{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1033CI2-012.2880T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1033CI2-012.2880T","canonicalUrl":"https://icboms.com/microchip/DSC1033CI2-012.2880T","factsUrl":"https://icboms.com/api/mcp/products/DSC1033CI2-012.2880T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1033 PureSilicon™ MEMS XO, 12.288 MHz, CMOS output, ±25ppm stability, 3.3V supply, -40 to 85°C, 4-SMD no-lead package","salesMarkdown":"## 12.288 MHz MEMS oscillator — why it was picked and what it does The DSC1033CI2-012.2880T is a MEMS-based XO from Microchip's PureSilicon™ series, delivering a 12.288 MHz CMOS output with ±25 ppm frequency stability across -40 to 85°C. That frequency is a dead giveaway for telecom timing — 12.288 MHz is 8× the T1 rate (1.544 MHz) and a common audio sample-rate master clock. The MEMS resonator means no quartz crystal to age or shock-susceptible; it's a solid-state timing source that holds its spec in vibration-heavy environments. In normal operation the oscillator draws 3 mA typical — low enough for battery-powered equipment that needs to wake on a schedule. The 1 µA standby current means the oscillator won't drain a coin cell during long idle periods. If you're starting a new design, look at Microchip's current DSC1000 or DSC2000 series for a MEMS XO in the same 3.2×2.5 mm footprint; verify pinout and control logic before swapping.","metaTitle":"DSC1033CI2-012.2880T MEMS XO 12.288 MHz CMOS ±25ppm Obsolete","metaDescription":"Microchip DSC1033CI2-012.2880T MEMS XO, 12.288 MHz, CMOS output, ±25ppm stability, 3.3V, -40 to 85°C. Obsolete — sourced per RFQ. Request quote.","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":"DSC1033, PureSilicon™","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Standby (Power Down)","Frequency":"12.288 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"4-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":"3.3V","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"3mA (Typ)","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"1µA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/39044fcc9825a23a0d54b2590f18614f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the DSC1033CI2-012.2880T?","answer":"No pin-compatible replacement is documented in the available records. Microchip's current DSC1000 or DSC2000 series MEMS oscillators share the same 3.2×2.5 mm 4-SMD package, but you must verify the pinout, control logic, and frequency stability before substituting. The DSC1033CI2-012.2880T uses a Standby (Power Down) function — check if the replacement uses the same pin assignment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1033CI2-012.2880T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1033CI2-012.2880T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-18T15:28:20.579Z","lastPublished":"2026-07-18T15:28:20.579Z","indexable":true}}