9DB403DFLF

Overview

The Renesas Electronics Corporation 9DB403DFLF is a zero-delay buffer integrated circuit designed for PCI Express (PCIe) clock distribution. It accepts a single HCSL input and provides four differential outputs in HCSL or LVDS formats. The device operates within a supply voltage range of 3.135 V to 3.465 V and supports maximum input frequencies up to 400 MHz. Packaged in a 28-SSOP housing, it functions within an operating temperature range of 0°C to 70°C with a typical operating current of 115 mA.

Feature Summary

• Zero-delay buffering architecture for PCIe Gen1/Gen2 applications
• Four differential output channels supporting HCSL and LVDS logic levels
• Maximum input frequency capability of 400 MHz
• Single HCSL input interface

Applications

• PCI Express clock fan-out and distribution
• System board clock buffering
• High-speed digital signal timing alignment

Procurement Notes

Verify the package type against project requirements, as datasheets may list both SSOP and TSSOP variants under the same base model number. Confirm RoHS compliance status via the manufacturer's official documentation before finalizing procurement specifications.

Selection Notes

Select this component when a single-ended HCSL source must drive multiple differential loads with minimal skew. Ensure the design environment stays within the specified 0°C to 70°C commercial temperature range and that the power supply remains stable between 3.135 V and 3.465 V.

Part Context

This part belongs to the 9DB403 series of clock buffers from Renesas. It serves as a specific variant optimized for surface-mount assembly in standard industrial packages, distinct from tape-and-reel versions like the 9DB403DGLFT.

Replacement Considerations

The 9DB403DGILF is a verified alternative offering an extended -40°C to +85°C industrial temperature range while maintaining identical electrical performance and pinout compatibility.