{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4334Q0023KE1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4334Q0023KE1T","canonicalUrl":"https://icboms.com/microchip/DSC400-4334Q0023KE1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4334Q0023KE1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, 100 MHz and 156.25 MHz outputs, HCSL/LVDS, enable/disable, ±50 ppm stability, -20°C to 70°C, 20-VFQFN exposed pad, tape & reel","salesMarkdown":"## Dual-frequency MEMS clock for high-speed serial links The DSC400-4334Q0023KE1T is a MEMS-based XO (standard) from Microchip's DSC400 series, delivering two fixed output frequencies: 100 MHz on output 1 and 156.25 MHz on output 2. These are common reference clocks for 1 Gigabit Ethernet, PCIe Gen1/2, and 10G Ethernet PHYs — two board-level clock trees from one oscillator. Outputs are configurable as HCSL or LVDS, covering the two dominant differential signalling standards for high-speed serial interfaces. The wide range means you can share a single regulator with the oscillator and the downstream PHY or FPGA bank. Not rated for outdoor or under-hood environments where extended industrial or automotive temperature ranges would be required. Housed in a 20-VFQFN exposed pad package measuring 5.00 mm x 3.20 mm with a height of 0.90 mm.","metaTitle":"DSC400-4334Q0023KE1T MEMS XO – 100 MHz & 156.25 MHz","metaDescription":"Microchip DSC400-4334Q0023KE1T dual-output MEMS oscillator, 100 MHz & 156.25 MHz, HCSL/LVDS, enable/disable, ±50 ppm, -20°C to 70°C, 20-VFQFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Height":"0.035\\\" (0.90mm)","Output":"HCSL, LVDS","Series":"DSC400","Package":"Tape & Reel (TR)","Function":"Enable/Disable","Base Resonator":"MEMS","Package / Case":"20-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC400","Frequency Stability":"±50ppm","Frequency - Output 1":"100MHz","Frequency - Output 2":"156.25MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ddbd3c4bac7f1d0d798266c8e96065cf.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does DSC400-4334Q0023KE1T have an enable/disable function?","answer":"Yes, the enable/disable function is built in. When disabled, the outputs go to a high-impedance state, allowing you to power down the clock tree without removing the supply rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4334Q0023KE1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4334Q0023KE1T 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}}