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LAN9254-I/JRX

MCHPLAN9254-I/JRX

Microchip Technology
Ethernet Controller 10/100 Base-T/TX Bus Interface 80-TQFP-EP (12x12)
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Overview

The LAN9254 is a 3-port EtherCAT device controller with integrated Ethernet PHYs, designed for industrial real-time communication. It supports standard EtherCAT features including Distributed Clocks and integrated 10/100 Base-T/TX PHYs with HP Auto-MDIX to simplify PCB routing and reduce system complexity.

Why Choose This Part

This controller features an integrated 1.2V regulator for single 3.3V operation and a small 80-TQFP-EP footprint to save board space. It provides robust protection with JEDEC Class 3A ESD performance and latch-up resistance exceeding 150mA, ensuring reliability in harsh industrial environments.

Applications

Industrial Automation
Used in PLC and motion control systems requiring synchronized real-time Ethernet connectivity.
Robotic Actuators
Ideal for multi-axis robot arm controllers where sub-microsecond synchronization and low latency are critical.
Motor Drive Systems
Integrates into AC/DC motor drives for precise speed and position control via the EtherCAT protocol.

Key Specifications

Function Controller
Protocol Ethernet
Interface Bus
Standards 10/100 Base-T/TX
Package / Case 80-TQFP Exposed Pad
Voltage - Supply 1.14V ~ 1.26V
Operating Temperature -40degC ~ 85degC
Supplier Device Package 80-TQFP-EP (12x12)

Getting Started

Designers can evaluate the chip using the Microchip LAN9254 EtherCAT Evaluation Board. The device is configured via SPI, SQI, or I2C interfaces, and Microchip provides the SDK and EtherCAT Slave Stack Code (SSC) for firmware development.

Categories

Interface ICs > Ethernet PHY