9DB401BGLFT

Overview

The Renesas Electronics 9DB401BGLFT is a zero-delay buffer clock driver designed for PCI Express applications. It features one HCSL differential input and four true LVDS outputs, providing a 1:4 fan-out ratio. The device operates within a supply voltage range of 3.135 V to 3.465 V and supports maximum frequencies up to 400 MHz. Packaged in a 28-TSSOP housing, it functions reliably between 0°C and +70°C with a typical operating current of 115 mA.

Feature Summary

• Zero-delay buffering architecture for low-jitter signal distribution
• Single HCSL differential input driving four LVDS outputs
• Supports PCIe Gen1 and Gen2 data rates up to 400 MHz
• Operates on a single 3.3V nominal power supply (3.135V–3.465V)

Applications

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

Procurement Notes

Verify the specific suffix 'B' against the manufacturer's latest documentation to confirm pinout compatibility and electrical specifications. Cross-reference the part number with official Renesas databases to ensure the component matches the required RoHS compliance status and package dimensions before finalizing procurement orders.

Selection Notes

Select this component when a single-ended or HCSL source must drive multiple LVDS loads with minimal skew. Ensure the design requires a 1:4 split ratio and operates within the 3.3V domain. Verify that the thermal requirements of the TSSOP-28 package align with the system's cooling capabilities for continuous operation at maximum frequency.

Part Context

This device belongs to the 9DB series of clock buffers from Renesas, formerly IDT. It serves as a critical timing element in high-speed serial interfaces, replacing older discrete logic solutions to reduce board space and improve signal integrity in complex electronic systems requiring precise clock alignment.

Replacement Considerations

The ICS9DB401BGLFT is an alias for this component. Check for newer revisions in the 9DB401 family if long-term availability is a concern, ensuring any substitute maintains the same 1:4 LVDS output configuration and HCSL input compatibility.