{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CM1-020.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CM1-020.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1121CM1-020.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CM1-020.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121CM1-020.0000T XO (Standard), 20 MHz CMOS output, MEMS resonator, AEC-Q100 qualified, -55°C to +125°C, 2.25V-3.6V supply, 6-SMD package.","salesMarkdown":"This means the part is qualified for under-hood or chassis-mounted ECUs where quartz oscillators may fail under sustained vibration or thermal cycling. The 2.25V to 3.6V supply range covers both 2.5V and 3.3V rails, so the same BOM line can serve multiple voltage domains. ## Frequency stability and supply current limits Frequency stability is ±50 ppm, which includes temperature, supply variation, and aging. For a 20 MHz clock, ±50 ppm translates to ±1,000 Hz of absolute jitter budget — enough for most MCU and CAN bus timing requirements, but tight for high-speed serial interfaces like USB or Ethernet that demand ±25 ppm or better. The disable current is still significant — if the oscillator is gated for low-power sleep modes, the 22 mA draw may dominate the sleep budget. A separate load switch ahead of the supply pin may be needed for sub-mA standby targets. Housed in a 6-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm. X-ray inspection after reflow is recommended to verify voiding under the package. Surface-mount mounting is assumed; no through-hole variant exists in this series. The low profile (0.90 mm) suits compact designs where board-to-board clearance is tight.","metaTitle":"DSC1121CM1-020.0000T MEMS Oscillator 20MHz AEC-Q100 -","metaDescription":"DSC1121CM1-020.0000T XO (Standard) 20MHz CMOS MEMS oscillator, -55°C to +125°C, AEC-Q100 qualified, 2.25V-3.6V supply. 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)","Output":"CMOS","Series":"DSC1121","Package":"Tape & Reel (TR)","Ratings":"AEC-Q100","Function":"Enable/Disable","Frequency":"20 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)":"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 DSC1121CM1-020.0000T compatible with a 3.3V supply?","answer":"Yes, 3.3V falls within the 2.25V to 3.6V supply range. The CMOS output swings rail-to-rail, so it will drive a 3.3V logic input directly."},{"question":"How does DSC1121CM1-020.0000T compare to quartz oscillators?","answer":"The key difference is the MEMS resonator — it offers better shock and vibration tolerance than quartz, which matters in automotive and industrial environments. The AEC-Q100 qualification (not typically found on quartz oscillators) confirms reliability under harsh thermal and mechanical stress. Frequency stability (±50 ppm) is comparable to standard quartz XOs; for tighter stability (<±25 ppm), quartz TCXOs or OCXOs remain the choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CM1-020.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CM1-020.0000T 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}}