BCM53112MB1ILFBG

Overview

The BCM53112MB1ILFBG is an Ethernet IC from the Broadcom RoboSwitch series, designed for high-performance switching applications. It features a configuration of eight 10/100BASE-T ports, four 10/100/1000BASE-T ports, and two 2.5GBASE-T ports. The device integrates fifteen transceivers and supports data rates ranging from 10 Mb/s to 2.5 Gb/s. Interface options include MII, RGMII, and SGMII. It operates within a temperature range of -40°C to +85°C and is housed in a 425-ball FBGA package suitable for surface mount installation.

Feature Summary

• Integrates mixed-speed Ethernet ports including 10/100BASE-T, Gigabit, and 2.5GBASE-T capabilities within a single chip.
• Supports multiple media-independent interface standards such as MII, RGMII, and SGMII for flexible system integration.
• Designed for industrial temperature operation ranges ensuring reliability in demanding environments.

Applications

• Enterprise network infrastructure requiring multi-gigabit uplink speeds
• Industrial automation systems needing robust Ethernet connectivity
• Access points and wireless controllers supporting 2.5G backhaul

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and humidity sensitivity handling requirements prior to assembly. Ensure the specific suffix matches design specifications as ordering variations may exist without functional changes documented in public sources.

Selection Notes

Select this component when a mix of legacy 10/100 Mbps ports and modern 2.5 Gbps uplinks is required. Consider the 425-ball FBGA package constraints for PCB layout. Verify that the host system supports the necessary MII, RGMII, or SGMII interfaces for proper link negotiation and data transmission.

Part Context

This part belongs to the Broadcom BCM53xxx RoboSwitch family, which focuses on managed and unmanaged Ethernet switching solutions. The BCM53112 variant specifically addresses scenarios requiring heterogeneous port speeds, bridging traditional copper connections with higher-speed multi-gigabit requirements in compact form factors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Broadcom technical support for qualified alternatives if this specific package or speed configuration is unavailable.