BCM56338B1KFSBLG

Overview

The Broadcom BCM56338B1KFSBLG is a high-performance Ethernet switch chip designed for data center and enterprise core routing applications. It belongs to the Trident II family, supporting line-rate switching with low latency. The device features a scalable architecture capable of handling high port densities and large buffers to prevent packet loss during congestion. It supports advanced Quality of Service (QoS) mechanisms, including traffic shaping and scheduling, ensuring deterministic performance for critical workloads. The component integrates hardware-based security features and comprehensive monitoring capabilities for network visibility and management.

Feature Summary

• Supports non-blocking switching fabric with wire-speed performance across all ports
• Integrates deep on-chip memory buffers to absorb burst traffic and minimize drop rates
• Provides hardware-accelerated support for complex routing protocols and multicast groups

Applications

• Data center spine and leaf switches requiring high throughput
• Enterprise core routers demanding low latency and high reliability
• Service provider edge equipment for carrier-grade networking

Procurement Notes

Verify the specific suffix B1KFSBLG against the manufacturer's official datasheet to confirm pinout compatibility and temperature range. Ensure that the procurement source provides original packaging seals and traceability documentation. Cross-reference the date code with current production status to avoid obsolete stock. Confirm that the supplier offers valid warranty terms covering manufacturing defects.

Selection Notes

Select this component when designing systems requiring high port density and advanced QoS without software dependency. Evaluate thermal requirements as high-performance switching generates significant heat; ensure adequate heatsinking or active cooling solutions are integrated into the PCB design. Verify that the host processor can handle the control plane overhead associated with managing the switch ASIC's configuration registers and statistics counters effectively.

Part Context

This part is a member of the Broadcom Trident II series, which established benchmarks for data center switching performance upon release. It succeeded earlier generations by offering increased bandwidth per port and enhanced scalability. The B1KFSBLG variant specifically denotes the package type, speed grade, and industrial or commercial temperature rating defined by Broadcom's internal coding standards for mass production units.

Replacement Considerations

Direct replacements must match the pin-to-pin footprint and register compatibility of the Trident II family. Verify that alternative parts support the same VLAN, ACL, and QoS feature sets required by the existing firmware. Check for any differences in power consumption profiles that might necessitate changes to the power delivery network design.