CY2545I

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2545I is a quad PLL programmable spread spectrum clock generator manufactured by Cypress Semiconductor Corp. It features a serial I2C interface for configuration and supports precise clock generation with spread spectrum capabilities to reduce electromagnetic interference. The device operates within standard industrial temperature ranges and is designed for applications requiring multiple synchronized clock outputs with low jitter characteristics.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates four independent phase-locked loops for multi-clock generation
• Supports programmable spread spectrum modulation to minimize EMI
• Utilizes a serial I2C interface for flexible configuration and control

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed data communication systems
• Network infrastructure equipment
• Server and storage subsystems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix designation against official datasheets to confirm package type and temperature grade. Ensure compatibility with existing I2C bus protocols and voltage levels before integration. Cross-reference manufacturer part numbers to avoid confusion with similar family members.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple clock domains are required from a single source. Evaluate jitter performance and output frequency ranges against system requirements. Confirm that the I2C addressability fits within the system's addressing scheme without conflicts.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY2545 series of clock generators, which are widely used in digital systems requiring precise timing. It serves as a central timing solution for complex electronic designs where signal integrity and noise reduction are critical parameters.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Check for direct substitutes within the CY254x family or newer generations from Infineon Technologies, which acquired Cypress. Verify pinout compatibility and software register mapping if migrating to updated variants.