General Description
The ICS9248-107 is a main clock synthesizer chip for Pentium II based systems using Rambus Interface DRAMs. This chip provides all the clocks required for such a system when used with a zero delay buffer such as the ICS9179-06.

FEATUREs:
• Up to 180MHz frequency support
• Use a zero delay buffer such as the ICS9179-06 to generate SDRAM clocks.
• Support power management: Power down Mode from I2C programming.
• Spread spectrum for EMI control ± 0.25% center spread).
• Uses external 14.318MHz crystal
• 5 - FS pins for frequency select

Output Features:
• 4 - CPUs @ 2.5V, up to 180MHz.
• 3 - IOAPIC @ 2.5V
• 3 - 3V66MHz @ 3.3V.
• 11 - PCIs @ 3.3V
• 1 - 48MHz, @ 3.3V fixed
• 1 - 24/48MHz, @ 3.3V