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DP83825I

ACTIVE

Smallest form factor (3-mm by 3-mm), low-power 10/100-Mbps Ethernet PHY transceiver with 50-MHz c

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Data sheet

DP83825I

ACTIVE
Data sheet Order now

Product details

Datarate (Mbps) 10/100 Interface type RMII (Master and Slave Mode) Rating Catalog Number of ports Single Features Cable diagnostics, EEE, Low power, Single supply, WoL I/O supply voltage (typ) (V) 1.8, 3.3 Operating temperature range (°C) -40 to 85 Number of LEDs 2 ESD HBM (kV) 4
Datarate (Mbps) 10/100 Interface type RMII (Master and Slave Mode) Rating Catalog Number of ports Single Features Cable diagnostics, EEE, Low power, Single supply, WoL I/O supply voltage (typ) (V) 1.8, 3.3 Operating temperature range (°C) -40 to 85 Number of LEDs 2 ESD HBM (kV) 4
WQFN (RMQ) 24 9 mm² (3 mm × 3 mm)
  • Ultra Small Form Factor 10/100Mbps PHY : QFN 3mm × 3mm, 24 pin
  • Cable reach up to 150 meters
  • Very low power consumption < 127mW
  • Integrated MDI and MAC termination resistors
  • Programmable energy saving modes
    • Active sleep
    • Deep power-down
    • Energy Efficient Ethernet (EEE) IEEE 802.3az
    • EEE support for legacy MAC
    • Wake-on-LAN (WoL)
  • Voltage mode line driver
  • MAC interface: RMII (leader and follower mode)
  • Single 3.3V power supply
  • I/O voltages: 1.8V and 3.3V
  • Repeater : RMII back-to-back mode in unmanaged mode
  • MDC/MDIO Interface for configuration and status
  • Fast link drop modes
  • Diagnostics tools: cable diagnostics, built-in self test (BIST), loopback modes
  • Programmable Hardware interrupt pin
  • Operating temperature range: –40°C to 85°C
  • Compliant to IEEE 802.3 100BASE-TX and 10BASE-Te specification
  • Ultra Small Form Factor 10/100Mbps PHY : QFN 3mm × 3mm, 24 pin
  • Cable reach up to 150 meters
  • Very low power consumption < 127mW
  • Integrated MDI and MAC termination resistors
  • Programmable energy saving modes
    • Active sleep
    • Deep power-down
    • Energy Efficient Ethernet (EEE) IEEE 802.3az
    • EEE support for legacy MAC
    • Wake-on-LAN (WoL)
  • Voltage mode line driver
  • MAC interface: RMII (leader and follower mode)
  • Single 3.3V power supply
  • I/O voltages: 1.8V and 3.3V
  • Repeater : RMII back-to-back mode in unmanaged mode
  • MDC/MDIO Interface for configuration and status
  • Fast link drop modes
  • Diagnostics tools: cable diagnostics, built-in self test (BIST), loopback modes
  • Programmable Hardware interrupt pin
  • Operating temperature range: –40°C to 85°C
  • Compliant to IEEE 802.3 100BASE-TX and 10BASE-Te specification

The DP83825I is an ultra small form factor, very low power Ethernet Physical Layer transceiver with integrated PMD sublayers to support 10BASE-Te, 100BASE-TX Ethernet protocols. The PHY supports up to 150 meters reach over CAT5e cable. The DP83825I interfaces directly to twisted pair media via an external transformer.

The DP83825I also supports Energy Efficient Ethernet, Wake-on-LAN and MAC isolation to further lower the system power consumption. Energy Efficient Mode can be enabled through register configuration for legacy MACs not supporting EEE signaling over MAC. DP83825I can operate in unmanaged repeater mode. In this mode, DP83825I works as a repeater without register configuration. The DP83825I offers integrated cable diagnostic tools, built-in self-test and loopback capabilities for ease of development and debug.

The DP83825I is an ultra small form factor, very low power Ethernet Physical Layer transceiver with integrated PMD sublayers to support 10BASE-Te, 100BASE-TX Ethernet protocols. The PHY supports up to 150 meters reach over CAT5e cable. The DP83825I interfaces directly to twisted pair media via an external transformer.

