DP83826IRHBT

Controllers Overview

The DP83826IRHBT is a single-port, industrial-grade Ethernet PHY supporting 10BASE-Te and 100BASE-TX standards. It operates within a temperature range of -40°C to +85°C and utilizes a 32-pin VQFN package measuring 5.00mm x 5.00mm. The device provides deterministic latency with a typical TX latency of 40ns and RX latency of 170ns. Power consumption remains below 160mW under active conditions. It accepts a single 3.3V analog supply (VDDA3V3) and supports I/O voltages of either 1.8V or 3.3V via the VDDIO pin. Interfaces include MII and RMII.

Controllers Feature Summary

• Deterministic low-latency performance optimized for real-time industrial protocols
• Configurable BASIC and ENHANCED operating modes for flexible integration
• Integrated cable diagnostics and built-in self-test capabilities
• Support for Energy Efficient Ethernet (EEE) and Wake-on-LAN

Controllers Applications

• Factory automation, robotics, and motion control systems
• Industrial Ethernet fieldbus networks
• Motor drives and grid infrastructure equipment
• Building automation controllers

Controllers Procurement Notes

Verify the specific suffix 'BT' against the manufacturer's current orderable addendum to confirm tape-and-reel packaging specifications. Ensure the component matches the industrial temperature grade (-40°C to +85°C) required for your application environment. Cross-reference the datasheet revision date to confirm compatibility with your design documentation.

Controllers Selection Notes

Select this model when deterministic latency is critical for real-time industrial communication. Choose the ENHANCED mode configuration if hardware bootstraps for features like fast link-drop detection are needed. Verify that the host MAC interface supports either MII or RMII signaling. Confirm that the system power budget accommodates the maximum specified current draw across all voltage domains.

Controllers Part Context

This component belongs to the DP83826I family of low-power Ethernet transceivers. It shares architectural similarities with the DP83826E but differs in its extended temperature rating limit. The device is designed to replace legacy PHYs in applications requiring EtherCAT compliance and robust ESD protection on MDI pins.

Controllers Replacement Considerations

DP83826IRHBR: Identical electrical and functional specifications; differs only in packaging format (cut tape vs. reel).

Controllers FAQ

How is the operating mode selected?

The ModeSelect pin determines the operation. Leaving it unconnected or pulling it up to VDDIO enables ENHANCED mode, while shorting it to GND configures the device for BASIC mode.

What is the function of the CLKOUT/LED1 pin?

In ENHANCED mode, this pin defaults to providing a 25MHz reference clock derived from the input crystal. It can be reconfigured via registers or straps to function as an LED indicator.

Does the device support 10BASE-T?

No, the DP83826 specifically supports 10BASE-Te and 100BASE-TX standards. It does not support legacy 10BASE-T signaling.