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48-VQFN package


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Overview of DP83867ERGZR

The DP83867ERGZR is a gigabit Ethernet PHY transceiver IC designed for high-performance networking applications. It features advanced capabilities such as auto-negotiation, cable diagnostics, and energy-efficient Ethernet, making it ideal for use in various network communication systems.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VDD33: 3.3V power supply
  • MDC: Management Data Clock
  • MDO: Management Data Out
  • MDI: Management Data In
  • TX_CTL: Transmit Control
  • TXD[3:0]: Transmit Data
  • RXD[3:0]: Receive Data
  • RX_CTL: Receive Control
  • RX_ERR: Receive Error
  • REFCLK: Reference Clock
  • LED[3:0]: LED Outputs

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the DP83867ERGZR IC for a visual representation.

Key Features

  • Gigabit Ethernet PHY Transceiver: Provides gigabit Ethernet connectivity for high-speed network applications.
  • Auto-Negotiation: Automatically negotiates the best possible connection speed and duplex mode for optimal performance.
  • Cable Diagnostics: Offers diagnostics capabilities to detect cable faults and issues for improved network reliability.
  • Energy-Efficient Ethernet: Supports energy-efficient Ethernet standards for reduced power consumption during low link utilization.
  • Advanced Networking Features: Includes features such as IEEE 1588 precision time protocol support and jumbo frame support for advanced networking requirements.

Note: For detailed technical specifications, please refer to the DP83867ERGZR datasheet.


  • Networking Systems: Ideal for use in networking systems, including switches, routers, and industrial Ethernet applications.
  • Telecommunication Equipment: Suitable for telecommunication equipment requiring high-speed Ethernet connectivity.
  • Data Centers: Used in data center networking infrastructure for reliable and efficient data transmission.


The DP83867ERGZR is a high-performance gigabit Ethernet PHY transceiver IC that enables fast and reliable network communication. It offers advanced features for optimal network operation and connectivity.

Usage Guide

  • Power Supply: Connect VDD33 (Pin 12) to a 3.3V power supply for proper operation.
  • Ethernet Connections: Connect the transmit and receive data pins (TXD, RXD) to the corresponding Ethernet ports for data communication.
  • LED Indication: Utilize the LED outputs (LED[3:0]) for status indication such as link/activity.

Frequently Asked Questions

Q: Does the DP83867ERGZR support IEEE 1588 precision time protocol?
A: Yes, the DP83867ERGZR features support for IEEE 1588 precision time protocol, allowing for precise time synchronization in network applications.

Q: Is the DP83867ERGZR compatible with PoE (Power over Ethernet) systems?
A: The DP83867ERGZR itself does not support PoE functionality, but it can be used in conjunction with PoE systems for Ethernet connectivity.


For similar functionalities, consider these alternatives to the DP83867ERGZR:

  • DP83848JSQ/NOPB: Another gigabit Ethernet PHY transceiver IC with similar features and performance specifications.
  • RTL8211E-VB-CG: A gigabit Ethernet PHY chip from Realtek offering comparable functionality to the DP83867ERGZR.


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Interface type RGMII, SGMII Number of ports Single
Rating Catalog Features Cable diagnostics, IEEE 1588 SOF, JTAG1149.1
Supply voltage (V) 1 and 2.5 I/O supply voltage (typ) (V) 1.8, 2.5, 3.3
Operating temperature range (°C) -40 to 105 Number of LEDs 4
ESD HBM (kV) 8

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