CY28346ZI-2

Application Specific Clock/Timing Overview

The CY28346ZI-2 is a processor-specific clock generator designed for Intel CPU server applications. Manufactured by Cypress Semiconductor Corp, this device integrates a Phase-Locked Loop (PLL) to generate precise timing signals from a crystal input. It provides one circuit with a 1:21 input-to-output frequency ratio, supporting output frequencies up to 200MHz. The component delivers HCSL and LVCMOS outputs in a 56-TSSOP II package. It operates on a supply voltage of 3.135V to 3.465V within an ambient temperature range of 0°C to 85°C.

Application Specific Clock/Timing Feature Summary

• Integrates PLL for stable clock generation from crystal input
• Supports 1:21 frequency ratio with maximum output of 200MHz
• Provides HCSL and LVCMOS output formats
• Optimized for Intel CPU server architectures

Application Specific Clock/Timing Applications

• Intel CPU server systems
• Processor-specific clock distribution networks
• High-frequency digital timing circuits

Application Specific Clock/Timing Procurement Notes

Verify the specific suffix ZI against official Cypress documentation to confirm package dimensions and tape-and-reel specifications. Ensure the operating environment remains within the 0°C to 85°C thermal limit. Confirm that the 3.135V–3.465V power supply rails are stable to maintain signal integrity for HCSL and LVCMOS outputs.

Application Specific Clock/Timing Selection Notes

Select this component when designing for Intel CPU servers requiring a single-clock source with multiple differential or single-ended outputs. The 1:21 ratio suits scenarios where a lower reference frequency drives higher-speed processor buses. Verify compatibility between the crystal input requirements and the internal PLL loop filter settings.

Application Specific Clock/Timing Part Context

This part belongs to the Cypress processor-specific clock generator family, distinct from general-purpose oscillators. It targets high-performance computing environments where jitter performance and output drive strength are critical for system stability.

Application Specific Clock/Timing Replacement Considerations

Cross-reference with other Cypress clock generators offering similar 1:21 ratios and HCSL/LVCMOS outputs. Verify pinout compatibility and electrical parameters such as supply voltage and output swing before substitution.