9LPR501SGLFT

Overview

The Renesas 9LPR501SGLFT is a dedicated clock and frequency synthesizer IC designed for Intel CK505 and PCI Express (PCIe) applications. It features a single circuit with a 1:22 input-to-output ratio, generating up to 22 differential clock outputs from a crystal input. The device operates within a supply voltage range of 3.135V to 3.465V and supports frequencies up to 400MHz. Packaged in a 64-TSSOP surface-mount case, it functions reliably across an operating temperature range of 0°C to 70°C.

Feature Summary

• Dedicated PCIe clock generation supporting Intel CK505 specifications
• Single PLL circuit providing 1:22 frequency multiplication ratio
• Supports differential output configurations for high-speed signaling
• Operates on a 3.3V nominal supply (3.135V–3.465V range)

Applications

• PCI Express (PCIe) system clock distribution
• Intel CK505 compliant motherboard designs
• High-performance server and workstation platforms

Procurement Notes

This component is identified as obsolete or end-of-life by the manufacturer. Verification of availability should focus on last-time buy status or existing distributor stock rather than active production orders. Ensure compatibility with legacy system requirements before procurement.

Selection Notes

Select this part for designs requiring a fixed-ratio PCIe clock generator compatible with Intel CK505 architectures. It is suitable for systems needing multiple differential clocks derived from a single crystal reference without programmable configuration options.

Part Context

The 9LPR501SGLFT belongs to the 9LPRS501 series of clock generators. It serves as a specialized timing solution for legacy PCIe implementations, distinct from programmable jitter cleaners or general-purpose oscillators found in newer platform generations.

Replacement Considerations

Due to the obsolete status, direct pin-compatible replacements may be limited. Evaluate newer PCIe clock generators from Renesas or competitors that support the required 1:22 ratio and differential output specifications for design refreshes.