LAN9253-V/R4X

Controllers Overview

The LAN9253-V/R4X is a 2/3-port EtherCAT SubDevice controller featuring dual integrated Ethernet PHYs with full-duplex 100BASE-TX transceivers supporting 100Mbps operation. It includes an EtherCAT controller with 8K bytes of Dual Port RAM (DPRAM), 8 Fieldbus Memory Management Units (FMMUs), and 8 SyncManagers. The device supports HP Auto-MDIX, Wake on LAN, and distributed clock synchronization via a 64-bit clock. Host interfaces include an 8/16-bit bus, SPI, and SQI. It operates on a single 3.3V supply with an integrated 1.2V regulator and is available in a 64-pin QFN package.

Controllers Feature Summary

• Dual integrated Ethernet PHYs with HP Auto-MDIX support for flexible cabling
• EtherCAT SubDevice controller with 8 FMMUs, 8 SyncManagers, and 8K bytes DPRAM
• Multiple host interface options including 8/16-bit bus, SPI, and SQI
• Comprehensive power management with Wake on LAN and low-power sleep modes

Controllers Applications

• Motor Motion Control
• Process and Factory Automation
• Communication Modules and Interface Cards
• Hydraulic and Pneumatic Valve Systems

Controllers Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature range. The R4X suffix typically indicates tape and reel packaging. Confirm availability through authorized Microchip distributors or direct sales channels. Ensure compliance with RoHS standards and check for any applicable errata sheets before finalizing procurement specifications.

Controllers Selection Notes

Select this component for applications requiring high-performance EtherCAT communication with integrated PHYs. Consider the 8/16-bit host bus interface for compatibility with standard microcontrollers. Evaluate the need for Digital I/O mode if no local processor is present. Verify that the system design accommodates the 64-pin QFN package and thermal requirements, especially for extended industrial temperature ranges.

Controllers Part Context

The LAN9253 is part of Microchip's EtherCAT SubDevice controller family, designed for industrial automation. It complements other LAN925x series devices by offering enhanced memory and FMMU resources compared to lower-end models like the LAN9252. It serves as a key component for building cost-effective and flexible EtherCAT nodes in complex network topologies.

Controllers Replacement Considerations

The FCE1353 from Fangxin Semiconductor is documented as a pin-to-pin compatible replacement for the LAN9253. Verify electrical characteristics and software compatibility when considering alternative sources. No other official substitutes are confirmed in public documentation.