The embedded microprocessor has been packed in BGA for convenient overseas shipping. 266MHz Hz is the frequency at which the CPU operates. There are many applications that use the CPU with Surface Mount mounted. 1.3V is the CPU core voltage.
IDT79RC32K438-266BBG Features
IDT79RC32K438-266BBG Applications
There are a lot of Integrated Device Technology (IDT) IDT79RC32K438-266BBG Microprocessor applications.