9DB433AFLFT

Overview

The Renesas Electronics 9DB433AFLFT is a clock buffer IC designed for PCI Express Gen3 applications. It features four outputs and operates within a supply voltage range of 3.135 V to 3.465 V. The device supports a maximum input frequency of 166 MHz and exhibits a maximum propagation delay of 0 ps. Packaged in an SSOP-28 form factor, it functions as a zero-delay or fanout buffer compatible with PCIe standards.

Feature Summary

• Four differential HCSL output pairs
• Zero Delay Buffer (ZDB) and Fanout mode support
• Phase jitter performance: <1ps rms for PCIe Gen3
• SSOP-28 surface mount package

Applications

• PCI Express Gen3 clock distribution
• Backward compatible PCIe Gen2/Gen1 systems
• Server and storage motherboard clocking

Procurement Notes

Verify the specific suffix 'FLFT' against the manufacturer's official datasheet to confirm packaging details such as reel size or tape width. Ensure the component meets RoHS3 compliance requirements for the target assembly process. Cross-reference the Mouser part number 972-9DB433AFLFT for accurate distributor-specific handling instructions.

Selection Notes

Select this component when a four-output buffer is required for PCIe Gen3 interfaces. The SSOP-28 package suits designs needing moderate pin counts with surface mount constraints. Verify that the system power supply strictly maintains the 3.135 V to 3.465 V range to ensure correct operation and signal integrity.

Part Context

This part belongs to the 9DB433 series of PCIe clock buffers. It serves as a downstream buffer driven by main clock generators like the 932S421. The 'FLFT' suffix typically denotes specific packaging variations within the standard 9DB433AFILF active product line.

Replacement Considerations

The 9DB433AGILFT is a functionally similar alternative offering TSSOP-28 packaging instead of SSOP-28. Both parts share the same core buffering capabilities and electrical specifications for PCIe applications.