{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CM1-026.5625T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CM1-026.5625T","canonicalUrl":"https://icboms.com/microchip/DSC1121CM1-026.5625T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CM1-026.5625T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1121CM1-026.5625T, XO (Standard), 26.5625 MHz, CMOS output, MEMS base resonator, 6-SMD no-lead, AEC-Q100, -55°C to 125°C, active production.","salesMarkdown":"## 26.5625 MHz MEMS XO — AEC-Q100, full military temp Microchip DSC1121CM1-026.5625T is a fixed-frequency MEMS-based XO (Standard) delivering 26.5625 MHz with CMOS output. The MEMS resonator replaces a quartz crystal — no start-up time, no crystal load cap selection, and inherently more shock and vibration tolerant than a quartz oscillator. Rated across -55°C to 125°C with ±50 ppm frequency stability, this part fits avionics, downhole, satellite, and engine-bay applications where the ambient temperature exceeds standard industrial limits. The AEC-Q100 qualification adds the automotive reliability stress screening — PPAP, temperature cycling, ESD, and latch-up — required for under-hood and chassis-domain ECUs. ## Supply range and enable/disable function Supply voltage spans 2.25V to 3.6V — one oscillator covers 2.5V and 3.3V logic rails without a separate regulator. The Enable/Disable pin lets a GPIO gate the output: disable mode drops supply current from 35 mA max to 22 mA max, useful for power-cycled sensor nodes or multi-frequency clock trees. ## Package — 3.20 mm × 2.50 mm, 6-SMD no-lead Housed in a 6-SMD no-lead package measuring 3.20 mm × 2.50 mm with a seated height of 0.90 mm. The no-lead land pattern matches standard MEMS oscillator footprints — no through-hole, no bent leads. ## Active lifecycle — no LTB urgency This is a current-production part from Microchip — no last-time-buy window to manage, no forced redesign. Sourced through independent distribution; quoted to order against the BOM quantity.","metaTitle":"DSC1121CM1-026.5625T Datasheet, Specs, Buy","metaDescription":"DSC1121CM1-026.5625T: XO (Standard) MEMS oscillator, 26.5625 MHz, CMOS output, AEC-Q100, -55°C to 125°C. Active production. RFQ 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":"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":"Can DSC1121CM1-026.5625T replace a standard quartz oscillator?","answer":"Yes — the MEMS base resonator is a drop-in replacement for a quartz oscillator in the same package and output logic. The MEMS version eliminates crystal aging drift and is more resistant to shock and vibration. No external load capacitors needed; the output is CMOS. Confirm the supply voltage (2.25V–3.6V) and frequency stability (±50 ppm) match your design."},{"question":"Is DSC1121CM1-026.5625T AEC-Q100 qualified?","answer":"Yes, rated AEC-Q100. The qualification covers the automotive-grade reliability stress tests — temperature cycling, ESD, latch-up, and PPAP documentation. Use this part in engine-bay, chassis, or cabin ECUs that require AEC-Q100 compliance."},{"question":"What is the frequency of DSC1121CM1-026.5625T?","answer":"26.5625 MHz fixed. This is a non-programmable oscillator — the frequency is set at the factory. Confirm your clock tree needs this exact frequency before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CM1-026.5625T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CM1-026.5625T 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}}