{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121BI2-040.6800T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121BI2-040.6800T","canonicalUrl":"https://icboms.com/microchip/DSC1121BI2-040.6800T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121BI2-040.6800T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121 series, XO (Standard) MEMS oscillator, 40.68 MHz, CMOS output, ±25 ppm stability, -40°C to 85°C, 2.25V~3.6V supply, 6-VDFN package, Tape & Reel","salesMarkdown":"## 40.68 MHz MEMS oscillator with ±25 ppm stability The DSC1121BI2-040.6800T: Supply voltage spans 2.25V to 3.6V, so it runs directly off a 2.5V, 3.0V, or 3.3V rail without an intermediate LDO — a clean fit for mixed-voltage designs. Maximum supply current is 35 mA when enabled; the Enable/Disable function pulls 22 mA max in the disabled state, useful for power-gating the clock tree during sleep modes. ## Package and footprint — 6-VDFN, 5.0 x 3.2 mm Housed in a 6-VDFN package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm max, this oscillator occupies a compact footprint suitable for space-constrained PCBs. Surface-mount assembly; the 6-VDFN outline is common among MEMS oscillators, so the PCB land pattern is straightforward and the part reflows with standard lead-free profiles. ## Active lifecycle — no obsolescence risk for new builds Suitable for both new designs and ongoing production.","metaTitle":"DSC1121BI2-040.6800T MEMS Oscillator 40.68 MHz CMOS XO","metaDescription":"DSC1121BI2-040.6800T XO (Standard) MEMS oscillator, 40.68 MHz, CMOS output, ±25 ppm stability, -40°C to 85°C, 2.25V-3.6V supply, 6-VDFN package.","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":"40.68 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-VDFN","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)":"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 I replace a quartz oscillator with this MEMS oscillator?","answer":"Functionally yes, if the quartz part is a 40.68 MHz CMOS-output XO with Enable/Disable and fits a 6-VDFN footprint. MEMS oscillators offer better shock and vibration immunity and faster startup than quartz, but confirm the output drive strength and load capacitance match your receiver's input threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121BI2-040.6800T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121BI2-040.6800T 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}}