{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121BE2-155.5200","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121BE2-155.5200","canonicalUrl":"https://icboms.com/microchip/DSC1121BE2-155.5200","factsUrl":"https://icboms.com/api/mcp/products/DSC1121BE2-155.5200","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1121BE2-155.5200, XO (Standard) MEMS oscillator, 155.52 MHz CMOS output, ±25 ppm stability, 2.25V to 3.6V supply, -20°C to 70°C, 6-VDFN package.","salesMarkdown":"## 155.52 MHz MEMS oscillator for high-speed timing The DSC1121BE2-155.5200 is a MEMS-based XO (Standard) oscillator delivering a 155.52 MHz CMOS output — a common reference frequency for 1GbE, Fibre Channel, and SONET/SDH line cards. ## Wide supply tolerance and MEMS construction Supply voltage spans 2.25V to 3.6V, so the same BOM line works on a 2.5V FPGA bank or a 3.3V ASIC rail without a separate regulator or level translator. Packaged in a 6-VDFN measuring 5.00mm x 3.20mm with a seated height of 0.90mm, it fits the same footprint as standard quartz oscillators of the same dimensions, simplifying a drop-in replacement.","metaTitle":"DSC1121BE2-155.5200 MEMS Oscillator 155.52 MHz CMOS Active","metaDescription":"Microchip DSC1121BE2-155.5200 XO (Standard) MEMS oscillator, 155.52 MHz CMOS output, ±25 ppm stability, 2.25-3.6V supply, -20°C to 70°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":"Tube","Ratings":"-","Function":"Enable/Disable","Frequency":"155.52 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":"-20°C ~ 70°C","Current - Supply (Max)":"35mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1121BE2-155.5200/alternatives.json"},"ai":{"faq":[{"question":"Is DSC1121BE2-155.5200 a direct replacement for a standard quartz oscillator of the same frequency?","answer":"Yes, in most cases. The DSC1121BE2-155.5200 uses a MEMS resonator instead of quartz, but it outputs a standard CMOS signal at 155.52 MHz with ±25 ppm stability and fits the same 5.00mm x 3.20mm 6-VDFN footprint. The supply range (2.25V to 3.6V) covers 2.5V and 3.3V quartz oscillators. The only difference is the Enable/Disable function — if your existing quartz oscillator does not have that pin, verify the pinout matches before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121BE2-155.5200","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121BE2-155.5200 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}}