General Description
The ICS9248-169 is a single chip clock solution for Desktop designs. It provides all necessary clock signals for such a system.
Spread spectrum may be enabled through I2C programming.
Spread spectrum typically reduces system EMI by 8dB to 10dB. This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9248-169 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations.
Serial programming I2C interface allows changing functions, stop clock programming and frequency selection.

Output Features:
• 2 - CPUs @2.5V, up to 166MHz.
• 1 - IOAPIC @ 2.5V
• 13 - SDRAM @ 3.3V
• 6 - PCI @3.3V,
• 1 - 48MHz, @3.3V fixed.
• 1 - 24MHz @ 3.3V
• 2 - REF @3.3V, 14.318MHz.

FEATUREs:
• Up to 166MHz frequency support
• Support power management: PCI, CPU stop and Mode
• Spread spectrum for EMI control (± 0.50%).
• Uses external 14.318MHz crystal

Recommended Application:
   440BX/VIA Apollo 133/694X style chipset.