• Part: W199
  • Description: Spread Spectrum FTG for VIA Apollo Pro-133
  • Manufacturer: Cypress
  • Size: 154.43 KB
Download W199 Datasheet PDF
Cypress
W199
Features - Maximized EMI suppression using Cypress’s Spread Spectrum Technology - Single-chip system frequency synthesizer for VIA Apollo Pro-133 - 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 - 13 SDRAM outputs provide support for 3 DIMMs - Supports frequencies up to 150 MHz - I2C™ interface for programming - Power management control inputs - Available in 48-pin SSOP Table 1. Mode Input Table Mode 0 1 Table 2. Pin Selectable Frequency Input Address FS3 1 1 1 1 1 1 1 1 0 CPU Cycle-to-Cycle Jitter: 250 ps CPU to CPU Output Skew: 175 ps PCI to PCI Output Skew: 500 ps VDDQ3: 3.3V±5% VDDQ2: 2.5V±5% SDRAMIN to...