9FGU0231AKLFT

Overview

The 9FGU0231AKLFT is a PCI Express (PCIe) clock generator IC manufactured by Renesas Electronics. It features a single PLL circuit with one input and three outputs, operating at a maximum frequency of 100MHz. The device accepts LVDS or crystal inputs and provides LP-HCSL and LVCMOS outputs. It operates on a supply voltage ranging from 1.425V to 1.575V and supports an industrial temperature range of -40°C to 85°C. The component is housed in a 24-VFQFPN package with dimensions of 4x4mm.

Feature Summary

• Supports PCIe Gen1/Gen2/Gen3 standards for high-speed data transmission timing
• Integrates a Phase-Locked Loop (PLL) for precise clock generation
• Offers flexible output signaling options including LP-HCSL and LVCMOS
• Designed for low power consumption in compact surface-mount packages

Applications

• PCI Express peripheral cards and add-in boards
• Motherboard chipset clock distribution systems
• High-performance computing server backplanes
• Storage controller interfaces requiring stable reference clocks

Procurement Notes

Verify the specific suffix 'AKLFT' against official Renesas documentation to confirm package type, temperature grade, and lead-free status. Ensure compatibility with design-in requirements regarding input source selection and output load capabilities. Cross-reference part numbers carefully as minor suffix variations may indicate different packaging or environmental certifications.

Selection Notes

Select this component when designing PCIe interfaces requiring a single differential or crystal input to generate multiple low-power HCSL or CMOS clock signals. Consider the 24-pin VFQFPN package for space-constrained layouts. Evaluate the 1.5V supply requirement against system power rails. Confirm that the 100MHz maximum frequency meets the target PCIe generation speed requirements.

Part Context

This device belongs to the Renesas 9FGU series of PCIe clock generators. It is designed to replace legacy clock solutions with integrated PLL technology. The series targets applications needing jitter-optimized clocks for serial link transceivers. It complements other Renesas timing products like clock buffers and oscillators in complete system designs.

Replacement Considerations

Check for direct pin-to-pin replacements within the 9FGU series such as 9FGU0231AKILFT. Verify functional equivalence with older IDT PCIe clock generators if migrating from previous generations. Ensure substitute parts support the same output formats and supply voltage ranges.