{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CM1-066.6660","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CM1-066.6660","canonicalUrl":"https://icboms.com/microchip/DSC1121CM1-066.6660","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CM1-066.6660","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121 series MEMS XO, 66.666 MHz, CMOS output, ±50 ppm stability, 2.25 V to 3.6 V supply, -55°C to 125°C, 6-SMD no-lead package.","salesMarkdown":"## 66.666 MHz MEMS XO with full military temperature range The DSC1121CM1-066.6660 is a standard MEMS-based oscillator (XO) from Microchip's DSC1121 series, delivering a 66.666 MHz CMOS output with ±50 ppm frequency stability across the full -55°C to 125°C military temperature range. ## Supply voltage flexibility and output control The 6-SMD no-lead package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a standard 3.2 x 2.5 mm MEMS oscillator footprint that matches many quartz oscillator pads, easing a drop-in replacement on existing layouts.","metaTitle":"DSC1121CM1-066.6660 MEMS Oscillator","metaDescription":"Active-production MEMS XO, 66.666 MHz CMOS output, ±50 ppm stability, 2.25 V to 3.6 V supply. Full military temp range. 6-SMD package.","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":"-","Function":"Enable/Disable","Frequency":"66.666 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":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-55°C~125°C","Current - Supply (Max)":"22mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"-"}},"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/DSC1121CM1-066.6660/alternatives.json"},"ai":{"faq":[{"question":"What is the frequency stability of the DSC1121CM1-066.6660?","answer":"±50 ppm across the full -55°C to 125°C range — that includes the temperature drift, initial accuracy, and aging. For a 66.666 MHz carrier, ±50 ppm equals about ±3.3 kHz of total frequency error worst-case."},{"question":"Is the DSC1121CM1-066.6660 RoHS compliant?","answer":"The DSC1121 series is listed as RoHS compliant by Microchip. The 6-SMD package is lead-free and compatible with standard reflow profiles."},{"question":"Can I use the DSC1121CM1-066.6660 in a 3.3 V circuit?","answer":"Yes. The CMOS output swings rail-to-rail, so it drives 3.3 V logic inputs directly."},{"question":"Does the DSC1121CM1-066.6660 have a pin-compatible equivalent from other brands?","answer":"Several MEMS oscillator vendors (SiTime, Abracon, Epson) offer 3.2 x 2.5 mm 6-pin XOs with the same enable/disable pinout and CMOS output. Confirm the supply voltage range and frequency stability against your requirement — the Microchip DSC1121 series is one option in a cross-compatible footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CM1-066.6660","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CM1-066.6660 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}}