{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1222CI3-164M4257T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1222CI3-164M4257T","canonicalUrl":"https://icboms.com/microchip/DSC1222CI3-164M4257T","factsUrl":"https://icboms.com/api/mcp/products/DSC1222CI3-164M4257T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1222CI3-164M4257T, XO (Standard) MEMS oscillator, 164.4257 MHz LVPECL output, ±20 ppm stability, -40°C to 85°C, 6-VDFN package.","salesMarkdown":"## MEMS oscillator for 164.4257 MHz LVPECL clock trees The DSC1222CI3-164M4257T is an active MEMS-based XO delivering a 164.4257 MHz LVPECL output — a common reference frequency for high-speed serial interfaces, FPGA transceivers, and Ethernet PHYs that require a differential clock. ## Supply rail and power budget Runs from a 2.25 V to 3.63 V supply — compatible with 2.5 V and 3.3 V logic rails. The 50 mA typical supply current at 164.4257 MHz is the full-load draw; disabling the output drops it to 23 mA typical.","metaTitle":"DSC1222CI3-164M4257T XO 164.4257 MHz LVPECL MEMS Oscillator","metaDescription":"Active MEMS XO, 164.4257 MHz LVPECL output, ±20 ppm stability, -40°C to 85°C. 6-VDFN package. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"LVPECL","Series":"DSC1222","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Enable/Disable","Frequency":"164.4257 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-VDFN","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"2.25V ~ 3.63V","Frequency Stability":"±20ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"50mA (Typ)","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"23mA (Typ)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Can DSC1222CI3-164M4257T replace a quartz crystal oscillator in my design?","answer":"Functionally yes — it is a drop-in XO replacement for a 164.4257 MHz LVPECL clock source. The MEMS resonator offers faster startup and better long-term frequency stability than a quartz crystal, but the output logic level (LVPECL) must match the receiver's input standard. Confirm the supply voltage range (2.25 V to 3.63 V) and the ±20 ppm stability requirement against your timing budget."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1222CI3-164M4257T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1222CI3-164M4257T 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}}