Question : Problem: Harddisk chip SH6770C Reference

I have a bad harddisk(Maxtor 4D040H2),and the chip SH6770C has been damage,and I need spec for this chip.So where can I find the reference for this chip?

Answer : Problem: Harddisk chip SH6770C Reference

It's for sale here refurbished for $3: http://softcom.freehosting.net/HDD_Motor_Combo_IC.htm

Brand new is $25: http://www.softcom.com.my/maxtor_hdd_logic_board.htm

Can you actually fix these things?