LAN9255/ZMX018

Controllers Overview

The LAN9255/ZMX018 is a System-In-Package (SIP) combining the Microchip LAN9253 EtherCAT device controller and SAM E53J ARM Cortex-M4F MCU in a 128-pin TQFP. It features 256 KB of programmable flash, 128 KB of SRAM, and dual integrated 10/100 Ethernet PHYs with HP Auto-MDIX. The component supports 8 FMMUs and 8 SyncManagers for distributed clock synchronization. Operating temperature ranges are commercial (0°C to +70°C), industrial (-40°C to +85°C), and extended industrial (-40°C to +105°C).

Controllers Feature Summary

• Integrates an ARM Cortex-M4F processor with 1 Msps 12-bit ADC and USB 2.0 interface.
• Includes dual 100Mbps Ethernet transceivers with signal quality diagnostics and transformer-less link support.
• Supports Distributed Clock synchronization via 8 Fieldbus Memory Management Units and 8 SyncManagers.

Controllers Applications

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

Controllers Procurement Notes

Verify the ordering suffix ZMX018 corresponds to the required 256 KB memory configuration. Confirm that the specific temperature grade matches the application environment requirements. Ensure the package type aligns with the PCB footprint design specifications.

Controllers Selection Notes

Select this variant when 256 KB of flash memory is sufficient for the application firmware. Compare against higher memory options if larger codebases or data storage are needed. Verify power supply constraints as the internal regulator may need to be disabled for extended temperature operation.

Controllers Part Context

This part belongs to the LAN9255 family of EtherCAT controllers. Variants differ primarily by memory size (256K, 512K, 1024K) and operating temperature range. All variants share the same 128-pin TQFP package and core functional architecture.

Controllers Replacement Considerations

LAN9255-I/ZMX018 provides the same memory configuration with an expanded industrial temperature range. LAN9255-V/ZMX018 offers extended industrial temperature capability. Discrete components like the LAN9253 and SAM E53J can replace this SIP but require additional board space and integration effort.

Controllers FAQ

What is the Device ID for the LAN9255/ZMX018?

The Device ID returned by the integrated SAM E53J for the LAN9255/ZMX018 is 0x61830357.

How does the internal regulator behave in extended temperature mode?

For the extended industrial temperature range option, the internal regulator must be disabled, requiring an external 2.5V supply for the Ethernet magnetics.

What interfaces are available between the LAN9253 and SAM E53J dies?

The dies interface via SPI/QSPI connections, including SCK, SCS#, and four SIO lines, as well as an RMII interface for Ethernet communication.