{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CM1-026.5625","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CM1-026.5625","canonicalUrl":"https://icboms.com/microchip/DSC1121CM1-026.5625","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CM1-026.5625","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121 series MEMS XO, 26.5625 MHz CMOS output, ±50 ppm stability, 2.25V–3.6V supply, AEC-Q100 qualified, -55°C to 125°C, 6-SMD package","salesMarkdown":"The DSC1121CM1-026.5625 is a MEMS-based XO (Standard) that delivers a 26.5625 MHz CMOS clock from a 2.25V to 3.6V supply rail — the wide voltage range lets it run from a 2.5V or 3.3V rail without an external LDO. ## MEMS resonator vs quartz — what it changes for the BOM The ±50 ppm frequency stability covers the full temperature range and supply variation. 6-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — the standard 3.2 x 2.5 mm MEMS oscillator footprint. Surface-mount reflow profile follows JEDEC J-STD-020 for MSL level; no special bake required before assembly if the moisture barrier bag is intact. The Enable/Disable pin is active-low (disable when pulled low). If the pin is left floating, internal pull-up keeps the oscillator enabled — but for production, tie it to Vdd or a GPIO to avoid noise coupling.","metaTitle":"DSC1121CM1-026.5625 MEMS XO – 26.5625 MHz, CMOS, AEC-Q100","metaDescription":"Microchip DSC1121CM1-026.5625 MEMS oscillator: 26.5625 MHz, CMOS output, ±50 ppm stability, AEC-Q100, -55°C to 125°C, 6-SMD.","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":"26.5625 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 DSC1121CM1-026.5625 a drop-in replacement for conventional quartz oscillators?","answer":"Yes — the DSC1121 series uses a MEMS resonator but is footprint- and function-compatible with standard 3.2 x 2.5 mm quartz XOs. The CMOS output, supply voltage range, and Enable/Disable pinout match the industry-standard 6-SMD layout. No board spin is required to swap from quartz to this MEMS part."},{"question":"What is the difference between the DSC1121 and DSC1122 series?","answer":"The DSC1121 series (this part) offers a standard ±50 ppm frequency stability. The DSC1122 series provides ±25 ppm stability for tighter timing budgets. Both share the same MEMS resonator, package, supply range, and temperature grade. The DSC1122 is the higher-stability sibling; the DSC1121 is the cost-optimized choice for most applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CM1-026.5625","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CM1-026.5625 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}}