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W144

Part Number	W144
Manufacturer	Cypress Semiconductor
Description	440BX AGPset Spread Spectrum Frequency Synthesizer
Published	Apr 17, 2005
Detailed Description	PRELIMINARY W144 440BX AGPset Spread Spectrum Frequency Synthesizer Features • Maximized EMI suppression using Cypress...
Datasheet	W144 PDF File

Overview

PRELIMINARY W144 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 • Two copies of CPU output • Six copies of PCI output • One 48-MHz output for USB • One 24-MHz output for SIO • Two buffered reference outputs • One IOAPIC output • Thirteen SDRAM outputs provide support for 3 DIMMs • Supports frequencies up to 150 MHz • I2C™ interface for programming • Power management control inputs Table 1.
Mode Input Table Mode 0 1 PCI_STOP# REF0 Pin2 Table 2.
Pin Selectable Frequency FS3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 Input Address CPU_F, CPU1 FS2 FS1 FS0...

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