PEX9781-AARDK

Description：IC PCI EXPRESS SWITCH
Series：*

SKU:48dd1a9cd26c Category: Analog Switches - Special Purpose Brand: Broadcom Limited

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Product introduction

PEX9781-AARDK is listed in the Analog Switches - Special Purpose range at ChipApex. The manufacturer field lists Broadcom Limited. Its product description is IC PCI EXPRESS SWITCH. Review the specifications below when checking this part for your BOM.

Analog Switches - Special Purpose specifications for PEX9781-AARDK

Description：IC PCI EXPRESS SWITCH
Series：*
Mfr：Broadcom Limited
Package：Bulk
Applications：-
Multiplexer/Demultiplexer Circuit：-
Switch Circuit：-
Number of Channels：-
On-State Resistance (Max)：-
Voltage - Supply, Single (V+)：-
Voltage - Supply, Dual (V±)：-
-3db Bandwidth：-
Features：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

Analog Switches - Special Purpose datasheet and documents for PEX9781-AARDK

PEX9781-AARDK

Analog Switches - Special Purpose Overview

The PEX9781-AARDK is a Rapid Development Kit (RDK) for the Broadcom PEX9781 switch, an 81-lane, 21-port PCI Express Gen3 device. It utilizes ExpressFabric technology to enable high-performance, low-latency switching with cut-through latency under 150ns and aggregate bandwidth of 1280GT. The kit includes hardware and software tools such as performancePAK and visionPAK for system configuration and debugging.

Analog Switches - Special Purpose Feature Summary

Enables I/O sharing via SR-IOV and supports host-to-host communication using General Purpose DMA or Tunneled Window Connection (TWC).
Provides flexible fabric topologies including mesh and multi-host architectures with any port configurable as upstream or downstream.
Includes integrated management CPU (mCPU) for routing table configuration, error handling, and Hot-Plug event management.

Analog Switches - Special Purpose Applications

High-Performance Computing (HPC) clusters requiring low-latency interconnects.
Hyperscale data center servers and storage systems.
NVMe and rack-scale systems demanding high availability.

Analog Switches - Special Purpose Procurement Notes

Verify that the specific order corresponds to the RDK part number PEX9781-AARDK rather than the standalone silicon component. Confirm compatibility with the intended development environment and ensure all necessary documentation for the included SDK and GUI interfaces is accessible from the manufacturer.

Analog Switches - Special Purpose Selection Notes

Select this kit for prototyping and validating PCIe Gen3 fabrics utilizing the PEX9781 architecture. It is suitable for designs requiring up to 81 lanes and 21 ports. Evaluate the need for the included debug instruments and performance features against standard silicon-only procurement options.

Analog Switches - Special Purpose Part Context

This kit belongs to the PEX9700 series, which implements ExpressFabric technology for converged server and IO controller applications. The series supports standards compliant with PCI Express Base Specification r3.1 and offers non-blocking line speed performance across all ports.

Analog Switches - Special Purpose Replacement Considerations

Direct replacement kits are available for other members of the PEX9700 family, specifically PEX9797-AARDK, PEX9765-AARDK, PEX9749-AARDK, PEX9733-AARDK, PEX9716-AARDK, and PEX9712-AARDK.

Analog Switches - Special Purpose FAQ

What is the primary function of the PEX9781-AARDK?

It serves as a Rapid Development Kit containing hardware and software tools to facilitate the design and debugging of systems based on the PEX9781 81-lane PCIe switch.

Does the kit support SR-IOV?

Yes, the underlying PEX9781 switch supports Virtual Functions (VFs) of SR-IOV endpoints, allowing multiple hosts to share and assign functions concurrently.