BCM53455A0KFSBG

Overview

The BCM53455A0KFSBG is a high-performance Ethernet switch integrated circuit manufactured by Broadcom Limited. It features a port configuration of twenty ports supporting 1G and 2.5G speeds, alongside four dedicated 10G uplink ports. The device includes an embedded CPU for management functions and supports advanced switching capabilities. Packaged in the KFSBG format, this component is designed for robust network infrastructure applications requiring scalable bandwidth and efficient data processing.

Feature Summary

• Integrates twenty ports with support for both 1G and 2.5G Ethernet speeds to accommodate diverse network requirements.
• Includes four dedicated 10G uplink ports for high-bandwidth aggregation and backbone connectivity.
• Features an embedded CPU architecture to handle complex switching logic and management tasks.

Applications

• Enterprise core and distribution layer switches
• Data center top-of-rack switching solutions
• High-density access point aggregation networks

Procurement Notes

Verify the specific ordering suffix against official Broadcom documentation to ensure correct package type and temperature range. Confirm RoHS compliance status through authorized distributors. Request the latest datasheet to validate pinout compatibility and electrical specifications before integration into design schematics.

Selection Notes

Select this component when a mix of 2.5G client ports and 10G uplinks is required. Evaluate thermal dissipation needs due to the high port density. Ensure the host system provides adequate power delivery for the integrated CPU and PHY circuits. Compare against alternative Broadcom series for specific feature set alignment.

Part Context

This part belongs to the Broadcom BCM53xxx series of Ethernet switches. It represents a segment of the portfolio focused on multi-gigabit access and aggregation layers. The KFSBG suffix typically denotes a specific ball grid array package variant used in modern surface-mount assembly processes for networking hardware.

Replacement Considerations

Consult official Broadcom substitution guides for verified equivalents. Cross-reference pinouts and register maps if considering functional alternatives from other manufacturers. Verify that any substitute maintains the same 20x1/2.5G and 4x10G port topology.