LAN9252/ML

Controllers Overview

The LAN9252/ML is a 2/3-port EtherCAT slave controller featuring dual integrated Ethernet PHYs with HP Auto-MDIX. It includes an EtherCAT slave controller with 4K bytes of Dual Port RAM (DPRAM), 3 Fieldbus Memory Management Units (FMMUs), and 4 SyncManagers. The device supports 100BASE-TX operation and 100BASE-FX via external fiber transceivers. It interfaces with host systems through an 8/16-bit Host Bus Interface or SPI/Quad SPI. Power management features include low power modes, Wake on LAN (WoL), and distributed clock support for synchronization.

Controllers Feature Summary

• Integrated high-performance 100Mbps Ethernet transceivers compliant with IEEE 802.3/802.3u standards
• EtherCAT slave controller supporting 3 FMMUs, 4 SyncManagers, and distributed clock synchronization
• Flexible host interface options including 8/16-bit indexed/multiplexed bus and SPI/Quad SPI
• Comprehensive power management with multiple wake-up sources and low power sleep modes

Controllers Applications

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

Controllers Procurement Notes

Verify the specific suffix 'ML' corresponds to the 64-pin QFN package and commercial temperature range as defined in the official datasheet. Confirm that the ordering part number matches the exact silicon revision required for your design. Always consult the latest Microchip documentation for any updates to pin assignments or electrical characteristics before finalizing procurement specifications.

Controllers Selection Notes

Select this component when designing EtherCAT slave nodes requiring integrated PHYs and flexible host connectivity. Ensure the host system supports either the 8/16-bit parallel bus or SPI interfaces. Verify that the commercial temperature range meets the environmental requirements of the target application. Consider the need for a third port if star or tree network topologies are required, which may necessitate additional configuration.

Controllers Part Context

The LAN9252 series serves as a dedicated solution for industrial automation networks using the EtherCAT protocol. The LAN9252/ML variant specifically denotes the commercial temperature grade version housed in a 64-pin QFN package. This model integrates both the MAC and PHY layers, simplifying the design of compact I/O modules and servo drives compared to discrete solutions.

Controllers Replacement Considerations

Public confirmed substitute part numbers: None.