General Description

The ICS9248-99 is the single chip clock solution for Desktop designs using 810/810/E style chipset. It provides all necessary clock signals for such a system.

Features:

• Up to 200.4MHz frequency support

• Support FS0-FS3 trapping status bit for I2C read back.

• Support power management: Power down Mode form I2C programming.

• Spread spectrum for EMI control ( ± 0.25 center).

• FS0, FS1, FS2, FS3 must have a internal 120K pull-Down to GND.

• Uses external 14.318MHz crystal

Output Features:

• 2- CPUs @2.5V @ 150MHz (up to 200MHz. achievable through I2C)

• 9 - SDRAM @ 3.3V @ 150MHz (up to 200MHz. achievable through I2C)

• 8 - PCICLK @ 3.3V

• 1 - IOAPIC @ 2.5V,

• 2 - 3V66MHz @ 3.3V

• 2- 48MHz, @ 3.3V fixed.

• 1- 24/48MHz, @ 3.3V

• 1- REF @3.3V, 14.318MHz.

Recommended Application:

810/810E style chipset