Eight-Port GbE Switch with Eight Integrated PHYs and LoopDTech™

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Highly integrated, smart-managed Gigabit switch. The switch design is based on the field-proven, industry-leading BCM5385.
The BCM5398 combines all the functions of a high-speed switch system including eight full-duplex 10/100/1000 BASE-T/TX Ethernet transceivers, a packet buffer, media access controllers (MACs) and a non-blocking switch fabric into a single 0.13 micron CMOS device. In addition, the BCM5398 has one GMII/RGMII/MII/RvMII interface for a CPU or a PON/DSL/cable router chip. It complies with the IEEE 802.3 and IEEE 802.3x specifications including the MAC control PAUSE frame, providing compatibility with all industry-standard Ethernet, Fast Ethernet and Gigabit Ethernet devices. In one compact silicon chip, the BCM5398 also features VLAN, VLAN double tagging, per-port QoS, jumbo frame, rate control, and MIBs management. Additionally, two Broadcom patented technologies, LoopDTech™ and CableChecker™, allow the BCM5398 to reduce the user effort and cost of troubleshooting cable problems and loops during installation and for post-install support. LoopDTech also eliminates the cost of hardware and software required to run spanning tree protocol. CableChecker, unlike traditional TDR-based cable diagnostics, can detect cable and connector problems without having to disconnect the cable from the other end and interrupt live traffic, enabling it to run while the switch is passing packets.


  • Highly integrated, non-blocking eight-port 10/100/100 switch silicon
  • The BCM5398 integrates eight Gigabit Ethernet ports with integrated 10/100/1000 PHYs
  • Designed to help IT reduce network downtime and minimize installation, maintenance and support effort with LoopDTech™ technology for loop detection without running spanning tree protocol
  • Provides cost-effective solution to reduce the cost of system designs


  • Servers
  • Blade Servers
  • IP Telephones
  • VoIP Residential Terminal Adapters
  • Carrier Access Products
  • Enterprise LAN Switching
  • Embedded Switching
  • Customer Premise Equipment
  • SMB Switching
  • Wireless Routers
  • Home and Small Business Servers (switching)

Not Recommended for New Design

Replacement Part

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Specification Value
Lifecycle Not Recommended for New Design
Distrib. Inventory No


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