{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1001BI1-066.6666","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1001BI1-066.6666","canonicalUrl":"https://icboms.com/microchip/DSC1001BI1-066.6666","factsUrl":"https://icboms.com/api/mcp/products/DSC1001BI1-066.6666","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1001BI1-066.6666, XO (Standard), 66.6666 MHz, CMOS, AEC-Q100, 1.8V–3.3V, ±50ppm, 7.2mA, Standby (Power Down), 4-SMD (5.00mm x 3.20mm), -40°C~85°C.","salesMarkdown":"## AEC-Q100 Grade – qualified, not just capable The OEM auditor will ask for PPAP; the AEC-Q100 listing on the datasheet is the first pass. For an under-hood engine-bay ECU that sees 105°C on a summer-grade road, you need Grade 1 or 0 – this part fits cabin, chassis, or ADAS sensor modules where the ambient stays below 85°C. ## 66.6666 MHz – the exact frequency for Ethernet and SERDES 66.6666 MHz is a common reference for 10/100/1000BASE-T Ethernet PHYs and many SERDES PLLs that multiply up to 125 MHz or 156.25 MHz. The ±50ppm frequency stability keeps the bit-error rate within the PHY's tracking range across temperature. The CMOS output drives standard logic inputs directly – no level translator or AC-coupling needed. The 7.2mA max supply current is the total draw at 66.6666 MHz; the standby mode drops it to 15µA for sleep states. The supply voltage range is 1.8V to 3.3V – this single part covers 1.8V, 2.5V, and 3.3V logic rails without a separate regulator. The 4-SMD, No Lead package measures 5.00mm x 3.20mm with a seated height of 0.90mm max – a compact footprint for space-constrained PCBs. Surface-mount reflow soldering is standard; the no-lead construction eliminates side-wetting inspection. ## Lifecycle status and sourcing No pin-compatible second source or successor is listed by Microchip, but the DSC1001 series shares the same MEMS resonator and package, so a different frequency variant is a drop-in if the BOM tolerance allows.","metaTitle":"DSC1001BI1-066.6666 – Microchip XO, 66.6666 MHz, AEC-Q100","metaDescription":"DSC1001BI1-066.6666: Microchip MEMS XO, 66.6666 MHz, CMOS output, AEC-Q100 qualified, -40°C–85°C, 1.8–3.3V supply, 7.2mA max, standby function.","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":"Tube","Ratings":"AEC-Q100","Function":"Standby (Power Down)","Frequency":"66.6666 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"4-SMD, No Lead","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"1.8V ~ 3.3V","Base Product Number":"DSC1001","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"7.2mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"15µA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6e16d8c0e20d671fdec1bc4732fc9156.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DSC1001BI1-066.6666 AEC-Q100 qualified?","answer":"Yes, it carries an AEC-Q100 rating."},{"question":"What is the output type of DSC1001BI1-066.6666?","answer":"CMOS – drives standard logic inputs directly."},{"question":"Does DSC1001BI1-066.6666 have a standby function?","answer":"Yes, it has a Standby (Power Down) function that drops supply current to 15µA max."},{"question":"Can DSC1001BI1-066.6666 replace a standard quartz oscillator?","answer":"Yes, as a MEMS-based XO it is pin-compatible with most 4-pin quartz oscillators in the 5.00mm x 3.20mm package. The ±50ppm stability matches many quartz specs; the MEMS resonator is more shock and vibration tolerant. Confirm the output type (CMOS) and supply voltage range (1.8–3.3V) match your BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1001BI1-066.6666","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1001BI1-066.6666 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}}