BCM53115MKPBG

Overview

The BCM53115MKPBG is a highly integrated, non-blocking 5-port 10/100/1000 switch silicon manufactured on a 65-nanometer process. It integrates five Gigabit Ethernet PHYs and two fully integrated GMII/RGMII/MII Inband Management Ports (IMP) for glueless connection to a CPU or WLAN. The device provides 5 Gbps of switching capacity with 128 KB packet buffer, supports 4K MAC addresses, and includes IEEE 802.1Q VLAN with 4K entries. It features LoopDTech loop detection, CableChecker diagnostics, and comprehensive QoS scheduling.

Feature Summary

• Integrates five 10/100/1000 PHYs and two IMP interfaces for direct CPU or WLAN connectivity
• Includes patented LoopDTech technology for automatic network loop detection without Spanning Tree Protocol
• Supports advanced cable diagnostics via CableChecker to identify length and faults without interrupting live traffic
• Provides Layer 2 isolation through IEEE 802.1Q VLAN, MAC-based VLAN, and double tagging capabilities

Applications

• Consumer electronic devices requiring ubiquitous Gigabit Ethernet deployment
• Home networking equipment and CPE/Gateway systems
• WLAN routers and Smart switches

Procurement Notes

Verify the specific suffix 'KP' against official Broadcom documentation to confirm temperature range and package variations. Confirm current lifecycle status as this component family has historically faced discontinuation notices. Ensure compatibility with existing PCB footprints for the 400-pin package before procurement.

Selection Notes

Select this component when a single-chip solution is required for consumer-grade Gigabit Ethernet applications. It is suitable for designs needing integrated PHYs and management ports to reduce external component count. Consider alternative models like the BCM53115S if additional IMP ports are not required but cost optimization is prioritized.

Part Context

This part belongs to the BCM53115 series of 65nm smart switches designed by Broadcom. The series targets the consumer market segment, offering scalable interfaces for various networking needs. Variants within the series differ primarily in supported IMP ports, software feature sets, and operating temperature ranges.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet. Evaluate the BCM53115M or BCM53115U based on required IMP port availability and software support features.