PEX9781-AA80BC G

Analog Switches - Special Purpose Overview

The PEX9781-AA80BC G is a PCI Express Gen 3 switch integrated circuit manufactured by Broadcom Limited. It belongs to the PEX9700 series and provides 81 lanes across five ports, supporting high-bandwidth data transfer for server and storage applications. The component is housed in a 35x35mm package and operates as a PCI interface IC. It complies with RoHS standards and is classified under Interface ICs. The device is currently marked as obsolete or discontinued by the manufacturer.

Analog Switches - Special Purpose Feature Summary

• Supports PCI Express Generation 3 protocol for enhanced data throughput
• Configured with five independent ports for flexible system integration
• Integrates 81 lanes to manage complex I/O connectivity requirements

Analog Switches - Special Purpose Applications

• Server infrastructure interconnects
• Storage area network (SAN) switches
• High-performance computing systems

Analog Switches - Special Purpose Procurement Notes

This component is officially listed as obsolete or discontinued by Broadcom Limited. Availability is restricted, and direct procurement from the manufacturer is not possible. Designers should verify end-of-life status through official channels before finalizing hardware architectures. Alternative sourcing may involve third-party distributors holding remaining stock, though supply continuity cannot be guaranteed.

Analog Switches - Special Purpose Selection Notes

Engineers replacing this part must account for its discontinued status. The PEX9700 series has been superseded by newer generations such as the PEX89000 series. Selection of a replacement requires careful evaluation of lane count, port configuration, and power consumption differences. Compatibility checks with existing PCB layouts and firmware are essential when migrating to newer Broadcom switching solutions.

Analog Switches - Special Purpose Part Context

The PEX9781 is part of the Broadcom PEX9700 family, which was designed for PCIe Gen 3 environments. This specific model offers a mid-range lane count within the series, balancing port density and pin count. It serves as a bridge between host processors and peripheral devices in enterprise-grade hardware platforms requiring reliable PCIe switching capabilities.

Analog Switches - Special Purpose Replacement Considerations

No direct substitute is confirmed in the provided documentation. The PEX89000 series represents the current generation of Broadcom PCIe switches but differs significantly in architecture and specifications. Engineers must evaluate functional equivalence rather than pin-to-pin compatibility when selecting alternatives.