/Disable function for power sequencing","metaTitle":"DSC400-1111Q0043KI2 MEMS Oscillator – Quad LVCMOS, 25/50 MHz","metaDescription":"Microchip DSC400-1111Q0043KI2 quad-output XO: 25/50 MHz LVCMOS, ±25 ppm, 2.25-3.6V, -40 to 85°C, 20-VFQFN. Active production, sourced per RFQ.","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":"LVCMOS","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":"±25ppm","Frequency - Output 1":"25Mhz, 50MHz","Frequency - Output 2":"25MHz, 50MHz","Frequency - Output 3":"25MHz, 50MHz","Frequency - Output 4":"25MHz, 50MHz","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/DSC400-1111Q0043KI2/alternatives.json"},"ai":{"faq":[{"question":"What are the output frequencies of the DSC400-1111Q0043KI2?","answer":"All four outputs are configurable to either 25 MHz or 50 MHz, with LVCMOS levels. The exact output-to-frequency mapping is set by the factory-programmed order code — this variant ships with the 25/50 MHz combination listed in the datasheet."},{"question":"Is the DSC400-1111Q0043KI2 RoHS compliant?","answer":"The part is manufactured by Microchip Technology and is listed as RoHS-compliant per the standard product marking. The 20-VFQFN package is lead-free compatible."},{"question":"What package does the DSC400-1111Q0043KI2 come in?","answer":"It is supplied in a 20-lead VFQFN with an exposed thermal pad, measuring 5.00 mm × 3.20 mm with a 0.90 mm seated height. The tube packaging is standard for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-1111Q0043KI2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-1111Q0043KI2 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}}