9DBL411BGLFT

Overview

The 9DBL411BGLFT is a four-output lower power differential buffer manufactured by Renesas Electronics Corporation. Designed for Intel QPI and PCI Express (PCIe) applications, it accepts HCSL differential input signals and generates LP-HCSL differential outputs. The device operates within a supply voltage range of 3V to 3.6V and supports maximum frequencies up to 150MHz. It features independent output enable pins for each channel and does not include an internal PLL. The component is housed in a 20-TSSOP package with dimensions of 6.5 x 4.4 x 1.0 mm and is rated for operation between 0°C and 70°C.

Feature Summary

• Four differential outputs with independent OE# pins
• HCSL input to LP-HCSL output conversion
• Maximum operating frequency of 150MHz
• 3.3V nominal supply voltage (3V - 3.6V range)

Applications

• Intel QuickPath Interconnect (QPI)
• PCI Express (PCIe) fanout buffering

Procurement Notes

Verify the specific suffix 'BGLFT' corresponds to the 20-TSSOP package variant when sourcing. Confirm RoHS3 compliance status as indicated in manufacturer documentation. Check for any Product Change Notifications (PCN) regarding assembly sites or labeling changes prior to procurement to ensure supply chain consistency.

Selection Notes

Select this component for designs requiring low-power PCIe clock distribution with HCSL compatibility. Ensure the PCB layout accommodates the 20-TSSOP footprint (0.65mm pitch). Verify that the system power supply remains within the 3V to 3.6V range to maintain specified electrical characteristics and timing performance.

Part Context

This part belongs to the 9DBL411 family of clock buffers. The 'B' suffix typically denotes the TSSOP package option, distinguishing it from other variants like the 'K' series which uses a VFQFN package. All variants share the same core functionality but differ in physical form factor and pin-out geometry.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited. The 9DBL411BKLFT serves as a functional equivalent but utilizes a 20-VFQFN package, requiring PCB redesign. No other direct substitutes are confirmed in public documentation.