{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121BI2-020.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121BI2-020.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1121BI2-020.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121BI2-020.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1121 series MEMS XO, 20 MHz CMOS output, ±25 ppm stability, 2.25 V to 3.6 V supply, -40°C to +85°C, 6-SMD package, tape-and-reel.","salesMarkdown":"## Why a MEMS oscillator sidesteps quartz startup issues The DSC1121BI2-020.0000T uses a MEMS resonator instead of a quartz crystal — no load-capacitance matching, no negative-resistance margin to verify, and no startup delay from a high-ESR blank. The MEMS structure is sealed at the wafer level and does not age or drift the way a quartz blank does over thermal cycling. Output is CMOS, so it drives standard logic inputs directly without an external buffer. The enable/disable function lets the system gate the clock line for low-power sleep modes without a separate load switch. ## Industrial temperature grade and supply flexibility Frequency stability is ±25 ppm across the full temperature and voltage range, which keeps the 20 MHz clock within ±500 Hz of nominal — tight enough for a CAN bus or a 100BASE-TX PHY reference. Microchip lists the DSC1121BI2-020.0000T as Active. There is no NRND notice or last-time-buy window — the part is available for both new designs and production replenishment. Sourced through independent distribution; quoted to order against the BOM quantity.","metaTitle":"DSC1121BI2-020.0000T MEMS XO – Microchip, 20 MHz, CMOS","metaDescription":"Microchip DSC1121BI2-020.0000T MEMS oscillator: 20 MHz, CMOS output, ±25 ppm stability, -40°C to +85°C, 6-SMD. Active production – quote to order.","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":"-","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":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1121","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"22mA","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":"Can the DSC1121BI2-020.0000T replace a standard quartz crystal oscillator on my board?","answer":"Yes, if the board expects a CMOS-level clock input. The DSC1121BI2-020.0000T outputs a CMOS waveform at 20 MHz, so it drives the same logic input as a quartz XO. The MEMS resonator eliminates the external load capacitors and the startup reliability concern — the oscillator starts and holds frequency without the matching network a quartz crystal requires."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121BI2-020.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121BI2-020.0000T 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}}