LAN9252/PT

Controllers Overview

The LAN9252/PT is a 2/3-port EtherCAT slave controller from Microchip Technology, housed in a 64-pin TQFP-EP package. It integrates dual full-duplex 100BASE-TX Ethernet PHYs supporting 100 Mbps speeds and HP Auto-MDIX. The device features an EtherCAT slave controller with 4K bytes of Dual Port RAM (DPRAM), three Fieldbus Memory Management Units (FMMUs), and four SyncManagers. It supports host interfaces including SPI/SQI, HBI, and Digital I/O modes. Operating voltage ranges from 1.8V to 3.3V, with an integrated 1.2V regulator allowing single 3.3V supply operation. The commercial temperature range is 0°C to +70°C.

Controllers Feature Summary

• Integrates dual 10/100 Ethernet PHYs with HP Auto-MDIX for flexible cabling
• Supports EtherCAT protocol with distributed clock synchronization
• Offers multiple host interface options including SPI, SQI, and 8/16-bit bus
• Includes comprehensive power management and Wake-on-LAN capabilities

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 matches the required package type and temperature grade. Confirm that the 'PT' designation corresponds to the 64-TQFP-EP package and commercial temperature range as specified in the official datasheet. Ensure compatibility with system voltage requirements and interface protocols before finalizing procurement.

Controllers Selection Notes

Select this component when a dedicated EtherCAT slave controller with integrated PHYs is required. Consider the available host interfaces such as SPI or parallel bus based on the microcontroller capabilities. Evaluate the need for digital I/O expansion or third-port network topology support. Verify that the commercial temperature range meets the environmental constraints of the target application.

Controllers Part Context

The LAN9252 series serves as a specialized solution for industrial automation networks requiring deterministic real-time communication. It bridges the gap between standard Ethernet infrastructure and fieldbus control systems. The integration of PHYs and controller logic reduces bill-of-materials complexity compared to discrete solutions.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.