866 MHz is the CPU's frequency. Datasheets for 370 pin functions can be found here. A total of 370 pins are injected into the CPU microprocessor's body. This CPU is widely used in a variety of applications with its Through Hole mounting. It is possible to use the micro processor from 1.75 V.
RB80526PZ866256SL4ZJ Features
RB80526PZ866256SL4ZJ Applications
There are a lot of Intel RB80526PZ866256SL4ZJ Microprocessor applications.