Broadcom BCM54811 10/100/1000BASE-T Transceivers

Broadcom BCM54811 BroadR-Reach Single-Port 10/100/1000BASE-T Transceiver is a triple-speed Gigabit Ethernet (GbE) transceiver. The BCM54811 integrates into a single monolithic CMOS chip and performs all physical layer (PHY) 1000BASE-T, 100BASE-TX, and 10BASE-T functions on 5 UTP. The 10BASE-T Ethernet can run on standard categories 3, 4, and 5 UTP.

The BCM54811 exceeds IEEE specifications for noise cancellation and transmission jitter. Consistent and reliable operation is achieved over the broadest range of existing cable plants.


  • Single-chip integrated triple-speed Ethernet transceiver. Support for the following copper line interfaces:
    • 1000BASE-T IEEE 802.3ab
    • 100BASE-TX IEEE 802.3u
    • 10BASE-T IEEE 802.3
    • 10Mbps BroadR-Reach
    • 100Mbps BroadR-Reach
  • Integrated twisted-pair termination resistors
  • Supports RGMII MAC interface
  • Ethernet@Wirespeed™
  • Integrated voltage regulator
  • Trace matched output impedance
  • Line loopback
  • Low EMI emissions
  • Robust cable ESD (CESD) tolerance
  • Support for jumbo packets up to 10KB
  • Detection and correction of pair swaps (MDI crossover), pair skew, and pair polarity (supported only in IEEE standard modes: 1000BASE-T, 100BASE-TX, and 10BASE-T)
  • Advanced power management
  • IEEE 1149.1 (JTAG) boundary scan
  • Super Isolate mode package
  • 48-pin MLP package
  • IEEE 1588 v2 compliant
  • IEEE 802.3az compliant (supported only in IEEE standard modes: 1000BASE-T and 100BASE-TX)
    • Supports native Energy Efficient Ethernet™ (EEE) MACs
    • Supports legacy non-EEE MACs using AutogrEEEn® mode


  • High-density GbE switches and routers

Functional Block Diagram

Block Diagram - Broadcom BCM54811 10/100/1000BASE-T Transceivers
Published: 2015-12-02 | Updated: 2022-03-11