DP83867IRRGZT Low-Latency Ethernet PHY for Industrial Systems

ElecSuppliers Part Number GuideSep 06, 2026

DP83867IRRGZT is a 10/100/1000 Ethernet physical layer transceiver from Texas Instruments designed for industrial networking applications. The device combines Gigabit Ethernet performance with very low RGMII latency, programmable interface timing and enhanced electrical protection.

Its support for 10BASE-Te, 100BASE-TX and 1000BASE-T makes it suitable for embedded Ethernet equipment that needs reliable communication across different network speeds. The industrial temperature range of -40°C to +85°C also allows the PHY to operate in demanding equipment environments.

Ultra-Low RGMII Latency

Low interface latency is one of the main advantages of the DP83867IRRGZT. The PHY provides transmit latency below 90ns and receive latency below 290ns through the RGMII interface.

For systems where Ethernet response time matters, reducing PHY latency can help improve overall network timing. The device also provides 16 programmable RGMII delay modes for both transmit and receive paths, allowing engineers to adjust timing according to MAC requirements and PCB layout.

The PHY supports MII, GMII and RGMII MAC interfaces, giving system designers flexibility when integrating it with processors, network controllers and industrial computing platforms.

10/100/1000 Ethernet with Industrial Protection

DP83867IRRGZT supports IEEE 802.3-compliant 10BASE-Te, 100BASE-TX and 1000BASE-T operation. Integrated MDI termination resistors help simplify the Ethernet interface, while cable diagnostic functions provide additional tools for identifying physical-layer problems.

The device is designed with enhanced ESD and EMC performance. It exceeds 8kV IEC 61000-4-2 direct-contact ESD protection and meets EN55011 Class B emission requirements.

These characteristics are useful for industrial Ethernet equipment exposed to electrical interference, switching noise and transient events.

TSN and IEEE 1588 Timing Support

The DP83867IRRGZT supports Time Sensitive Networking applications and provides Start of Frame Detection for IEEE 1588 timestamping.

A synchronized 25MHz or 125MHz clock output is also available. These timing capabilities make the PHY suitable for networked industrial systems where synchronization between Ethernet nodes is important.

Potential applications include factory automation, industrial controllers, motion systems and other Ethernet-based equipment requiring more predictable network timing.

Flexible Interface and Compact Package

DP83867IRRGZT provides configurable I/O voltage options of 1.8V, 2.5V and 3.3V, allowing integration with different digital logic environments.

The device is supplied in a 48-pin VQFN package with a 7mm × 7mm footprint. The compact package helps reduce PCB area while retaining the features required for a full Gigabit Ethernet PHY implementation.

The part operates from -40°C to +85°C and is currently listed as an active device, making DP83867IRRGZT suitable for industrial Ethernet designs that require long-term component availability.

Applications

DP83867IRRGZT can be used in industrial Ethernet controllers, factory automation equipment, embedded computers, network gateways, industrial communication modules and Gigabit Ethernet systems.

Its combination of ultra-low RGMII latency, programmable timing, TSN capability, IEEE 1588 support and strong ESD protection makes it particularly suitable for industrial networking designs where both communication performance and physical-layer robustness are important.