Overview

The W167B, a motherboard clock synthesizer, provides 2.5V CPU clock outputs for advanced CPU and a CPU-divide-by-2 reference frequency for Direct Rambus Clock Generator (such as Cypress W134) interface. Fixed output frequencies are provided for other system functions.

Features

• Maximized EMI Suppression using Cypress’s Spread Spectrum technology

• Three copies of CPU outputs selectable frequency

• Three copies of 3V66 selectable frequency output at 3.3V

• Ten copies of PCI clocks (selectable frequency), 3.3V

• One double strength 14.318-MHz reference output at 3.3V

• One copy of 48-MHz USB clock

• One copy of selectable 24-/48-MHz for SIO

• One copy of CPU-divide-by-2 output as reference input to Direct Rambus™ Clock Generator (Cypress W134)

• Three copies of IOAPIC

• Available in 48-pin SSOP (300 mils)