10G/40G/100G Retimer And Gearbox

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The BCM82332 is a physical layer device that supports 10G, 40G and 100G Ethernet.

In 100G mode, the device gearboxes four lanes of 25Gb/s data into a standard 10 by 10Gb/s CAUI bus. In retimer mode, the BCM82332 retimes 12 lanes of 10Gb/s data supporting three 40G Ethernet ports, twelve 10G Ethernet ports, or a mix thereof. This 12-lane structure is specifically designed to interoperate with Broadcom’s Trident 2+ high-density switch. The 25Gb/s, line side, interface is fully compliant with the 100G Ethernet IEEE802.3ba and IEEE802.3bj standards including support for IEEE CL73 (Autoneg), CL91 (FEC) and CL92 (Transmit Training).


  • 100G gearbox with optional retiming modes for 3x40GbE or 12x10GbE
  • Standard system side CAUI bus
  • Module control support for up to eight SFP+ modules or three QSFP modules
  • IEEE CL73 Auto Negotiation
  • CL85, CL92, CL93 Transmit Training
  • CL91 FEC
  • Fully adaptive 25G and 10G receivers with 30dB of EQ
  • Low power 28nm CMOS


  • DSLAMs
  • Blade Servers
  • Enterprise LAN Switching
  • Line Cards
  • Routers
  • Top-of-Rack Switches

Lifecycle Status


Specification Value
Lifecycle Active
Distrib. Inventory No
SerDes / GPHY 12 x 10G, 2 x 40G or 1 x 100G
I/O Bandwidth (Gbps) 240
Bandwidth UOM Gbps
PHY Type Gearbox
I/O BANDWIDTH (Gbps) 240 Gbps


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