BCM5789KFBG

Overview

The BCM5789KFBG is a high-performance Ethernet controller manufactured by Broadcom Limited. It features an integrated MAC and PHY, supporting 10/100/1000 Mbps speeds over copper interfaces. The device utilizes a 256-pin FCBGA package with dimensions of 17x17 mm. It operates at a nominal supply voltage of 1.2 V and employs CMOS technology. The component is RoHS compliant and designed for telecom circuit applications.

Feature Summary

• Integrated MAC and PHY functionality for simplified system design
• Supports 10/100/1000 Mbps Ethernet data rates
• Compatible with standard copper cabling infrastructure

Applications

• Telecommunications equipment
• Enterprise networking switches
• Industrial control systems

Procurement Notes

Verify the specific suffix KFBG to confirm the 256-pin FCBGA package and commercial temperature range. Confirm RoHS compliance status through official datasheets or manufacturer notifications before integration into regulated products.

Selection Notes

Select this component when a single-chip solution combining MAC and PHY is required for Gigabit Ethernet connectivity. Ensure the PCB layout supports the 17x17 mm BGA footprint and that the power supply provides a stable 1.2 V rail for optimal signal integrity.

Part Context

This part belongs to Broadcom's Ethernet controller portfolio, targeting cost-effective Gigabit solutions. It serves as a bridge between digital baseband processors and physical network media, replacing discrete MAC and PHY combinations in compact designs.

Replacement Considerations

Check for updated Broadcom revisions or pin-compatible alternatives within the same family. Verify interface compatibility if substituting with other Gigabit controllers from different manufacturers.