ICS9147-12 - Pentium/ProTM System Clock Chip

Integrated Circuit Systems

Datasheet Details

Part number	ICS9147-12
Manufacturer	Integrated Circuit Systems
File Size	497.17 KB
Description	Pentium/ProTM System Clock Chip
Datasheet	ICS9147-12 Datasheet

General Description

The ICS9147-12 is a Clock Synthesizer chip for Pentium and PentiumPro plus Cyrix CPU based Desktop/Notebook systems that will provide all necessary clock timing.

Overview

Integrated Circuit Systems, Inc.

ICS9147-12 Pentium/ProTM System and Cyrix Clock.

Key Features

include four CPU, seven PCI and eight SDRAM clocks. Three reference outputs are available equal to the crystal frequency, plus the IOAPIC output powered by VDDL. Additionally, the device meets the Pentium power-up stabilization, which requires that CPU and PCI clocks be stable within 2ms after power-up. High drive PCICLK and SDRAM outputs typically provide greater than 1V/ns slew rate into 30 pF loads. CPUCLK outputs typically provide better than 1V/ns slew rate into 20 pF loads while maintainin.

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