9DB401CGLFT

Overview

The Renesas Electronics 9DB401CGLFT is a PCI Express (PCIe) fanout buffer and zero-delay buffer integrated circuit. It features one input channel providing four output channels with a 1:4 ratio. The device supports differential HCSL inputs and outputs in both HCSL and LVDS formats. It operates at a maximum frequency of 400 MHz within a supply voltage range of 3.135 V to 3.465 V. Packaged in a 28-TSSOP housing, it includes an internal PLL for clock distribution applications.

Feature Summary

• PCIe Zero-Delay Buffer with 1:4 Input-to-Output Ratio
• Supports Differential HCSL Inputs and HCSL/LVDS Outputs
• Maximum Operating Frequency of 400 MHz
• Integrated Phase-Locked Loop (PLL)

Applications

• PCI Express Clock Distribution
• CPU Clock Fanout

Procurement Notes

Verify component status as the 9DB401CGLFT is listed as obsolete by the manufacturer. Confirm availability through authorized distributors or secondary markets. Check for specific End-of-Life (EOL) notices and recommended replacement parts from Renesas before procurement planning.

Selection Notes

Select this component for PCIe designs requiring a single source to drive four destinations. Ensure the design accommodates the 3.135 V to 3.465 V supply requirement. Verify that the 28-TSSOP package fits the PCB layout constraints. Consider the 0°C to 70°C commercial temperature range for environmental suitability.

Part Context

This part belongs to the 9DB401 family of clock buffers. It is functionally related to other variants like the 9DB403 series but differs in specific pinouts or electrical characteristics. It serves as a legacy solution for PCIe Gen1/Gen2 systems where zero-delay buffering is critical for signal integrity.

Replacement Considerations

Consult Renesas documentation for officially recommended replacements due to the EOL status. Cross-reference with current generation clock buffer families for pin-compatible or functional alternatives.