PC MAIN CLOCK The ICS94228 is a main clock synthesizer chip for AMD-K7 based systems with VIA style chipset. This provides all clocks required for such a system.
Output Features:
1 - Differential pair open drain CPU clocks @ 2.7V
1 - Differential pair push-pull CPU clocks @ 2.5V
11 - PCI including 1 free running and 1 early @ 3.3V