{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CI2-045.1584T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CI2-045.1584T","canonicalUrl":"https://icboms.com/microchip/DSC1121CI2-045.1584T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CI2-045.1584T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121CI2-045.1584T, XO (Standard) MEMS oscillator, 45.1584 MHz CMOS output, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 6-VDFN package.","salesMarkdown":"The DSC1121CI2-045.1584T is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a fixed 45.1584 MHz CMOS output. Supply voltage spans 2.25V to 3.6V, so it can run directly from a 2.5V or 3.3V rail without an extra LDO. Housed in a 6-VDFN package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm max.","metaTitle":"DSC1121CI2-045.1584T – 45.1584 MHz MEMS Oscillator, CMOS","metaDescription":"Microchip DSC1121CI2-045.1584T: 45.1584 MHz XO (Standard), CMOS output, ±25 ppm stability, -40°C to 85°C, 6-VDFN. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"CMOS","Series":"DSC1121","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Enable/Disable","Frequency":"45.1584 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-VDFN","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1121","Frequency Stability":"-","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"35mA","Absolute Pull Range (APR)":"±25ppm","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1121CI2-045.1584T/alternatives.json"},"ai":{"faq":[{"question":"What is the exact frequency of the DSC1121CI2-045.1584T?","answer":"The output frequency is 45.1584 MHz, fixed, with CMOS logic levels."},{"question":"Can the DSC1121CI2-045.1584T replace a quartz oscillator in my design?","answer":"Yes, it is a drop-in MEMS replacement for a standard 45.1584 MHz quartz oscillator in a 6-VDFN footprint. The MEMS construction provides better resistance to shock and vibration compared to quartz, and the ±25 ppm stability is comparable to many quartz XOs. Confirm the Enable/Disable logic polarity matches your circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CI2-045.1584T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CI2-045.1584T 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}}