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W150 - 440BX AGPset Spread Spectrum Frequency Synthesizer

Datasheet Summary

Description

CPU Outputs 1 and 2: Frequency is set by the FS0:3 inputs or through serial input O interface, see Tables 2 and 6.

These outputs are affected by the CLK_STOP# input.

Free-Running CPU Output: Frequency is set by the FS0:3 inputs or through serial O input interface, see Tables 2 and 6.

Features

  • Maximized EMI suppression using Cypress’s Spread Spectrum Technology.
  • Single chip system frequency synthesizer for Intel® 440BX AGPset.
  • Three copies of CPU output.
  • Seven copies of PCI output.
  • One 48-MHz output for USB / One 24-MHz for SIO.
  • Two buffered reference outputs.
  • Two IOAPIC outputs.
  • 17 SDRAM outputs provide support for 4 DIMMs.
  • Supports frequencies up to 150 MHz.
  • I2C™ interface for programming.

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Datasheet Details

Part number W150
Manufacturer Cypress Semiconductor
File Size 155.79 KB
Description 440BX AGPset Spread Spectrum Frequency Synthesizer
Datasheet download datasheet W150 Datasheet
Additional preview pages of the W150 datasheet.

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Full PDF Text Transcription

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PRELIMINARY W150 440BX AGPset Spread Spectrum Frequency Synthesizer Features • Maximized EMI suppression using Cypress’s Spread Spectrum Technology • Single chip system frequency synthesizer for Intel® 440BX AGPset • Three copies of CPU output • Seven copies of PCI output • One 48-MHz output for USB / One 24-MHz for SIO • Two buffered reference outputs • Two IOAPIC outputs • 17 SDRAM outputs provide support for 4 DIMMs • Supports frequencies up to 150 MHz • I2C™ interface for programming • Power management control inputs Table 1. Mode Input Table Mode 0 1 Table 2.
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