{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-1111Q0043KI2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-1111Q0043KI2T","canonicalUrl":"https://icboms.com/microchip/DSC400-1111Q0043KI2T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-1111Q0043KI2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard), MEMS resonator, 4 LVCMOS outputs at 25 MHz and 50 MHz, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 20-VFQFN exposed pad.","salesMarkdown":"## Four-output MEMS oscillator for board-level clock trees Frequency stability is held to ±25 ppm across the full -40°C to 85°C industrial temperature range, which keeps clock jitter within the margin required for 100BASE-TX and USB 2.0 interfaces without an external PLL cleanup. ## Supply range and enable logic for system integration The wide supply range of 2.25V to 3.6V lets the oscillator run from a 2.5V or 3.3V rail without a dedicated regulator, simplifying power tree design. ## 20-VFQFN exposed-pad layout considerations The 5.00 mm × 3.20 mm, 0.90 mm height 20-VFQFN package with exposed pad requires a thermal via array under the pad for adequate heat transfer to the ground plane — the datasheet shows the recommended footprint and stencil aperture.","metaTitle":"DSC400-1111Q0043KI2T MEMS XO – 4 Outputs, ±25 ppm","metaDescription":"Microchip DSC400-1111Q0043KI2T: Active MEMS XO, 4 x 25/50 MHz LVCMOS outputs, ±25 ppm stability, 2.25V-3.6V supply, -40°C to 85°C. 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":"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":"±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/DSC400-1111Q0043KI2T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for the DSC400-1111Q0043KI2T?","answer":"No official replacement or successor is listed by Microchip; the DSC400-1111Q0043KI2T remains Active and is the current production order code for a quad-output MEMS XO with ±25 ppm stability and LVCMOS outputs."},{"question":"Is the DSC400-1111Q0043KI2T a MEMS oscillator?","answer":"Yes — the base resonator is MEMS, not a quartz crystal, which provides better shock and vibration immunity and faster startup compared to quartz-based XOs."},{"question":"What are the output frequencies and supply voltage for the DSC400-1111Q0043KI2T?","answer":"Four LVCMOS outputs are configured as 25 MHz and 50 MHz (two outputs each). The supply voltage range is 2.25V to 3.6V, covering 2.5V and 3.3V rails without a separate LDO."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-1111Q0043KI2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-1111Q0043KI2T 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}}