{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC8121BI2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC8121BI2T","canonicalUrl":"https://icboms.com/microchip/DSC8121BI2T","factsUrl":"https://icboms.com/api/mcp/products/DSC8121BI2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC8121 series MEMS XO (Standard), CMOS output, 6-SMD No Lead package, 10 MHz ~ 100 MHz frequency range, ±25 ppm stability, -40°C ~ 85°C operating temperature, 2.25V ~ 3.6V supply, Enable/Disable function, Blank (User Must Program).","salesMarkdown":"## MEMS resonator, blank-programmable clock source The DSC8121BI2T: Unlike quartz-based oscillators, the MEMS resonator structure is inherently more resistant to vibration and shock, and the blank-programmable nature means the part ships without a pre-set frequency — you program it to your exact target using Microchip's TimeFlash or field-programmer tools, which is useful for prototype runs or low-volume production where stocking multiple pre-programmed frequencies is impractical. ## Stability, temperature, and supply tolerance For a 100 MHz carrier, ±25 ppm translates to a maximum frequency error of ±2.5 kHz — tight enough for most UART, SPI, and Ethernet clocking applications, but not tight enough for precision timing like IEEE 1588 or GPS holdover, where ±10 ppm or better is typical.","metaTitle":"DSC8121BI2T MEMS XO, CMOS, 10-100 MHz, ±25 ppm","metaDescription":"Microchip DSC8121BI2T MEMS oscillator, XO (Standard), CMOS output, 10 MHz to 100 MHz, ±25 ppm stability, -40°C to 85°C, 6-SMD. Active, factory-programmable.","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":"DSC8121","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Enable/Disable","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","Programmable Type":"Blank (User Must Program)","Base Product Number":"DSC8121","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"35mA","Available Frequency Range":"10 MHz ~ 100 MHz","Spread Spectrum Bandwidth":"-","Frequency Stability (Total)":"-","Current - Supply (Disable) (Max)":"22 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9aa5bcb33c349ee19debb7b556b38a00.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC8121BI2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC8121BI2T 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}}