9DBU0231AKILF

Overview

The 9DBU0231AKILF is a zero-delay fanout buffer from Renesas Electronics, designed for PCI Express (PCIe) Gen1/2/3 applications. It operates with a supply voltage range of 1.425V to 1.575V and supports differential HCSL inputs converting to LP-HCSL outputs. The device features two outputs with a maximum frequency of 167MHz. It utilizes a 24-pin VFQFPN package (4x4mm) and functions within an operating temperature range of -40°C to +85°C. Key electrical characteristics include typical power consumption of 35mW in PLL mode and programmable slew rates.

Feature Summary

• Zero-delay buffer architecture supporting PCIe Gen1/2/3 standards
• Converts differential HCSL input to low-power HCSL (LP-HCSL) outputs
• Programmable output slew rate and amplitude for signal integrity tuning
• Integrated PLL with selectable bandwidth and bypass modes

Applications

• PCI Express clock distribution networks
• High-speed digital system timing synchronization
• Server and storage controller clock buffering

Procurement Notes

Verify the specific suffix 'AKILFT' against manufacturer documentation to confirm tape-and-reel packaging and RoHS compliance status. Confirm current manufacturing status as product lifecycle data may vary by region. Ensure compatibility with existing PCB footprints for the 24-VFQFPN package before procurement.

Selection Notes

Select this component when a zero-delay buffer is required for PCIe interfaces with low power constraints. The LP-HCSL output reduces board space by eliminating external termination resistors compared to standard HCSL. Verify that the input source provides a compatible HCSL signal and that the load requirements align with the device's drive capability.

Part Context

This part belongs to the IDT 1.5V Ultra-Low-Power (ULP) PCIe family, now under Renesas Electronics. It serves as a clock management solution for high-speed serial links, offering jitter minimization through its integrated PLL. The device is distinct from simple fanout buffers by its ability to lock phase to the input reference.

Replacement Considerations

Publicly confirmed substitute: 9DMV0131BKILF (Manufacturer Recommended). Note that the substitute has different pin counts and functionality; verify schematic compatibility carefully.