{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121AI2-165.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121AI2-165.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1121AI2-165.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121AI2-165.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121AI2-165.0000T, XO (Standard) MEMS oscillator, 165 MHz CMOS output, ±25 ppm stability, AEC-Q100, -40 to 85°C, 6-SMD no-lead exposed pad package.","salesMarkdown":"## 165 MHz MEMS oscillator with AEC-Q100 qualification The DSC1121AI2-165.0000T is a 165 MHz XO (Standard) oscillator built on a MEMS resonator rather than a quartz crystal, outputting a CMOS-level clock. AEC-Q100 qualification means this part has passed the automotive-grade reliability stress tests — temperature cycling, ESD, latch-up — so it fits BOM lines destined for under-hood or cabin electronics where a quartz oscillator might not hold its accuracy over the vehicle lifetime. ## Supply range and disable function The supply voltage spans 2.25 V to 3.6 V, covering the common 2.5 V and 3.3 V logic rails without an external regulator. The Enable/Disable function lets a downstream controller gate the clock output; when disabled the supply current drops from 35 mA max to 22 mA max, which helps in power-sensitive or standby modes. ## Package and board-level fit Housed in a 6-SMD no-lead exposed pad package measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm, the DSC1121AI2-165.0000T uses a standard 7x5 mm footprint. The exposed pad on the underside should be soldered to a ground-plane copper pour for thermal and mechanical stability — the datasheet's recommended land pattern shows the via placement under the pad.","metaTitle":"DSC1121AI2-165.0000T – Microchip MEMS XO, 165 MHz, CMOS","metaDescription":"DSC1121AI2-165.0000T: Microchip MEMS oscillator, 165 MHz CMOS output, ±25 ppm stability, AEC-Q100, -40 to 85°C, 6-SMD. Active production – quoted to order.","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":"DSC1121","Package":"Tape & Reel (TR)","Ratings":"AEC-Q100","Function":"Enable/Disable","Frequency":"165 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-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":"2.25V ~ 3.6V","Base Product Number":"DSC1121","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"35mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the frequency stability of the DSC1121AI2-165.0000T?","answer":"The frequency stability is ±25 ppm over the -40 to 85°C operating range. This covers the timing budget for most 165 MHz reference clocks without needing external compensation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121AI2-165.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121AI2-165.0000T 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}}