{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC6121CI2A-00AHT","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC6121CI2A-00AHT","canonicalUrl":"https://icboms.com/microchip/DSC6121CI2A-00AHT","factsUrl":"https://icboms.com/api/mcp/products/DSC6121CI2A-00AHT","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC61XX series, XO (Standard), MEMS, 4-VDFN, 50MHz & 100MHz dual output, CMOS, ±25ppm stability, 1.71V~3.63V supply, -40°C~85°C.","salesMarkdown":"## Obsolete — last-time-buy window closed The DSC6121CI2A-00AHT: This part is no longer available through the standard Microchip supply channel. ## Dual-frequency MEMS XO in 4-VDFN It delivers two independent output frequencies — 50 MHz and 100 MHz — from a single device, selected via a logic pin. The CMOS output swings rail-to-rail across the full supply range, which means a single oscillator can clock two different-speed domains on the same board without a second crystal or PLL. For a 100 MHz clock, ±25 ppm translates to ±2.5 kHz absolute error — tight enough for most Ethernet, USB, and serial-interface timing budgets without external trimming. ## Power budget and package footprint Maximum supply current is 3 mA typical. At 3.3 V, that is under 10 mW total for both output clocks — negligible in a battery-powered or thermally constrained design. ## Sourcing for BOM lines with this order code Because the DSC6121CI2A-00AHT is obsolete and no pin-compatible successor is listed, the only supply path is through independent surplus inventory. Each lot is verified for authenticity and date-code traceability before quoting.","metaTitle":"DSC6121CI2A-00AHT MEMS XO, 50/100 MHz, 3.2x2.5mm","metaDescription":"Microchip DSC6121CI2A-00AHT MEMS XO, 50 MHz & 100 MHz dual-output CMOS, ±25 ppm stability, 1.71-3.63V supply, 4-VDFN. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Height":"0.035\\\" (0.89mm)","Output":"CMOS","Series":"DSC61XX","Package":"Tape & Reel (TR)","Function":"-","Base Resonator":"MEMS","Package / Case":"4-VDFN","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"1.71V ~ 3.63V","Frequency Stability":"±25ppm","Frequency - Output 1":"50MHz, 100MHz","Frequency - Output 2":"-","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"3mA (Typ)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f782caef4a95170882cc42f6400874e0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy DSC6121CI2A-00AHT?","answer":"This obsolete part is sourced through independent surplus distribution."},{"question":"What is the closest pin-compatible alternative to DSC6121CI2A-00AHT?","answer":"A functional replacement would require a different order code from the DSC61XX family with matching frequency, stability, and supply voltage — confirm the BOM position's timing budget and footprint before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC6121CI2A-00AHT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC6121CI2A-00AHT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-19T21:29:28.444Z","lastPublished":"2026-07-19T21:29:28.444Z","indexable":true}}