{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC8121CM5","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC8121CM5","canonicalUrl":"https://icboms.com/microchip/DSC8121CM5","factsUrl":"https://icboms.com/api/mcp/products/DSC8121CM5","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC8121 series XO (Standard), MEMS-based, CMOS output, 6-SMD No Lead package, 2.25V-3.6V supply, ±10ppm stability, -55°C~125°C.","salesMarkdown":"## Obsolete MEMS oscillator — what that means for procurement The DSC8121CM5: Availability is lot-specific and confirmed at RFQ time; expect to work with a distributor that can verify traceability and authenticity before committing the line. ## MEMS resonator and programmable blank — the key spec story It ships as a Blank (User Must Program) device — the frequency is not factory-set. You program it to any frequency in the 10 MHz to 170 MHz range using Microchip's programming tooling. That makes it a single SKU that covers a wide frequency spread, but it also means you cannot pull one from inventory and drop it onto a board without programming first. ## Temperature grade and supply flexibility That 125°C ceiling is the junction temperature, not just ambient — in a sealed enclosure with self-heating, the headroom matters. The ±10ppm frequency stability holds across that entire band, which is tighter than many industrial-grade oscillators manage over -40 to 85°C. The 6-pad footprint is standard for this class of MEMS oscillator — no exposed thermal pad, so the layout is straightforward: decouple the supply pin with a 100nF ceramic close to the package and route the output trace with controlled impedance if the clock edge drives a long trace. Surface-mount only — no through-hole variant. The 0.90mm profile fits well under shielding cans or in tight mezzanine stacks where board-to-board clearance is limited.","metaTitle":"Microchip DSC8121CM5 MEMS XO, CMOS, -55 to 125°C, Obsolete","metaDescription":"Microchip DSC8121CM5 MEMS-based XO, CMOS output, 10-170 MHz, ±10ppm stability, -55 to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"CMOS","Series":"DSC8121","Package":"Tube","Ratings":"-","Function":"Enable/Disable","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"2.25V ~ 3.6V","Programmable Type":"Blank (User Must Program)","Frequency Stability":"±10ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-55°C~125°C","Current - Supply (Max)":"35mA","Available Frequency Range":"10 MHz ~ 170 MHz","Spread Spectrum Bandwidth":"-","Frequency Stability (Total)":"-","Current - Supply (Disable) (Max)":"22 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f4291cdfbb1d6b97bf807244928c2579.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for DSC8121CM5?","answer":"Submit an RFQ through this listing. As an obsolete part, pricing and stock are lot-specific and confirmed at quote time — there is no published price or live inventory count. A sourcing specialist will check independent and broker channels for traceable, authentic units matching your BOM quantity."},{"question":"What is DSC8121CM5's listed type and output?","answer":"The type is XO (Standard) — a MEMS-based oscillator, not a quartz crystal. The output is CMOS, which interfaces directly with most digital logic families without external level translation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC8121CM5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC8121CM5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-19T21:32:31.685Z","lastPublished":"2026-07-19T21:32:31.685Z","indexable":true}}