W196 - Spread Spectrum FTG for 440BX and VIA Apollo Pro-133

Product Overview

Cypress Semiconductor

Datasheet Details

Part number	W196
Manufacturer	Cypress Semiconductor
File Size	138.51 KB
Description	Spread Spectrum FTG for 440BX and VIA Apollo Pro-133
Datasheet	W196 Datasheet
Additional preview pages of the W196 datasheet.

Product details

Description

W196 CPU Clock Outputs 0 through 1: These two CPU clocks run at a frequency set by FS0:1 or the serial data interface.See Table 1 and Table 5. Output voltage swing is set by the voltage applied to VDDQ2. PCI Bus Clock Outputs 1 through 6 and PCI_F: These seven PCI clock outputs run synchronously to the CPU clock.Voltage swing is set by the power connection to VDDQ3. I/O APIC Clock Output: Provides 14.318-MHz fixed frequency.The output voltage swing is set by the power connection to VDDQ2. 4

Features

Maximized EMI suppression using Cypress’s Spread Spectrum Technology.
System frequency synthesizer for 440BX, 440ZX, and VIA Apollo Pro-133.
I2C programmable to 155 MHz (32 selectable frequencies).
Two skew-controlled copies of CPU output.
Seven copies of PCI output (synchronous w/CPU output).
One copy of 14.31818-MHz IOAPIC output.
One copy of 48-MHz USB output.
Selectable 24-/48-MHz clock is determined by resistor straps.

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Other Datasheets by Cypress Semiconductor

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Published: Apr 17, 2005 |