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General Description

The ICS94211 is a single chip clock solution for desktop designs using the BX/Apollo Pro133/ALI 1631 style chipset. It provides all necessary clock signals for such a system.

Features:

? Programmable ouput frequency.

? Programmable ouput rise/fall time.

? Programmable PCICLK, PCICLK_F, SDRAM skew.

? Real time system reset output

? Spread spectrum for EMI control typically by 7dB to 8dB, with programmable spread percentage.

? Watchdog timer technology to reset system if over-clocking causes malfunction.

? Uses external 14.318MHz crystal.

? FS pins for frequency select

Output Features:

? 2 - CPUs @2.5V

? 1 - IOAPIC @ 2.5V

? 13 - SDRAM @ 3.3V

? 6 - PCI @3.3V,

? 1 - 48MHz, @3.3V

? 1 - 24MHz @ 3.3V

? 2 - REF @3.3V, 14.318MHz.

Recommended Application:

440BX/VIA Apollo Pro133/ ALI 1631 style chipset.