9LRS4103BKLFT

Overview

The 9LRS4103BKLFT is a clock generator from Renesas Electronics Corporation, designed for Intel CPU server applications. It features an integrated PLL and accepts a crystal input to generate a single clock output with a 1:6 ratio. The device supports a maximum frequency of 133.33MHz and operates on a supply voltage range of 3.135V to 3.465V. It utilizes differential signaling for outputs while maintaining a non-differential input. The component is housed in a 32-VFQFPN package (5x5 mm) with an exposed pad, suitable for surface mount installation within an operating temperature range of 0°C to 70°C.

Feature Summary

• Integrated PLL-based clock generation for Intel CPU servers
• Crystal input with 1:6 output ratio supporting up to 133.33MHz
• Differential output signaling with non-differential input configuration
• 32-VFQFPN (5x5 mm) surface-mount package with exposed pad

Applications

• Intel CPU Server main clock distribution
• High-performance computing system timing
• Server motherboard clock generation

Procurement Notes

Verify the specific ordering suffix BKLFT against official Renesas documentation to confirm package type and tape-and-reel packaging details. Ensure compatibility with the required 3.135V to 3.465V power supply rails during design integration. Confirm moisture sensitivity level and reflow soldering profiles align with assembly requirements for the 32-VFQFPN package.

Selection Notes

Select this component when a dedicated crystal-input clock generator with a 1:6 fan-out is required for Intel server architectures. The internal PLL eliminates the need for external oscillators, simplifying board layout. Verify that the 133.33MHz maximum frequency meets the target CPU clock requirements and that the differential output interface matches the downstream receiver specifications.

Part Context

This part belongs to the CK505 series of clock generators, optimized for high-speed server processors. It serves as a primary clock source, converting a low-frequency crystal reference into higher-frequency signals required by modern CPU cores. The design focuses on low jitter and stable performance in demanding server environments.

Replacement Considerations

Consult Renesas technical support for direct pin-to-pin replacements or functional equivalents within the CK505 family. Verify that any substitute maintains the 1:6 ratio, crystal input requirement, and differential output characteristics.