9EX21501AKILFT

Overview

The 9EX21501AKILFT is a PCI Express clock distribution buffer manufactured by Renesas Electronics Corporation. It operates with a maximum frequency of 167 MHz and features a single circuit configuration. The device accepts a clock input and provides an HCSL output signal. It is designed for surface mount installation within a 64-VFQFPN package featuring a bare pad, specifically sized as 64-VFQFPN(9x9). The component supports differential signaling for both input and output paths. It functions within a supply voltage range of 3.135V to 3.465V and maintains an operating temperature range from 0°C to 70°C. The part includes an integrated Phase-Locked Loop (PLL) and is classified under application-specific clock/timing integrated circuits.

Feature Summary

• Provides dedicated clock distribution capabilities optimized for PCI Express applications
• Integrates a Phase-Locked Loop for precise timing signal generation
• Supports differential input and output signaling configurations

Applications

• PCI Express system clock distribution
• High-speed digital interface timing
• Server and storage controller boards

Procurement Notes

Verify the specific suffix and packaging type against current manufacturer documentation, as availability may vary. Confirm that the intended application environment falls within the specified commercial temperature range of 0°C to 70°C. Ensure the power supply rails strictly adhere to the 3.135V to 3.465V requirement to maintain signal integrity and operational reliability. Cross-reference the package dimensions with the PCB footprint design to ensure mechanical compatibility.

Selection Notes

Select this component when a low-jitter, high-frequency clock source is required for PCI Express interfaces. The integrated PLL allows for flexible frequency synthesis without external oscillators in some configurations. Consider the 64-pin VFQFPN package for dense board layouts requiring multiple outputs or robust thermal performance. Verify that the HCSL output drive strength matches the impedance requirements of the downstream loads.

Part Context

This device belongs to the Renesas family of specialized clock and timing integrated circuits designed for high-performance computing platforms. These components are engineered to meet the stringent jitter and skew requirements of modern serial link standards. The product line emphasizes low power consumption and small form factors to support compact system designs.

Replacement Considerations

Consult official Renesas documentation for verified cross-reference part numbers. Ensure any substitute component matches the pinout, electrical specifications, and package dimensions exactly.