9DB401CFLF

Overview

The Renesas Electronics Corporation 9DB401CFLF is a PCI Express (PCIe) fanout buffer and zero-delay buffer integrated circuit. It features a single PLL-based circuit with one HCSL differential input and four HCSL/LVDS differential outputs, providing a 1:4 distribution ratio. The device operates at frequencies up to 400MHz within a supply voltage range of 3.135V to 3.465V. Packaged in a 28-pin SSOP (0.209 inch / 5.30mm wide), it supports PCIe applications with an operating temperature range of 0°C to 70°C.

Feature Summary

• PCIe Zero-Delay Buffer: Utilizes a Phase-Locked Loop (PLL) architecture for low-jitter clock distribution.
• Signal Conversion: Accepts HCSL differential inputs and provides HCSL or LVDS differential outputs.
• High Frequency Operation: Supports clock frequencies up to 400MHz.
• Standard Packaging: Available in a 28-SSOP surface-mount package.

Applications

• PCI Express (PCIe) clock distribution networks
• Server and storage system timing solutions
• High-speed digital interface buffering

Procurement Notes

Verify the specific suffix 'C' against official documentation, as standard listings often reference the 'G' variant (9DB401CGLFT). Confirm RoHS compliance status and check for End-of-Life (EOL) notices, as related devices in this family have been subject to discontinuation announcements by Renesas. Ensure the package width matches the 28-SSOP specification during sourcing.

Selection Notes

Select this component when a 1:4 PCIe clock fanout with zero-delay buffering is required. Compare against the 9DB403 series if different pinouts or output configurations are needed. Verify that the 0°C to 70°C commercial temperature range meets the system requirements, as industrial variants may exist under different part numbers.

Part Context

This component belongs to the Renesas 9DB401 family of PCIe timing solutions. It is functionally similar to the ICS9DB401 series produced by Integrated Circuit Systems (now Renesas). The 'C' suffix typically denotes specific packaging or environmental grades compared to the 'G' suffix variants commonly found in distributor catalogs.

Replacement Considerations

The 9DB401CGLFT is a verified equivalent with identical electrical specifications but a Tape & Reel package instead of Tube. The 9DB403DFLF offers similar functionality in a 28-SSOP package but may require schematic review due to potential pinout differences between the 9DB401 and 9DB403 families.