{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC6121CI1A-0043T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC6121CI1A-0043T","canonicalUrl":"https://icboms.com/microchip/DSC6121CI1A-0043T","factsUrl":"https://icboms.com/api/mcp/products/DSC6121CI1A-0043T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC61XX series XO (Standard) MEMS oscillator, DSC6121CI1A-0043T, dual-output 20MHz & 24MHz CMOS, 1.71V~3.63V supply, ±50ppm stability, -40°C~85°C, 4-VDFN package.","salesMarkdown":"## Obsolete MEMS oscillator — sourcing path for existing BOM lines The DSC6121CI1A-0043T is marked Obsolete by Microchip Technology, meaning the manufacturer has discontinued production with no last-time-buy window remaining. ## Dual-frequency output in a MEMS resonator platform The dual-output architecture means a single device can clock two different logic domains (e.g., a 20 MHz MCU core and a 24 MHz USB peripheral) without a second oscillator or a PLL multiplier. ## Supply voltage, temperature, and power envelope Maximum supply current is 3 mA typical across both outputs — the low draw suits battery-powered or thermally constrained designs where every milliamp matters. ## 4-VDFN package and board integration The 4-pin VDFN has a standard land pattern; the centre pad is not electrically connected, so no thermal-via array is required under the package.","metaTitle":"Microchip DSC6121CI1A-0043T MEMS XO, 20MHz/24MHz, Obsolete","metaDescription":"Microchip DSC6121CI1A-0043T MEMS XO, dual-output 20MHz & 24MHz CMOS, 1.71V-3.63V, -40°C~85°C. 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":"±50ppm","Frequency - Output 1":"20MHz, 24MHz","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/1228b1baf388c49094d52b76abcfca61.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the output frequencies of the DSC6121CI1A-0043T?","answer":"The oscillator generates two CMOS outputs: 20 MHz and 24 MHz. Both are available simultaneously from the same device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC6121CI1A-0043T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC6121CI1A-0043T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-19T21:29:27.433Z","lastPublished":"2026-07-19T21:29:27.433Z","indexable":true}}