PEX9733-AA80BI G

Analog Switches - Special Purpose Overview

The PEX9733-AA80BI G is a managed PCI Express switch from the Broadcom PEX9700 series, designed for high-performance data center fabrics. It features 33 lanes and 9 ports with integrated on-chip SerDes supporting PCIe Gen 3 speeds up to 8.0 GT/s per lane. The device provides an aggregate bandwidth of 512GT (full-duplex) and supports cut-through packet latency of less than 150ns. It utilizes a 27x27 mm² package and includes a dedicated management port for an off-chip CPU.

Analog Switches - Special Purpose Feature Summary

• Supports SR-IOV endpoint sharing and general-purpose host-to-host DMA via virtual Ethernet NICs
• Enables low-latency Tunneled Window Connection (TWC) for short message exchanges between hosts
• Features Downstream Port Containment (DPC/eDPC) for robust error recovery and link isolation
• Offers flexible fabric topologies including mesh configurations and I/O expansion boxes

Analog Switches - Special Purpose Applications

• High-Performance Computing (HPC) clusters requiring low latency and high bandwidth
• Hyper-converged infrastructure systems demanding cost-effective scalability
• NVMe storage networks and rack-scale computing environments

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity through authorized channels as this part number may be subject to discontinuation or limited availability. Confirm that the specific ordering suffix matches the required package and temperature specifications. Review the latest Product Change Notifications (PCN) for any manufacturing updates. Ensure compliance with RoHS directives and export control classifications before procurement.

Analog Switches - Special Purpose Selection Notes

Select this model when a balance of moderate port count and high switching performance is required for PCIe Gen 3 fabrics. It is suitable for designs needing up to 9 independent ports with full line-rate throughput. Consider the dedicated management port requirement for system integration. Evaluate thermal constraints given the typical power modes listed in the datasheet.

Analog Switches - Special Purpose Part Context

This component belongs to the PEX9700 series of ExpressFabric switches, which are engineered for scalable and high-availability server interconnects. The series spans various lane counts from 12 to 97, allowing designers to choose the appropriate density for their specific topology requirements while maintaining software compatibility across the family.

Analog Switches - Special Purpose Replacement Considerations

Direct substitutes within the same series include PEX9749-AA80BC G and PEX9716-AA80BC G, depending on whether higher or lower lane counts are acceptable. Verify pinout and package compatibility before substitution.