IMIXG571CTB

Clock Generators, PLLs, Frequency Synthesizers Overview

The IMIXG571CTB is a Spread Spectrum Clock Generator IC manufactured by Cypress Semiconductor Corp. It utilizes I2C frequency control and EMI reduction spread spectrum technology, specifically designed for Pentium processor applications. The device operates at a maximum frequency of 16MHz and features a 48-TSSOP package with dimensions of 0.240 inches (6.10mm) width. It supports up to 8 SDRAM clocks for two DIMMs, seven PCI synchronous clocks, and four CPU clocks capable of driving up to eight loads each. The component includes power management support and is RoHS compliant.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates I2C programmable frequency generation with built-in EMI reduction spread spectrum technology
• Provides dedicated clock outputs for CPU, SDRAM, and PCI bus architectures
• Supports multi-load drive capabilities for system clock distribution

Clock Generators, PLLs, Frequency Synthesizers Applications

• Pentium processor system designs
• Motherboard clock generation for CPU and chipset interfaces
• SDRAM memory subsystem clock synthesis for dual in-line modules
• PCI bus synchronous clock distribution networks

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific manufacturer documentation for the IMIXG571CTB to confirm current production status and lead times. Ensure compatibility with existing I2C control lines on the target motherboard design. Check for any updated pinout or electrical specifications that may differ from legacy datasheets due to manufacturing transitions or revisions.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing systems requiring precise clock synchronization for Pentium-class processors with integrated EMI mitigation. The choice depends on the need for multiple synchronized clock domains including CPU, SDRAM, and PCI without external jitter cleaners. Consider the 48-TSSOP package constraints and I2C interface requirements for configuration flexibility during system integration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the family of spread spectrum clock generators developed for high-performance computing platforms. It addresses electromagnetic interference concerns inherent in high-speed digital switching while maintaining strict timing relationships between processor cores, memory controllers, and peripheral buses. The integration reduces component count compared to discrete clock solution approaches.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify cross-references through official Cypress/Infineon replacement guides before substitution.