ICS9250F-18 View Datasheet(PDF) - Integrated Circuit Systems

Part Name

Description

MFG CO.

ICS9250F-18

Frequency Generator & Integrated Buffers for Celeron & PII/III™

Integrated Circuit Systems 

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ICS9250-18

General Description

The ICS9250-18 is the single chip clock solution for Desktop/designs using BX, Appollo Pro 133 type of chip sets. 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 EMI qualification without resorting to board design iterations or costly shielding. The ICS9250-18

employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature

variations.

Serial programming I2C interface allows changing functions, stop clock programming and frequency selection.

Mode Pin - Power Management Input Control

MODE

(Latched Input)

0

1

Pin 3

PCI_STOP#

(Input)

REF0

(Output)

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