General Description
The ICS9248-199 is a single chip clock solution for desktop designs using the Intel Brookdale chipset with PC133 or DDR memory. It provides all necessary clock signals for such a system.
FEATUREs:
• Programmable output frequency.
• Programmable output divider ratios.
• Programmable output rise/fall time.
• Programmable output skew.
• Programmable spread percentage for EMI control.
• Watchdog timer technology to reset system if system malfunctions.
• Programmable watch dog safe frequency.
• Support I2C Index read/write and block read/write operations.
• Uses external 14.318MHz crystal.
Output Features:
• 1 - CPU @ 2.5V
• 1 - Differential pair open drain CPU clock
• 1 - IOAPIC @ 2.5V
• 1 - SDRAM @ 3.3V
• 6- PCI @3.3V
• 2 - AGP @ 3.3V
• 1- 48MHz, @3.3V fixed
• 1- 24/48MHz, @3.3V selectable by I2C (Default is 24MHz)
• 2- REF @3.3V, 14.318MHz