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ICS9248-90 - Frequency Generator & Integrated Buffers

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Datasheet Details

Part number ICS9248-90
Manufacturer Integrated Circuit Systems
File Size 281.53 KB
Description Frequency Generator & Integrated Buffers
Datasheet download datasheet ICS9248-90 Datasheet

General Description

The ICS9248-90 generates all clocks required for high speed RISC or CISC microprocessor systems such as Intel PentiumPro or Cyrix.

Eight different reference frequency multiplying factors are externally selectable with smooth frequency transitions.

Overview

Integrated Circuit Systems, Inc.

ICS9248-90 Frequency Generator & Integrated Buffers for.

Key Features

  • include two CPU, six PCI and thirteen SDRAM clocks. Two reference outputs are available equal to the crystal frequency. Plus the IOAPIC output powered by VDDL1. One 48 MHz for USB, and one 24 MHz clock for Super IO. Spread Spectrum built in at ±0.25% modulation to reduce the EMI. Serial programming I2C interface allows changing functions, stop clock programing and Frequency selection. Additionally, the device meets the Pentium power-up stabilization, which requires that CPU and PCI clocks be sta.

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