General Description

The ICS9248-110 is a main clock synthesizer chip for AMD-K7 based systems. This provides all clocks required for such a system when used with a Zero Delay Buffer Chip such as the ICS9179-06.

Features:

• Up to 150MHz frequency support

• Support power management: CPU, PCI, stop and Power down Mode from I2C programming.

• Spread spectrum for EMI control -0.5 down spread

• Uses external 14.318MHz crystal

• FS pins for frequency select

Output Features:

• 3 differential pair open drain CPU clocks (2.7V external pull-up; up to 150MHz achieviable through I2C)

• 2 - AGPCLK @ 3.3V

• 8 - PCI @3.3V, including 1 free running

• 1 - 48MHz @ 3.3V

• 1 - 24/48MHz @ 3.3V

• 2- REF @3.3V, 14.318MHz.