The DP83825I also supports Energy Efficient Ethernet, Wake-on-LAN and MAC isolation to further lower the system power consumption. Energy Efficient Mode can be enabled through register configuration for legacy MACs not supporting EEE signaling over MAC. DP83825I can operate in unmanaged repeater mode. In this mode, DP83825I works as a repeater without register configuration. The DP83825I offers integrated cable diagnostic tools, built-in self-test and loopback capabilities for ease of development and debug.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet DP83825I Low Power 10/100Mbps Ethernet Physical Layer Transceiver datasheet (Rev. C) PDF | HTML Apr 17, 2026
Application note DP83825 Troubleshooting Guide PDF | HTML Sep 9, 2025
Application note DP8382x IEEE 802.3u Compliance and Debug (Rev. B) PDF | HTML Apr 1, 2025
Application note DP838xx Wake-on-LAN (Rev. A) PDF | HTML Mar 4, 2024
Application note How to Pass IEEE Ethernet Compliance Tests PDF | HTML Sep 20, 2021
Application note How to Merge DP83825 On Linux Sitara AM335 Application Note (Rev. A) PDF | HTML Aug 31, 2021
Application note Ethernet PHY Configuration Using MDIO for Industrial Applications (Rev. A) May 7, 2021
Technical article A history of industrial Ethernet protocols and their benefits PDF | HTML Jul 15, 2020
Application brief How Ethernet's Long Cable Reach Benefits Building Automation Jun 29, 2020
Technical article SimpliPHY your Ethernet design, part 1: Ethernet PHY basics and selection process PDF | HTML Mar 11, 2020
Application note Solving Cable Faults Challenges with TI Ethernet PHYs (Rev. A) Jan 10, 2020
Technical article Top 3 considerations for harsh industrial Ethernet PDF | HTML Nov 4, 2019
Application note How to Use Energy Efficient Ethernet (IEEE 802.3az) With Texas Instruments Oct 7, 2019
Technical article Low power, big impact: Low-power Ethernet PHYs for building automation PDF | HTML Feb 21, 2019
Application note Selection and specification of crystals for Texas Instruments ethernet physical Feb 6, 2019
Technical article Two ways to save power with low-power Ethernet PDF | HTML Nov 17, 2016
Technical article How to select the right industrial Ethernet standard: EtherCAT PDF | HTML Sep 17, 2015
Technical article How Ethernet technology is shifting modern markets 40 years after its inception PDF | HTML Jul 27, 2015
Technical article Three things you should know about Ethernet PHY PDF | HTML Jul 15, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DP83825EVM — Small form factor 10/100 ethernet PHY evaluation module

The DP83825EVM lets designers evaluate the industry’s smallest form-factor, 10BASE-Te/100BASE-TX Ethernet physical layer transceiver, the DP83825I PHY. This evaluation module (EVM) lets designers use one of two interfaces: a network interface through an RJ-45 connector and a MAC (...)

User guide: PDF | HTML
Supported products & hardware
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GUI for evaluation module (EVM)

DIEP — Debug Interface for Ethernet PHYs (DIEP)

The drivers for Texas Instruments' Ethernet physical layer (PHY) transceivers support communication through the serial management interface (MDC/MDIO) to configure and read PHY registers. Linux and RTOS drivers can be found on our github.

 

Supported products & hardware
Support software

USB-2-MDIO — USB-2-MDIO Tool v1.0

The USB-2-MDIO software tool lets Texas Instruments' Ethernet PHYs access the MDIO status and device control registers.  The USB-2-MDIO tool includes a LaunchPad™ Development kit for TI's MSP430™ MCUs that is interfaced with a lightweight GUI.  The (...)

Supported products & hardware
Simulation model

DP83825 IBIS Model

SNLM226.ZIP (26 KB) - IBIS model
Supported products & hardware
Reference design

TIDA-010046 — EMC-compliant 10/100-Mbps Ethernet PHY reference design with IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD

This reference design is optimized for 10 to 100 Mbps using the low-power Ethernet physical layer (PHY) DP83825 supporting 150-m reach over CAT5e cable which is beyond the standard Ethernet distance limitation of 100 m (328 feet). This design has power delivery over Ethernet cable along with data (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
WQFN (RMQ) 24 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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