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ICS9250-29 - Frequency Generator & Integrated Buffers

Datasheet Summary

Description

The ICS9250-29 is a single chip clock solution for Solano type chipset.

It provides all necessary clock signals for such a system.

Spread spectrum may be enabled through I2C programming.

Features

  • 2 CPU (2.5V) (up to 133MHz achievable through I2C).
  • 13 SDRAM (3.3V) (up to 133MHz achievable through I2C).
  • 5 PCI (3.3 V) @33.3MHz.
  • 1 IOAPIC (2.5V) @ 33.3 MHz.
  • 3 Hublink clocks (3.3 V) @ 66.6 MHz.
  • 2 (3.3V) @ 48 MHz (Non spread spectrum).
  • 1 REF (3.3V) @ 14.318 MHz Features:.
  • Supports spread spectrum modulation, 0 to -0.5% down spread.
  • I2C support for power management.
  • Efficient power management scheme thro.

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Datasheet preview – ICS9250-29

Datasheet Details

Part number ICS9250-29
Manufacturer Integrated Circuit Systems
File Size 220.19 KB
Description Frequency Generator & Integrated Buffers
Datasheet download datasheet ICS9250-29 Datasheet
Additional preview pages of the ICS9250-29 datasheet.

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Full PDF Text Transcription

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Integrated Circuit Systems, Inc. ICS9250-29 Frequency Generator & Integrated Buffers for Celeron & PII/III™ Recommended Application: Solano type chipset. Output Features: • 2 CPU (2.5V) (up to 133MHz achievable through I2C) • 13 SDRAM (3.3V) (up to 133MHz achievable through I2C) • 5 PCI (3.3 V) @33.3MHz • 1 IOAPIC (2.5V) @ 33.3 MHz • 3 Hublink clocks (3.3 V) @ 66.6 MHz • 2 (3.3V) @ 48 MHz (Non spread spectrum) • 1 REF (3.3V) @ 14.318 MHz Features: • Supports spread spectrum modulation, 0 to -0.5% down spread. • I2C support for power management • Efficient power management scheme through PD# • Uses external 14.138 MHz crystal • Alternate frequency selections available through I2C control.
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