566 MHz Hz is the frequency at which the CPU operates. To learn about the functions of the pins 370 please refer to their datasheets. Micro processor body consists of 370 pins. There are many applications that use the CPU with Through Hole mounted.
RB80526RX566128SL5L5 Features
RB80526RX566128SL5L5 Applications
There are a lot of Intel RB80526RX566128SL5L5 Microprocessor applications.