General Description

The ICS9248-127 is the single chip clock solution for Desktop designs using the VIA MVP4 and Aladdin 7 style chipset. It provides all necessary clock signals for such a system.

Features

• Up to 124MHz frequency support.

• Spread Spectrum for EMI control 0 to -0.5 down spread and ±0.25 center spread

• Serial I2C interface for Power Management, Frequency Select, Spread Spectrum.

• Provides the following system clocks

- 4-CPUs @ 3.3V, up to 124MHz.

- 13-SDRAMs @3.3V, up to 124MHz (including SDRAM_F)

- 6-PCI (including 1 free running, PCICLK_F) @3.3V, CPU/2 or CPU/3.

- 1-24MHz @3.3V fixed.

- 1-48MHz @3.3V fixed.

- 2-REF @3.3V, 14.318MHz.

• Efficient Power management scheme through PCI and STOP CLOCKS.