{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1104CE2-027.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1104CE2-027.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1104CE2-027.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1104CE2-027.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1104CE2-027.0000T, MEMS-based XO (Standard), 27 MHz, HCSL output, ±25 ppm stability, 2.25V–3.6V supply, -20°C to 70°C, 6-SMD package, standby (power down) function.","salesMarkdown":"## HCSL output for PCIe and high-speed serial clocks The DSC1104CE2-027.0000T: This oscillator delivers a 27 MHz HCSL (High-Speed Current Steering Logic) output, the standard for PCIe reference clocks and many high-speed serial interfaces. Unlike LVDS or LVPECL, HCSL swings from ground to about 0.7V and requires a 50-ohm termination to ground at the receiver — a detail that matters when laying out the clock trace. ## MEMS resonator vs quartz: what it changes on the BOM The trade-off is that MEMS parts have slightly higher phase noise at close-in offsets, but for a 27 MHz HCSL clock feeding a PCIe reference, the jitter budget is usually met without issue. When enabled, the oscillator draws 42 mA max at 27 MHz. For a battery-powered board that sleeps between operations, this standby current is low enough to leave the oscillator powered continuously — no need for a load switch on the Vdd rail. Runs from 2.25V to 3.6V, covering both 2.5V and 3.3V logic rails without a separate regulator. Not rated for automotive or extended industrial ambient. 6-SMD, no-lead package, 3.20 mm x 2.50 mm body, 0.90 mm seated height. The 0.126\" x 0.098\" footprint is compatible with standard 3.2 x 2.5 mm oscillator pads. No thermal pad — the part dissipates under 150 mW at 3.6V, so a standard FR-4 copper pour under the package is sufficient.","metaTitle":"DSC1104CE2-027.0000T – Microchip MEMS XO, HCSL Output","metaDescription":"Microchip DSC1104CE2-027.0000T: MEMS XO, 27 MHz, HCSL output, ±25 ppm stability, 2.25V–3.6V supply, standby function. Active production, surface-mount 6-SMD.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"HCSL","Series":"DSC1104","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Function":"Standby (Power Down)","Frequency":"27 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead","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 ~ 3.6V","Base Product Number":"DSC1104","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"42mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"95µA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11b93dcf3fe2344432ea2f214a7ea724.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the standby (power down) function on DSC1104CE2?","answer":"The standby function disables the output (high-impedance) and reduces supply current to 95 µA max. It is controlled by a dedicated pin — pulling it low puts the oscillator into power-down mode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1104CE2-027.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1104CE2-027.0000T 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}}