{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CE2-066.6600","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CE2-066.6600","canonicalUrl":"https://icboms.com/microchip/DSC1121CE2-066.6600","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CE2-066.6600","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121CE2-066.6600, XO (Standard) MEMS oscillator, 66.66 MHz CMOS output, 2.25V–3.6V supply, ±25 ppm stability, AEC-Q100 qualified, 6-SMD no-lead package.","salesMarkdown":"## 66.66 MHz MEMS oscillator with AEC-Q100 qualification The DSC1121CE2-066.6600 is a 66.66 MHz MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a CMOS output with ±25 ppm frequency stability across its operating range. Its AEC-Q100 rating qualifies it for automotive-grade applications, meaning it has passed the reliability stress tests and temperature cycling required for under-hood or cabin electronics. The Enable/Disable function lets the system power-gate the oscillator output, dropping supply current from 35 mA to 22 mA when the clock is not needed. ## Supply voltage range and rail compatibility The wide input range also provides margin during supply transients common in automotive 3.3 V domains, where the rail may dip below 3.0 V during cranking. ## MEMS resonator advantages over quartz The MEMS base resonator gives this oscillator higher shock and vibration tolerance compared to a quartz crystal — a practical benefit for engine-bay or chassis-mounted ECUs where mechanical stress is a concern. Sourced through independent distribution; quoted to order against the BOM quantity.","metaTitle":"DSC1121CE2-066.6600 MEMS Oscillator","metaDescription":"DSC1121CE2-066.6600 XO (Standard) from Microchip. MEMS-based, 66.66 MHz CMOS output, 2.25V-3.6V supply, ±25 ppm stability, AEC-Q100 qualified. Active lifecycle.","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":"Tube","Ratings":"AEC-Q100","Function":"Enable/Disable","Frequency":"66.66 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead","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":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"35mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the DSC1121CE2-066.6600 AEC-Q100 qualified?","answer":"Yes, the DSC1121CE2-066.6600 carries an AEC-Q100 rating, meaning it has passed the automotive-grade qualification tests for reliability and temperature cycling."},{"question":"What supply voltage range does the DSC1121CE2-066.6600 accept?","answer":"It operates from 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V logic rails without an external regulator."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CE2-066.6600","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CE2-066.6600 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}}