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AN4078 - Migrating from EZ-USB® FX2™ to EZ-USB FX2LP™ | Cypress Semiconductor

AN4078 - Migrating from EZ-USB® FX2™ to EZ-USB FX2LP™

Last Updated: 
Aug 13, 2015

AN4078_C provides details on how to migrate an EZ-USB® FX2 based design to EZ-USB FX2LP based design. It highlights the differences between the EZ-USB FX2LP™ and EZ-USB FX2™. It also provides a brief description of the whole product support collateral available for development work with FX2LP.


The EZ-USB FX2LP (CY7C68013A) is a next-generation USB high-speed controller. EZ-USB FX2LP enhances the functionality of the EZ-USB FX2 (CY7C68013) while minimally effecting existing designs. This application note serves two purposes:

  1. Assist in migrating existing EZ-USB FX2 (also referred to as FX2 in this application note) applications to EZ-USB FX2LP (also referred to as FX2LP in this application note).
  2. Assist the designers familiar with FX2 in creating FX2LP based applications.

A summary of the main items to consider while replacing the FX2 in an existing application with an FX2LP part is provided. The changes are categorized into required essential changes for all FX2LP applications migrating from FX2 and other applications based changes that might be required in your application due to additional enhanced feature in FX2LP.