ICS9248-81 Datasheet (Renesas) - Frequency Generator & Integrated Buffer

ICS9248-81, Frequency Generator & Integrated Buffer

The ICS9248-81 is the single chip clock solution for Desktop/ Notebook designs using the SIS style chipset.

It provides all necessary clock signals for such a system.

Spread spectrum may be enabled through I2C programming.

Spread spectrum typically reduces system EMI by 8dB to 10dB.

This simplifies

ICS9248-81 Features

* Generates the following system clocks: - 3 CPU(2.5V/3.3V) up to 133.3MHz. - 6 PCI(3.3V) (including 1 free-running) - 13 SDRAMs(3.3V) up to 133.3MHz. - 3 REF (3.3V) @ 14.318MHz - 1 clock @ 24/14.3 MHz selectable output for SIO - 1 Fixed clock at 48MHz (3.3V) - 1 IOAPIC @ 2.5V / 3.3V Skew characte