{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121AM1-020.0000","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121AM1-020.0000","canonicalUrl":"https://icboms.com/microchip/DSC1121AM1-020.0000","factsUrl":"https://icboms.com/api/mcp/products/DSC1121AM1-020.0000","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121 series, XO (Standard) 20 MHz CMOS MEMS oscillator, ±50 ppm stability, 2.25V~3.6V supply, -55°C~125°C, 6-VDFN exposed pad, Enable/Disable function","salesMarkdown":"## Why a MEMS oscillator instead of quartz The DSC1121AM1-020.0000 uses a MEMS resonator rather than a quartz crystal — the silicon structure is inherently more resistant to shock and vibration than a quartz blank, and startup is nearly instantaneous with no crystal start-up time to budget. ## Supply voltage and output — one part fits 2.5V and 3.3V rails The 2.25V to 3.6V supply range means the same order code works on a 2.5V FPGA bank or a 3.3V microcontroller rail — no need to qualify a separate voltage variant. CMOS output swings rail-to-rail, so the rising edge into a 15 pF load is clean enough for a 20 MHz clock tree without an external buffer. ## Package and board layout — 6-VDFN with exposed pad Enable/Disable function on pin 1 lets the system shut down the oscillator without a separate load switch — useful for power-sensitive designs that clock-gate the peripheral. ## Lifecycle status and sourcing Suitable for new designs and production builds. Sourced through independent distribution; quoted to order against the BOM quantity.","metaTitle":"DSC1121AM1-020.0000 MEMS Oscillator 20MHz CMOS -55°C~125°C","metaDescription":"Microchip DSC1121AM1-020.0000 XO (Standard) 20MHz CMOS MEMS oscillator, ±50ppm stability, 2.25V~3.6V supply, -55°C~125°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":"Tube","Ratings":"-","Function":"Enable/Disable","Frequency":"20 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-VDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.276\\\" L x 0.197\\\" W (7.00mm x 5.00mm)","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)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative in the DSC1121 family?","answer":"The DSC1121 series shares the same 6-VDFN footprint and pinout across all frequency and stability variants. A different frequency or tighter stability (±25 ppm) would be a different base product number (DSC1121xx), but the package and function are identical."},{"question":"What supply voltage does DSC1121AM1-020.0000 accept?","answer":"It operates from 2.25V to 3.6V, covering both 2.5V and 3.3V rails without an external regulator. The CMOS output swings rail-to-rail across that range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121AM1-020.0000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121AM1-020.0000 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}}