DP83867ERGZR for High-Immunity Ethernet Systems

ElecSuppliers Part Number GuideSep 06, 2026

DP83867ERGZR from Texas Instruments is a robust Ethernet physical layer transceiver designed for 10Mbps, 100Mbps and Gigabit Ethernet applications. It combines low latency, flexible MAC interfaces and enhanced electrical protection in a compact 48-pin VQFN package.

The device is designed for systems that require dependable Ethernet communication in electrically demanding environments, including industrial automation, motor drives and embedded networking equipment.

Triple-Speed Ethernet Support

DP83867ERGZR supports 10BASE-Te, 100BASE-TX and 1000BASE-T Ethernet operation. This allows a single PHY design to handle multiple network speeds while maintaining compatibility with standard twisted-pair Ethernet infrastructure.

The PHY connects to the external copper network through an Ethernet transformer and provides the physical-layer functions required for transmission and reception.

Auto-negotiation can select the appropriate link speed and duplex mode with the connected network equipment, simplifying network configuration.

Ultra-Low Ethernet Latency

Low PHY latency can be important in industrial control systems where communication timing affects overall system response.

DP83867ERGZR provides transmit latency below 90ns and receive latency below 290ns. The device also supports Time Sensitive Networking applications and provides IEEE 1588 Start-of-Frame Detection for systems that require accurate network timing.

A synchronized 25MHz or 125MHz clock output can further support timing-sensitive Ethernet architectures.

Programmable RGMII Timing

DP83867ERGZR supports both RGMII and SGMII MAC interfaces. For RGMII designs, the PHY provides 16 programmable delay modes for the transmit and receive paths.

This allows designers to adjust the timing relationship between the MAC and PHY without relying entirely on fixed PCB trace-length compensation.

The device also provides programmable MAC interface termination impedance, giving additional flexibility when optimizing signal integrity for different processor and board configurations.

Designed for Electrically Harsh Environments

Industrial Ethernet nodes can be exposed to electrical noise, switching transients and electrostatic discharge. DP83867ERGZR is designed with enhanced immunity features for these environments.

The device exceeds 8kV IEC 61000-4-2 direct-contact ESD protection and meets EN55011 Class B emission requirements.

Integrated MDI termination resistors also reduce the need for external components around the Ethernet physical interface.

Network Diagnostics and Power Management

DP83867ERGZR provides cable diagnostic functions that can help identify physical-layer problems during development and field maintenance.

Wake-on-LAN packet detection allows the Ethernet interface to participate in low-power system architectures. Fast link-down functionality can also help reduce the time required to detect a lost Ethernet connection.

The PHY operates with configurable I/O voltage levels of 1.8V, 2.5V and 3.3V, allowing integration with processors using different digital logic supplies.

Compact VQFN Package

The DP83867ERGZR variant is supplied in a 48-pin VQFN package measuring approximately 7mm × 7mm. It supports an operating temperature range of -40°C to +105°C.

Its combination of compact packaging, low latency and industrial-oriented protection makes it suitable for applications where board space is limited but Ethernet performance cannot be compromised.

Industrial Ethernet Applications

DP83867ERGZR can be used in motor drives, factory automation equipment, industrial embedded computers, fieldbus gateways, wired communication infrastructure and test and measurement systems.

It is particularly suitable for Ethernet nodes that require Gigabit connectivity together with precise RGMII timing, synchronized clocking and strong immunity to electrical disturbances.