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LAN9250/ML

MCHPLAN9250/ML

Microchip Technology
Ethernet Controller 10/100 Base-T/TX PHY I2C, SPI Interface 64-QFN (9x9)
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Overview

The LAN9250/ML is a high-performance 10/100 Ethernet controller featuring an integrated PHY and MAC designed for embedded systems requiring high-speed connectivity over SPI or I2C. It includes a hardware time stamp unit compliant with IEEE 1588v2, making it suitable for synchronized networking applications. The device supports 10BASE-T, 100BASE-TX, and 100BASE-FX fiber protocols while maintaining a low power profile through Energy Efficient Ethernet (802.3az) standards.

Why Choose This Part

The LAN9250/ML eliminates the need for an MCU with an integrated Ethernet peripheral, allowing engineers to add networking to almost any host via a standard serial interface. It features an integrated 1.2V regulator for single 3.3V supply operation and provides robust power management with multiple sleep modes, including Wake on LAN (WoL).

Applications

Industrial Automation
Integration into PLCs and industrial sensors requiring IEEE 1588v2 hardware time-stamping for precise synchronization.
Embedded Web Servers
Providing network access to low-power microcontrollers through a simple SPI or I2C interface without requiring a built-in MAC.
Cable Diagnostics
Utilizing built-in diagnostic tools to detect cable faults and distance to shorts/opens in field installations.
Fiber Optic Networking
Interfacing with external fiber transceivers for 100BASE-FX applications in high-noise electrical environments.

Key Specifications

Function Controller
Protocol Ethernet
Interface I2C, SPI
Standards 10/100 Base-T/TX PHY
Package / Case 64-VFQFN Exposed Pad
Voltage - Supply 1.8V ~ 3.3V
Operating Temperature 0degC ~ 70degC
Supplier Device Package 64-QFN (9x9)

Getting Started

Start development with the EVB-LAN9250 evaluation board, which provides a direct interface to common MCU platforms. Drivers and software libraries are provided by Microchip for seamless integration with TCP/IP stacks like lwIP or the MPLAB Harmony framework.

LAN9250/ Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
LAN9250/ML (this part) VFQFN-64 304
LAN9250/PT TQFP-64 138

Also Consider

ENC28J60-I/ML MCHPMicrochip Technology - A more cost-effective but slower 10BASE-T only solution for applications with limited bandwidth requirements.
W5500 WIZnet - An alternative with a hardwired TCP/IP stack that offloads the entire network processing from the host MCU.

Categories

Interface ICs > Ethernet PHY