BCM84891LB0IFEBG

Drivers, Receivers, Transceivers Overview

The Broadcom BCM84891LB0IFEBG is a single-port Ethernet CMOS transceiver designed for high-performance network communication. It supports multiple Ethernet speeds including 10GBASE-T, 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX. The device integrates MAC interfaces such as USXGMII, XFI, and SGMII, enabling flexible connectivity with various network controllers. It operates on a single power supply with core voltage at 0.8V and I/O voltages of 1.2V, 1.8V, or 2.5V. The chip supports IEEE 802.3bz and NBASE-T standards over Cat5e/6/6A cabling.

Drivers, Receivers, Transceivers Feature Summary

• Supports multi-rate Ethernet standards from 100Mbps to 10Gbps
• Integrates versatile MAC interfaces for simplified hardware design
• Includes full-link functionality from MAC to magnetic components
• Compatible with standard twisted-pair copper cabling

Drivers, Receivers, Transceivers Applications

• Fiber-to-the-Home (FTTH) Optical Network Units (ONU)
• DOCSIS eMTA cable modem terminal adapters
• High-speed home gateways and routers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'IFE' against official datasheets to confirm package type and temperature range. Ensure compatibility with existing PCB footprints and thermal management requirements before procurement. Confirm RoHS compliance status through authorized channels.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring support for emerging 2.5G and 5G Ethernet speeds alongside legacy 1G and 10G standards. It is suitable for applications needing integrated PHY and MAC interface flexibility without external magnetics. Consider system power budget constraints due to its CMOS architecture.

Drivers, Receivers, Transceivers Part Context

This part belongs to the Broadcom BCM84891 series of single-port Ethernet transceivers. It shares functional similarities with other variants in the family, distinguished primarily by packaging options and industrial temperature ratings. The series targets broadband access and enterprise networking infrastructure.

Drivers, Receivers, Transceivers Replacement Considerations

Check for direct substitutes within the BCM84891 family, such as the BCM84891LB0KFEBG, verifying that pinouts and electrical characteristics match exactly. Cross-reference with distributor databases for availability if original stock is limited.