9EPRS525AGLFT

Overview

The 9EPRS525AGLFT is a clock synthesizer IC compliant with the Intel CK505 Yellow Cover specification, designed for embedded systems and desktop chipsets. It operates from a single 14.318MHz crystal input to generate multiple differential and single-ended outputs. The device provides up to 400MHz CPU clocks with cycle-cycle jitter under 85ps. Key electrical parameters include a supply voltage range of 3.135V to 3.465V and an operating temperature range of 0°C to 70°C. It features spread spectrum modulation support and meets PCIe Gen2 requirements when sourced from PLL3.

Feature Summary

• Compliant with Intel CK505 Yellow Cover specification for desktop chipset applications
• Generates 2 CPU differential pairs, 7 SRC differential pairs, and additional selectable outputs
• Supports spread spectrum modulation with 0 to -0.5% down spread capability
• Delivers tight ppm accuracy for Serial ATA and PCI-Express support

Applications

• Intel desktop chipset clock generation
• Embedded systems requiring CK505 compatibility
• PCI Express (PCIe) Gen2 interface timing
• Serial ATA controller synchronization

Procurement Notes

The 9EPRS525AGLFT is listed as obsolete by Renesas Electronics Corporation. Availability is limited to existing stock or last-time buys. Verify end-of-life status and final shipment dates through authorized distributors before design-in. No new production is expected after inventory depletion.

Selection Notes

Select this component only if CK505 Yellow Cover compliance is mandatory for the target Intel chipset. Ensure the design accommodates external crystal load caps for frequency tuning. Verify that the 56-pin TSSOP package fits the PCB layout constraints. Consider alternative synthesizers if newer Intel platforms require different clock architectures.

Part Context

This part belongs to the 9EPRS525 family of clock generators. The 'AG' suffix indicates lead-free composition, while 'LFT' denotes tape and reel packaging. It serves as a derivative of the CK505 reference design, tailored for specific embedded system implementations requiring precise multi-output clock distribution.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Designers should consult Renesas for current portfolio alternatives compatible with Intel desktop chipsets.