BCM5761B0KFBG

Overview

The BCM5761B0KFBG is a fully integrated Gigabit Ethernet controller from Broadcom, designed for high-performance network connectivity. It combines a Media Access Control (MAC) unit with a Physical Layer (PHY) transceiver on a single die. The device supports 10/100/1000BASE-T standards and features an integrated TPM 1.2 module for enhanced security capabilities. It utilizes a PCI Express interface for system communication and is housed in a BGA package.

Feature Summary

• Integrates MAC and PHY functions for compact design
• Supports 10/100/1000BASE-T Gigabit Ethernet standards
• Includes built-in TPM 1.2 security module

Applications

• Desktop computer mainboards
• Server network interfaces
• Workstation connectivity solutions

Procurement Notes

Verify the specific suffix 'B0KFBG' against official Broadcom documentation to ensure correct pinout and thermal specifications. Confirm RoHS compliance status through manufacturer datasheets rather than distributor summaries. Request original component marking images to distinguish genuine parts from potential counterfeits before finalizing orders.

Selection Notes

Select this component when a single-chip solution for Gigabit Ethernet is required alongside hardware security features. It is suitable for designs where space constraints prevent separate MAC and PHY implementations. Ensure the host system supports the necessary PCI Express lanes and provides adequate power delivery for the integrated PHY section.

Part Context

This part belongs to the Broadcom NetXtreme family of Ethernet controllers. It represents a generation of integrated controllers that moved away from discrete PHY components. The inclusion of TPM functionality distinguishes it from standard network controllers, targeting markets requiring secure boot or data protection at the hardware level.

Replacement Considerations

Direct replacements require matching the integrated MAC/PHY architecture and TPM support. Verify compatibility with existing BIOS and driver environments. Cross-reference pinouts carefully as package variations within the same family may differ electrically.