This page contains a variety of links, tools, resources, and design notes that you may find useful. Top Marking Databases and Part Numbering Lookups Linear Technology Maxim Texas Instruments Component Databases Silicon Expert Octopart Calculators and Tools Trace Width Calculator EMI Design Notes Intel - EMI Design Notes for USB Components SI Labs - AN0046 USB Hardware Design Guide Cypress FX2 Resources FX2 Technical Reference AN15456 FX2 Hardware Design Note