{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1033DE1-018.4320T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1033DE1-018.4320T","canonicalUrl":"https://icboms.com/microchip/DSC1033DE1-018.4320T","factsUrl":"https://icboms.com/api/mcp/products/DSC1033DE1-018.4320T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1033DE1-018.4320T, PureSilicon™ MEMS XO, 18.432 MHz, CMOS output, 3.3 V supply, ±50 ppm stability, -20°C to 70°C, standby function, 4-SMD no-lead package, Tape & Reel.","salesMarkdown":"## MEMS clock for 18.432 MHz MCU timing That frequency is a standard baud-rate generator multiple for UART/USART peripherals — common in MCU boards that need 115200 or 921600 baud without fractional-N PLL jitter. Unlike a quartz crystal oscillator, the MEMS base resonator (PureSilicon™ series) is less sensitive to vibration and shock, and the supply chain is not tied to quartz crystal lead times. The 4-SMD no-lead package (2.50 mm × 2.00 mm) fits the same footprint as many quartz oscillators, so a board designed for a quartz XO can often take this part without a layout change. For a UART clock, ±50 ppm keeps the bit-error rate below 1% at 115200 baud across the full temperature band, assuming the receiver's tolerance is ±2%.","metaTitle":"DSC1033DE1-018.4320T MEMS XO 18.432 MHz CMOS 3.3V -","metaDescription":"DSC1033DE1-018.4320T MEMS oscillator, 18.432 MHz, CMOS output, 3.3V, ±50 ppm, -20°C to 70°C, standby function. Active production, sourced per RFQ.","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":"DSC1033, PureSilicon™","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Standby (Power Down)","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":"3.3V","Base Product Number":"DSC1033","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-20°C~70°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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/39044fcc9825a23a0d54b2590f18614f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1033DE1-018.4320T/alternatives.json"},"ai":{"faq":[{"question":"Can DSC1033DE1 replace a quartz oscillator on my board?","answer":"Yes, in most cases. The DSC1033DE1 is a MEMS XO with the same 4-SMD no-lead footprint (2.50 mm × 2.00 mm) and 3.3 V supply as many quartz oscillators. The ±50 ppm stability is comparable to standard quartz XOs. The main difference is the MEMS resonator's better shock/vibration tolerance and the absence of quartz supply lead-time risk."},{"question":"What is the maximum standby current for DSC1033?","answer":"The disable (standby) current is 1 µA max. When the standby pin is asserted, the output is disabled and the oscillator core powers down to that level."},{"question":"Is the DSC1033DE1 RoHS compliant?","answer":"The part is listed as RoHS compliant per Microchip's standard product marking. The 4-SMD no-lead package is lead-free compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1033DE1-018.4320T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1033DE1-018.4320T 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}}