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ICS9147-12

Part Number	ICS9147-12
Manufacturer	Integrated Circuit Systems
Description	Pentium/ProTM System Clock Chip
Published	Feb 6, 2006
Detailed Description	Integrated Circuit Systems, Inc. ICS9147-12 Pentium/ProTM System and Cyrix Clock Chip General Description The ICS9147...
Datasheet	ICS9147-12 PDF File

Overview

Integrated Circuit Systems, Inc.
ICS9147-12 Pentium/ProTM System and Cyrix Clock Chip 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.
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 maintaining 50 ± 5% duty cycle.
The REF clock outputs typically provide better than 0.
5V/ns slew rates.
The ICS9147-12 accepts a 14.
318MHz reference crystal or clock as its input and runs on a 3.
3V supply.
Features ...

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