BCM56134B1KFSB

Overview

The BCM56134B1KFSB is a telecommunications integrated circuit manufactured by Broadcom Limited. It functions as an Ethernet switch controller designed for high-density access applications. The device supports 24 Fast Ethernet (FE) ports and includes four 2.5 Gbps multi-layer switching capabilities. This configuration allows for efficient aggregation of upstream traffic while maintaining low latency for downstream user connections. The component is classified under the interface category for telecom equipment.

Feature Summary

• Supports 24 Fast Ethernet ports for dense user connectivity
• Integrates four 2.5 Gbps uplink interfaces for bandwidth aggregation
• Designed for multi-layer switching operations in access networks

Applications

• High-density residential gateway devices
• Fiber-to-the-home (FTTH) optical network terminals
• Enterprise edge switches requiring FE density

Procurement Notes

Verify current availability status as this specific part number may be subject to end-of-life restrictions. Confirm RoHS3 compliance requirements against project specifications. Ensure the ordering suffix matches the required package and temperature grade. Cross-reference with the manufacturer's latest product change notices for any assembly or substrate supplier updates prior to procurement.

Selection Notes

Select this component when a solution combining 24-port Fast Ethernet density with 2.5 Gbps uplinks is required. Evaluate thermal management needs for the specific PCB layout. Consider the multilayer package complexity during design-in. Verify that the control plane resources meet the application's protocol processing demands.

Part Context

This model belongs to the BCM56134 family of Ethernet switch controllers from Broadcom. It serves as a specialized variant optimized for access layer deployments where port density and moderate uplink speeds are critical. The B1KFSB suffix denotes specific packaging and material configurations distinct from other family members like the BCM56134B1KFSBLG.

Replacement Considerations

The BCM56134B1KFSBLG is a related variant within the same family. Verify pin compatibility and feature parity before substitution. Check if the BLG suffix indicates a different package type or environmental rating that affects mechanical integration.