BCM84891B0IFSBG

Controllers Overview

The BCM84891B0IFSBG is a single-port Ethernet transceiver integrated circuit manufactured by Broadcom Limited. It supports multiple Ethernet speeds including 10GBASE-T, 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX. The device operates on Cat5e, Cat6, and Cat6A cabling. It features MAC interfaces such as USXGMII, XFI, and SGMII. The component is RoHS compliant and packaged in an FBGA format. Standard factory packaging quantity is 1232 units.

Controllers Feature Summary

• Supports multi-rate Ethernet standards from 100 Mbps to 10 Gbps
• Integrates full link functionality from MAC to magnetic components
• Compatible with various MAC interface protocols for flexible system integration

Controllers Applications

• PON ONU devices for fiber-to-the-home applications
• DOCSIS eMTA equipment
• High-speed network switches and routers

Controllers Procurement Notes

Verify the exact suffix against official Broadcom documentation to confirm temperature range and package variant. Confirm current availability status as lead times may vary significantly. Ensure compliance with specific project requirements regarding RoHS3 standards and supply chain authenticity before finalizing procurement decisions.

Controllers Selection Notes

Select this component when a single-port solution supporting NBASE-T and IEEE 802.3bz standards is required. Consider the integrated nature of the PHY and MAC interfaces for simplified PCB layout. Evaluate power consumption requirements against Energy Efficient Ethernet capabilities. Verify compatibility with existing system voltage levels and interface protocols.

Controllers Part Context

This part belongs to the Broadcom BCM8489 series of high-performance Ethernet transceivers. The series is designed for broadband access and enterprise networking applications requiring high data rates over copper cabling. Similar models in the family include variants with different port counts or interface configurations.

Controllers Replacement Considerations

Check for direct cross-references within the BCM8489 series. Verify pinout and electrical parameter compatibility if substituting with other Broadcom PHYs. Ensure any alternative component meets the same IEEE 802.3bz certification requirements.