W147G - Frequency Generator

Cypress Semiconductor

W147G Datasheet Preview — Preview of W147G PDF

Datasheet Details

Part number	W147G
Manufacturer	Cypress Semiconductor
File Size	140.74 KB
Description	Frequency Generator
Datasheet	W147G_CypressSemiconductor.pdf

W147G Product details

Description

W147G Reference Clock: 3.3V 14.318-MHz clock output.This pin doubles as the select strap for APIC clock frequency.If strapped LOW during power up, APIC clock runs at half PCI clock speed.Otherwise, APIC clocks run at PCI clock speed.Crystal Input: This pin has dual functions.It can be used as an external 14.318-MHz crystal connection as an external reference frequency input.Crystal Output: An input connection for an external 14.318-MHz crystal.If using an external reference, this pin mu

Features

Maximized EMI suppression using Cypress’s Spread Spectrum Technology.
Low jitter and tightly controlled clock skew.
Highly integrated device providing clocks required for CPU, core logic, and SDRAM.
Three copies of CPU clock at 66/100 MHz.
Nine copies of 100-MHz SDRAM clocks.
Eight copies of PCI clock.
Two copies of synchronous APIC clock.
Two copies of 48-MHz clock (non-spread spectrum) optimized for USB reference input an.

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Published: Apr 17, 2005 |