9DBL411AKLF-INT

Overview

The 9DBL411AKLF is a single-circuit, four-output differential fanout buffer manufactured by Renesas Electronics Corporation. Designed for CPU and PCI Express applications, it accepts an HCSL input signal and provides LP-HCSL outputs. The device operates at a maximum frequency of 400MHz with a supply voltage range of 3.135V to 3.465V. It is housed in a 20-VFQFN package with exposed pad and supports operation within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Four differential outputs with individual Output Enable (OE#) pins
• Maximum operating frequency of 400MHz
• HCSL input to LP-HCSL output conversion
• Single circuit configuration in a 20-VFQFN package

Applications

• PCI Express clock distribution
• CPU clock fanout buffering

Procurement Notes

The 9DBL411AKLF is listed as End-of-Life (EOL) by the manufacturer. Verification of current stock availability through authorized distributors is required. Buyers should confirm the specific suffix 'INT' against official datasheets, as standard listings typically use 'KLF'.

Selection Notes

Select this component for high-frequency PCIe Gen1-3 clock distribution where low power consumption is critical. Ensure the design accommodates the 3.3V nominal supply voltage and the 20-VFQFN thermal requirements. Verify compatibility with HCSL source drivers.

Part Context

This part belongs to the 9DBL411 family of low-power differential buffers. Related variants include the 9DBL411BKLFT, which supports up to 150MHz and Intel QPI applications, offering a lower frequency alternative within the same package footprint.

Replacement Considerations

The 9DBL411BKLF is identified as a manufacturer-recommended substitute. This alternative supports up to 150MHz and is suitable for Intel QPI and PCIe applications, though it does not match the 400MHz capability of the AKLF variant.