BCM56771A0KFSBG

Overview

The Broadcom BCM56771A0KFSBG is a high-performance Ethernet switch integrated circuit designed for next-generation data center networks. It delivers a single-chip throughput of 12.8 Tbps and supports up to 32 ports of 400GbE connectivity. The device utilizes a 7nm low-power process technology and incorporates 56G PAM4 high-speed interfaces to facilitate efficient scaling toward 800G architectures. This configuration enables significant reductions in equipment count and total cost of ownership while maintaining industry-leading energy efficiency.

Feature Summary

• Supports flexible port configurations including 48x10GbE and 6x100GbE alongside higher speed options
• Integrates advanced programmability features such as P4 support for custom forwarding logic
• Provides hardware acceleration for network virtualization protocols like VXLAN and IPsec
• Includes deep buffer capabilities with dynamic allocation to manage traffic bursts effectively

Applications

• High-density top-of-rack (ToR) switches in large-scale cloud data centers
• Core and aggregation layer networking for AI and HPC clusters
• Carrier-grade 5G transport network infrastructure
• Enterprise campus backbone switching solutions

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required temperature ranges and package variants. Confirm RoHS compliance status and check for any recent product change notifications that may affect pinout or electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when designing systems requiring 12.8Tbps switching capacity with high port density. Ensure the host PCB design supports the necessary power delivery for 7nm operation and accommodates the complex thermal requirements associated with high-speed SerDes interfaces. Validate software stack compatibility with the intended network operating system.

Part Context

This part belongs to the Broadcom StrataXGS Tomahawk series, representing a generation of silicon optimized for modern hyperscale environments. It succeeds earlier generations by offering improved performance-per-watt ratios and enhanced programmability features essential for software-defined networking implementations in contemporary enterprise and service provider infrastructures.

Replacement Considerations

Direct functional substitutes within the same family include the BCM56770A0KFSBG. Verify pin-to-pin compatibility and software feature parity before substitution. Cross-family replacements require comprehensive architectural review due to differences in buffer sizes and interface counts.