{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1001DI1-018.4320","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1001DI1-018.4320","canonicalUrl":"https://icboms.com/microchip/DSC1001DI1-018.4320","factsUrl":"https://icboms.com/api/mcp/products/DSC1001DI1-018.4320","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1001DI1-018.4320, DSC1001 series MEMS XO (Standard), 18.432 MHz, CMOS output, AEC-Q100 qualified, -40°C to +85°C, 1.8V-3.3V supply, 4-SMD no-lead package.","salesMarkdown":"## 18.432 MHz fixed-frequency XO for automotive and industrial clocks The DSC1001DI1-018.4320 is a MEMS-based XO (Standard) delivering a fixed 18.432 MHz CMOS output — a common frequency for UART baud-rate generation, CAN controllers, and MCU clock trees in automotive body electronics. Its AEC-Q100 qualification means it has passed the automotive-grade reliability stress tests: temperature cycling, ESD, and latch-up. That makes it a direct fit for under-hood and cabin modules where a standard quartz oscillator would require additional screening. The MEMS resonator base gives it better shock and vibration tolerance than a quartz crystal — relevant for engine-mount ECUs and transmission controllers that see constant mechanical stress. ## Supply voltage flexibility and power budget The 1.8V to 3.3V supply range means the same oscillator can be used across multiple voltage domains — a single BOM line covers both the 3.3V I/O bank and the 1.8V core clock on a mixed-voltage design. Maximum supply current is 6.3 mA — low enough that a small LDO or a direct rail tap can feed it without thermal concern. When disabled, the supply current drops to 15 µA, useful for sleep-mode power budgets in battery-backed modules. ## Temperature range and frequency stability No derating needed for outdoor telecom enclosures or engine-bay-adjacent mounting. Frequency stability is ±50 ppm — tight enough for most UART and CAN bit-timing requirements; a 50 ppm error at 18.432 MHz corresponds to roughly 920 Hz of drift, well within the tolerance of a standard MCU PLL. ## Package and footprint for board layout Housed in a 4-SMD, no-lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm — a compact footprint that fits on dense automotive PCBs alongside QFN and BGA packages. Surface-mount mounting with the enable/disable function allows the oscillator to be tri-stated for boundary-scan testing or power-down modes without an external load switch. No last-time-buy window to schedule; it is available for both new designs and ongoing production.","metaTitle":"DSC1001DI1-018.4320 MEMS XO – 18.432 MHz, AEC-Q100","metaDescription":"Microchip DSC1001DI1-018.4320 MEMS XO (Standard) – 18.432 MHz, CMOS output, AEC-Q100 qualified, -40°C to +85°C, 1.8V-3.3V supply. Active lifecycle.","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":"Enable/Disable","Frequency":"18.432 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"4-SMD, No Lead","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.098\\\" L x 0.079\\\" W (2.50mm x 2.00mm)","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)":"6.3mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"15µA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8850","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6e16d8c0e20d671fdec1bc4732fc9156.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the DSC1001DI1-018.4320 AEC-Q100 qualified?","answer":"Yes — the ratings field explicitly lists AEC-Q100 qualification. That means it has passed the automotive-grade stress tests (temperature cycling, ESD, latch-up) and is suitable for under-hood and cabin automotive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1001DI1-018.4320","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1001DI1-018.4320 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}}