BCM5751KFBG

Overview

The Broadcom BCM5751KFBG is a fully integrated Gigabit Ethernet controller featuring an on-chip transceiver, designed for high-performance network applications. It combines a triple-speed IEEE 802.3 compliant MAC with a PCI Express host interface and on-chip buffer memory in a single device. The component supports 10/100/1000BASE-T speeds and utilizes a low-voltage silicon process for ultra-low power consumption. Key electrical specifications include a 1x lane PCIe interface and support for multiple I/O voltages: 1.2V, 1.5V, 1.8V, and 2.5V. The device integrates SMBus 2.0, TCP/IP/UDP checksum offload, and Wake-on-LAN capabilities.

Feature Summary

• Integrates a triple-speed MAC and physical layer transceiver into a single chip to simplify hardware design.
• Features a high-speed RISC core with cache for efficient packet processing and data handling.
• Includes comprehensive security features such as TPM functionality and hardware authentication protocols.
• Supports advanced power management with Wake-on-LAN and out-of-box mode capabilities.

Applications

• Desktop LAN-on-Motherboard (LoM) implementations
• Network Interface Card (NIC) designs
• High-performance server connectivity solutions

Procurement Notes

Verify the specific suffix KFBG against official datasheets to confirm package type and temperature range. Ensure compatibility with target system voltage requirements before procurement. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm supply chain stability for production volumes.

Selection Notes

Select this component when a single-chip solution for Gigabit Ethernet is required to reduce PCB space. It is suitable for applications needing integrated PHY and MAC functions without external magnetic components. Consider power constraints as it offers ultra-low power operation via low-voltage processes.

Part Context

This component belongs to Broadcom's portfolio of integrated Ethernet controllers. It serves as a complete solution for network connectivity, replacing separate MAC and PHY chips. The BCM5751 series is widely used in embedded systems requiring reliable Gigabit performance with minimal external circuitry.

Replacement Considerations

Check for pin-compatible alternatives within the same Broadcom family. Verify if newer revisions offer improved power efficiency or additional features while maintaining functional equivalence for existing designs.