9EX21501AKLF

Overview

The 9EX21501AKLF is a PCI Express (PCIe) fanout buffer, multiplexer, and zero-delay buffer manufactured by Renesas Electronics Corporation. It supports a maximum frequency of 400MHz with one output circuit. The device operates within a supply voltage range of 3.135V to 3.465V and functions at temperatures between 0°C and 70°C. It utilizes a 64-VFQFPN (9x9) package with an exposed pad for surface mount installation. The component features HCSL outputs and accepts spread spectrum input.

Feature Summary

• Supports PCIe Gen2 and QPI differential signaling applications
• Integrates hardware PLL mode control capabilities
• Provides multiple SMBus address configurations for system management

Applications

• Bensley platform implementations
• Caneland server architectures
• Glidewell computing systems

Procurement Notes

This component has reached end-of-life status and is officially obsolete. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors. Designers are advised to review the manufacturer's product change notification for discontinuation details and transition to recommended replacement parts to ensure long-term supply chain stability.

Selection Notes

Select this part for legacy designs requiring 400MHz PCIe distribution with zero-delay buffering. Verify compatibility with specific platform requirements such as Bensley or Caneland. Ensure the 64-pin VFQFPN footprint fits the PCB layout constraints. Confirm that the HCSL output swing meets downstream receiver specifications.

Part Context

Part of the Renesas 9EX series designed for high-performance clock distribution in enterprise and server environments. It combines fanout buffering with multiplexing functionality to manage clock signals efficiently. The series targets applications demanding low jitter and precise timing alignment for high-speed serial interfaces like PCIe.

Replacement Considerations

Consult Renesas official documentation for current recommended replacements due to the obsolete status of this specific part number.