BCM84780AKFSBG

Overview

The BCM84780AKFSBG is an integrated circuit transceiver manufactured by Broadcom Limited. It functions as a 10GBE octal SFI-XFI PHY, providing physical layer connectivity for high-speed networking applications. The component supports eight independent channels, each capable of operating at 10 Gigabit Ethernet speeds. It utilizes the SFI and XFI interface standards to facilitate data transmission between the MAC layer and the optical or copper medium. The device is designed for robust interoperability within complex network infrastructures.

Feature Summary

• Supports 10 Gigabit Ethernet operation across eight independent channels
• Integrates SFI and XFI physical layer interfaces for direct connectivity
• Designed for broad interoperability with diverse networking infrastructure platforms

Applications

• High-performance switch fabric interconnects
• Server platform physical layer connectivity
• Networking infrastructure equipment requiring 10GbE ports

Procurement Notes

This component is officially classified as obsolete and is no longer manufactured by Broadcom Limited. Procurement sources may list it as non-cancelable or non-returnable due to its end-of-life status. Verify availability through authorized distributors carefully, as supply chains for discontinued parts are limited. Ensure that any sourced units match the exact part number suffix to confirm package and temperature grade specifications.

Selection Notes

Engineers selecting this component must account for its obsolete lifecycle status, which impacts long-term supply stability. The design should consider the specific requirements of 10GBE octal PHY implementations using SFI/XFI interfaces. Alternative solutions should be evaluated if future production runs are required, as replacement components may necessitate schematic and layout modifications to maintain compatibility with existing system architectures.

Part Context

The BCM84780AKFSBG belongs to Broadcom's portfolio of Ethernet interface controllers and transceivers. It is part of a family of devices aimed at supporting high-density networking applications. The specific model designation indicates an octal configuration, distinguishing it from single or dual-channel PHY variants within the same product line. This classification aligns with Broadcom's focus on scalable physical layer solutions for enterprise and data center environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-to-pin replacements are not explicitly listed. Designers should consult Broadcom's current product portfolios for modern equivalents that support similar 10GBE capabilities, though these will likely require hardware redesign.