AV9248-127 - Frequency Generator & Integrated Buffers for PENTIUM/Pro™ - ICST 数据手册 ( 数据表 )

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.