{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121AI2-003.6864T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121AI2-003.6864T","canonicalUrl":"https://icboms.com/microchip/DSC1121AI2-003.6864T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121AI2-003.6864T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121AI2-003.6864T, MEMS-based XO (Standard), 3.6864 MHz CMOS output, ±25 ppm stability, 2.25V–3.6V supply, -40°C to +85°C, AEC-Q100 qualified, 6-SMD package.","salesMarkdown":"## Automotive-grade MEMS oscillator for ECU clocking The DSC1121AI2-003.6864T is a MEMS-based XO (Standard) from Microchip, delivering a 3.6864 MHz CMOS output with ±25 ppm frequency stability over -40°C to +85°C. Rated AEC-Q100, it carries the qualification documentation — PPAP, temperature grade, and reliability stress — that an OEM auditor expects for under-hood or cabin-domain electronics. Operating from 2.25V to 3.6V, the oscillator covers 2.5V and 3.3V logic rails without an external level translator — the CMOS output swings to the supply rail, so a 2.5V supply produces a 2.5V-compatible clock. The 3.6864 MHz frequency is a common base for UART baud-rate generation (e.g., 115200 baud) and MCU core clocking in automotive body controllers and gateway modules. Housed in a 6-SMD, No Lead Exposed Pad package measuring 7.00 mm x 5.00 mm x 0.90 mm, the footprint matches industry-standard 7x5 mm oscillator land patterns.","metaTitle":"DSC1121AI2-003.6864T – Microchip MEMS XO, 3.6864 MHz","metaDescription":"Active-production Microchip MEMS XO, 3.6864 MHz, AEC-Q100 qualified, CMOS output, 2.25V–3.6V, -40°C to +85°C.","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":"3.6864 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead 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":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°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 the DSC1121AI2-003.6864T AEC-Q100 qualified for automotive use?","answer":"Yes, it carries an AEC-Q100 rating. This means it has passed the automotive-grade qualification tests — temperature cycling, ESD, latch-up, and extended reliability — and is supported with PPAP documentation. It is not a commercial-grade part dressed up for the automotive bill of materials."},{"question":"Can the DSC1121AI2-003.6864T replace a quartz crystal oscillator?","answer":"Yes, it is a direct drop-in replacement for a standard 3.6864 MHz quartz XO in the same 7x5 mm footprint. The MEMS resonator eliminates quartz crystal aging and start-up reliability issues, and the CMOS output is compatible with the same termination. No board re-spin is needed if the supply voltage and enable logic match."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121AI2-003.6864T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121AI2-003.6864T 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}}