9LPRS501SGLFT

Overview

The Renesas 9LPRS501SGLFT is a PCI Express (PCIe) clock and frequency synthesizer IC designed for Intel CK505 platforms. It features a single circuit with a 1:22 input-to-output ratio, generating up to 22 differential clock outputs from one crystal input. The device operates within a supply voltage range of 3.135V to 3.465V and supports maximum frequencies of 400MHz. Packaged in a 64-TSSOP surface-mount case, it functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Generates 22 differential PCIe clock outputs from a single crystal input
• Designed specifically for Intel CK505 chipset architectures
• Supports maximum output frequency of 400MHz
• Operates on a 3.3V nominal supply (3.135V–3.465V)

Applications

• Intel CK505 based motherboard designs
• PCI Express compliant system boards
• Server and workstation platform clock distribution

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verification of availability should focus on Last Time Buy status or existing distributor stock rather than active production channels. Confirm RoHS3 compliance and moisture sensitivity level 1 requirements during sourcing.

Selection Notes

Select this part only for legacy Intel CK505 designs requiring a 1:22 clock fan-out. Ensure the design accommodates the 64-TSSOP package dimensions and 3.3V power domain. Verify that the 0°C to 70°C commercial temperature range meets the target application's environmental specifications.

Part Context

The 9LPRS501SGLFT belongs to the 9LPRS501 series of PCIe clock generators. It serves as a specialized timing solution for older generation Intel chipsets, replacing discrete oscillator and buffer combinations to reduce board space and simplify layout for high-speed serial interfaces.

Replacement Considerations

As the part is obsolete, verify if newer Renesas PCIe clock generators support backward compatibility with CK505 pinouts and electrical parameters before substitution.