{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1001CI2-073.7280T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1001CI2-073.7280T","canonicalUrl":"https://icboms.com/microchip/DSC1001CI2-073.7280T","factsUrl":"https://icboms.com/api/mcp/products/DSC1001CI2-073.7280T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1001CI2-073.7280T, XO (Standard) MEMS oscillator, 73.728 MHz CMOS output, ±25 ppm frequency stability, 1.8V–3.3V supply, AEC-Q100 qualified, -40°C to 85°C, 4-SMD no-lead package.","salesMarkdown":"## 73.728 MHz MEMS XO — automotive-grade CMOS clock source The DSC1001CI2-073.7280T is a MEMS-based XO (Standard) oscillator delivering a fixed 73.728 MHz CMOS output — a common reference frequency for 1000BASE-T Ethernet PHYs, video pixel clocks, and SerDes reference paths. The 1.8V to 3.3V supply range lets a single part number serve multiple voltage domains on the same BOM — one oscillator for a 1.8V FPGA bank and a 3.3V PHY, no level translation. ## AEC-Q100 qualification — under-hood and cabin deployment The standby (power-down) pin pulls the oscillator current to 15 µA max — the output enters high-impedance state, letting the clock tree float without contention.","metaTitle":"DSC1001CI2-073.7280T MEMS XO 73.728 MHz CMOS AEC-Q100 -","metaDescription":"DSC1001CI2-073.7280T MEMS oscillator, 73.728 MHz CMOS output, ±25 ppm stability, 1.8-3.3V supply, AEC-Q100, -40°C to 85°C.","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":"DSC1001","Package":"Tape & Reel (TR)","Ratings":"AEC-Q100","Function":"Standby (Power Down)","Frequency":"73.728 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"4-SMD, No Lead","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"1.8V ~ 3.3V","Base Product Number":"DSC1001","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"8.7mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"15µA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6e16d8c0e20d671fdec1bc4732fc9156.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1001CI2-073.7280T/alternatives.json"},"ai":{"faq":[{"question":"Is DSC1001CI2-073.7280T AEC-Q100 qualified?","answer":"Yes, it carries AEC-Q100 rating."},{"question":"How does DSC1001CI2-073.7280T compare to a standard quartz crystal oscillator?","answer":"The MEMS resonator is more resistant to shock and vibration than a quartz crystal. The ±25 ppm stability is comparable to a standard quartz XO, but the MEMS part typically has lower jitter and faster start-up. The supply range (1.8V–3.3V) is wider than most fixed-voltage quartz oscillators."},{"question":"What is the function of the standby pin on DSC1001CI2-073.7280T?","answer":"The Standby (Power Down) function disables the output and drops supply current to 15 µA max. The output goes high-impedance, so multiple oscillators can share a clock line without bus contention when one is disabled."},{"question":"Can DSC1001CI2-073.7280T be used as a replacement for a failed oscillator in an existing circuit?","answer":"If the original was a 73.728 MHz CMOS-output XO in a 4-SMD no-lead package with a 1.8V–3.3V supply, then yes — the pinout and footprint match the standard 3.2 mm x 2.5 mm oscillator land pattern. Confirm the original's supply voltage and enable logic before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1001CI2-073.7280T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1001CI2-073.7280T 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}}