Multiport Gigabit Ethernet Switch

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Highly integrated, cost-effective unmanaged-smart gigabit switch. The switch design is based on the field-proven, industry-leading ROBO architecture.
This device combines all the functions of a high-speed switch system including packet buffers, PHY transceivers, media access controllers (MACs), address management, port-based rate control and a non-blocking switch fabric into a single 65 nm CMOS device. Designed to be fully compliant with the IEEE 802.3™ and IEEE 802.3x specifications, including the MAC-control PAUSE frame, the BCM53128 provides compatibility with all industry-standard Ethernet, Fast Ethernet and Gigabit Ethernet (GbE) devices. The BCM53128 has a rich feature set suitable for not only standard GbE connectivity for desktop and laptop PCs, but also for next-generation gaming consoles, set-top boxes, networked DVD players and home theater receivers. It is also specifically designed for next-generation Small Office/Home Office and Small/Medium Business routers and gateways. For documentation and support, visitBroadcom Communities


  • Nine 10/100/1000 media access controllers
  • Eight port 10/100/1000BASE-T/Tx transceivers
  • One GMII/RGMII/MII/RvMII/TMII/RvTMII interface for an In-band Management Port (IMP) for connection to a CPU/management entity without PHY
  • IEEE 802.1p, MAC, Port, TOS and DiffServ QoS for four queues, plus two time-sensitive queues


  • Home and Small Business Servers (switching)
  • Connected Audio + Video

Lifecycle Status


Specification Value
Lifecycle Active
Distrib. Inventory Yes
SerDes / GPHY 8 GPHY, 1 x 1G
I/O Bandwidth (Gbps) 9


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