Is your caps lock stuck on. If it is, then start a thread
here to solve that problem before continuing with this one.
If not please do not type your post in 'ALL CAPS'. As it does not make anyone want to help you.
To answer your question; are you asking what integrated circuit your ball mouse has? If so for what reasons? If it is broken then it is probably better worth your while purchasing a
new or cheap second hand one [optical / laser].