W83195CG-NP

Application Specific Clock/Timing Overview

The W83195CG-NP is a CK410M compliant clock synthesizer designed for Intel Napa platform processors. It generates multiple clock frequencies from a 14.318 MHz crystal input, supporting CPU speeds up to 400 MHz and providing differential outputs for CPU, SRC, PCI-Express, and DOT signals. The device operates on a 3.3V supply within the 3.135V to 3.465V range and supports an operating temperature of 0°C to 70°C. It features I2C control for register configuration and spread spectrum modulation to reduce EMI.

Application Specific Clock/Timing Feature Summary

• Generates CPU (up to 400 MHz), PCI, PCI-Express, SRC, and 96 MHz DOT clocks
• Provides differential 0.7V current mode outputs for CPU, SRC, PCIEX, SATA, and DOT
• Includes -0.5% or programmable spread spectrum for EMI reduction
• Configurable via I2C serial interface with hardware frequency selection pins

Application Specific Clock/Timing Applications

• Intel P4 processor platforms
• Intel Napa platform motherboards
• High-speed microprocessor systems requiring synchronized clock generation

Application Specific Clock/Timing Procurement Notes

Verify the manufacturer designation in official documentation, as the datasheet identifies Winbond as the producer while the brand field lists Nuvoton Technology Corporation. Confirm the package type is 56-pin TSSOP and ensure the lead-free specification matches project requirements. Cross-reference the chip ID register value (11h) for authenticity.

Application Specific Clock/Timing Selection Notes

Select this component when designing for Intel Napa architecture requiring specific CPU and peripheral clock ratios. Ensure the system provides a stable 14.318 MHz reference crystal. Verify that the 3.3V power supply rails remain within the 3.135V to 3.465V operating window to maintain timing specifications.

Application Specific Clock/Timing Part Context

This device serves as a dedicated clock generator for legacy Intel desktop platforms. It replaces discrete oscillator solutions by integrating multiple clock domains into a single IC. The part is specifically optimized for the electrical characteristics required by Intel P4 processors and associated chipset components.

Application Specific Clock/Timing Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.