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ICS9169C-271 - Frequency Generator

General Description

The ICS9169C-271 is a low-cost frequency generator designed specifically for Pentium based chip set systems.

The integrated buffer minimizes skew and provides all the clocks required.

A 14.318 MHz XTAL oscillator provides the reference clock to generate standard Pentium frequencies.

Key Features

  • Twelve selectable CPU clocks operate up to 83.3MHz Maximum CPU jitter of ± 200ps Six BUS clocks support sync or async bus operation ±250ps skew for all synchronous clock edges CPU clocks BUS clocks skew 1-4ns (CPU early) Integrated buffer outputs drive up to 30pF loads 3.0V - 3.7V supply range, CPU(1:12) outputs 2.5V(2.375-2.62V) VDD option 32-pin SOIC/SOJ package Logic inputs latched at Power-On.

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Datasheet Details

Part number ICS9169C-271
Manufacturer Integrated Circuit Systems
File Size 317.31 KB
Description Frequency Generator
Datasheet download datasheet ICS9169C-271 Datasheet

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www.DataSheet4U.com Integrated Circuit Systems, Inc. ICS9169C-271 Frequency Generator for Pentium™ Based Systems General Description The ICS9169C-271 is a low-cost frequency generator designed specifically for Pentium based chip set systems. The integrated buffer minimizes skew and provides all the clocks required. A 14.318 MHz XTAL oscillator provides the reference clock to generate standard Pentium frequencies. The CPU clock makes gradual frequency transitions without violating the PLL timing of internal microprocessor clock multipliers. A raised frequency setting of 68.5MHz is available for Turbo-mode of the 66.8MHz CPU. The ICS9169C-271 contains 12 CPU clocks, 4 PCI clocks, 1 REF at 48MHz and 1 at 24MHz.