CY7C68300 / CY7C68300A - EZ-USB AT2 Must be Powered Before Attached Drive

Question: Should CY7C68300 / CY7C68300A - EZ-USB AT2  be Powered Before Attached Drive?

 

Answer:

The EZ-USB AT2 must be powered at the same time as, or before, the attached drive. If the attached drive is powered first, the AT2 will start up in an undefined state. This will only affect devices that utilize seperate power supplies for the AT2 and drive (i.e. hybrid device). Devices that use a single power supply for the AT2 and the drive are not affected.