{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1033AI2-033.3333C","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1033AI2-033.3333C","canonicalUrl":"https://icboms.com/microchip/DSC1033AI2-033.3333C","factsUrl":"https://icboms.com/api/mcp/products/DSC1033AI2-033.3333C","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1033, PureSilicon™ MEMS XO, 33.3333 MHz CMOS, ±25 ppm, 3.3V, -40°C to 85°C, standby power-down, 4-SMD no-lead exposed pad.","salesMarkdown":"## 33.3333 MHz MEMS clock — what it replaces and why The DSC1033AI2-033.3333C is a MEMS-based XO (Standard) that outputs a 33.3333 MHz CMOS clock from a 3.3V supply. Frequency stability is ±25 ppm, tight enough for UART, SPI, and most MCU clocking without external capacitors or trimming. The 3 mA typical supply current (max) is roughly half what a comparable quartz oscillator draws at this frequency. ## Standby power-down extends battery life When the system sleeps, the oscillator stops and the output goes high-impedance, so the clock line doesn't back-drive the load. This is the same pin function as a standard quartz oscillator's enable/disable, making it a drop-in replacement for existing XO footprints. For a battery-powered sensor logging once per minute, the 1 µA standby current adds negligible drain during sleep — the oscillator's own draw is below the self-discharge rate of a CR2032 coin cell. The base product number DSC1033 covers a range of frequencies and stability grades in the same 4-SMD no-lead exposed pad package. If the BOM requires a different frequency or tighter stability, the same footprint accepts the sibling variant. ## Package and board layout notes The 4-SMD no-lead exposed pad package measures 7.00 mm x 5.00 mm with a seated height of 0.90 mm max. No moisture sensitivity bake is required before assembly if the sealed reel is opened within the floor-life window.","metaTitle":"DSC1033AI2-033.3333C MEMS Oscillator 33.3333 MHz CMOS XO","metaDescription":"Microchip DSC1033AI2-033.3333C MEMS XO, 33.3333 MHz CMOS output, ±25 ppm stability, 3.3V, -40°C to 85°C, standby power-down. 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":"33.3333 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"4-SMD, No Lead Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.276\\\" L x 0.197\\\" W (7.00mm x 5.00mm)","Voltage - Supply":"3.3V","Base Product Number":"DSC1033","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":"Is the DSC1033AI2-033.3333C a direct replacement for a quartz crystal oscillator?","answer":"Yes, in most designs. The DSC1033 outputs a CMOS clock at 33.3333 MHz from a 3.3V supply with the same footprint and pinout as a standard 4-pin quartz XO. The MEMS resonator eliminates the quartz start-up time and vibration sensitivity, but the electrical interface is identical — no board spin is required."},{"question":"What is the standby current of the DSC1033AI2-033.3333C?","answer":"The standby (power-down) disable current is 1 µA max. When the standby pin is asserted, the oscillator stops and the output goes high-impedance, drawing negligible current from the supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1033AI2-033.3333C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1033AI2-033.3333C 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}}