BCM53161XMB1ILFBG

Overview

The BCM53161XMB1ILFBG is an Ethernet switch IC from the Broadcom RoboSwitch family, designed for high-density access layer applications. It integrates eight 2.5 Gigabit Ethernet ports and one 10 Gigabit Ethernet uplink port within a single package. The device supports data rates of 10 Mb/s, 100 Mb/s, 1 Gb/s, 2.5 Gb/s, and 10 Gb/s. It operates within an industrial temperature range of -40°C to +85°C and utilizes an FBGA-425 package. The component includes integrated PHYs and supports standard interfaces such as MII, RGMII, and SGMII for flexible system integration.

Feature Summary

• Integrates multiple copper-based Ethernet physical layer transceivers for simplified board design
• Supports advanced Quality of Service (QoS) mechanisms for traffic prioritization
• Includes hardware-accelerated security features for network protection

Applications

• High-performance enterprise access switches
• Industrial networking equipment requiring wide temperature operation
• Wireless access point backhaul aggregation

Procurement Notes

Verify the specific suffix ILFBG against the manufacturer's current datasheet to confirm pinout compatibility and thermal specifications. Ensure that the supply chain source provides valid traceability documentation. Check for moisture sensitivity level requirements during storage and handling to prevent package damage before reflow soldering.

Selection Notes

Select this component when a solution combining 2.5GBASE-T client ports with a 10GBASE-X uplink is required. Compare power consumption metrics against alternative models in the BCM53xxx series if thermal constraints are critical. Confirm that the host processor interface matches the available MII or RGMII options provided by the silicon.

Part Context

This part belongs to the Broadcom RoboSwitch portfolio, which targets managed Ethernet switching solutions. It sits alongside other variants like the BCM53156 and BCM53158, differing primarily in port speed configurations and uplink bandwidth capabilities. The series is widely used in infrastructure equipment requiring deterministic latency and robust packet processing.

Replacement Considerations

Direct substitutes include BCM53156XMB1KFBG and BCM53158XPB1KFBG. Verify pin-to-pin compatibility and register-level software migration efforts before swapping. Ensure the replacement variant meets the same industrial temperature rating and package footprint requirements.