ICS954129BF

Overview

The ICS954129BF is a clock frequency synthesizer IC designed for Intel CPU and PCI Express (PCIe) applications. Manufactured by Renesas Electronics Corporation, this device operates with a single circuit and supports a maximum output frequency of 400MHz. It functions without an internal Phase-Locked Loop (PLL). The component is powered by a 3.3V supply voltage and is rated for an operating temperature range of 0°C to 70°C. It utilizes a surface-mount installation type within a 56-BSSOP package, specifically the 56-SSOP supplier device package with a width of 7.50mm.

Feature Summary

• Designed for Intel CPU and PCI Express (PCIe) timing control hub applications
• Maximum output frequency capability of 400MHz
• Operates on a 3.3V power supply voltage
• Available in a 56-SSOP surface-mount package

Applications

• Intel CPU clock generation
• PCI Express (PCIe) system timing
• Timing Control Hub implementations

Procurement Notes

Verify the specific suffix 'BF' against official Renesas documentation to confirm exact pinout, material composition, or environmental compliance status. Ensure the 56-SSOP package dimensions match the design constraints. Confirm availability status as older timing controllers may have limited stock or end-of-life implications.

Selection Notes

Select this component when a dedicated 400MHz clock source for Intel-based architectures is required. The absence of an internal PLL distinguishes it from programmable synthesizers; verify if external loop filtering is necessary based on the system reference input. Ensure the 3.3V logic level compatibility matches the target motherboard or chipset requirements.

Part Context

This part belongs to the Timing Control Hub family intended for desktop designs using Intel chipsets. It serves as a specialized solution for generating precise clock signals required by P4 processors and associated PCIe interfaces, replacing discrete oscillator solutions with a single integrated chip.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas technical support for direct replacements or cross-reference with other ICS954xxx series devices that share the same package and electrical specifications.