LAN9255-I/ZMX020

Controllers Overview

The LAN9255-I/ZMX020 is a System-In-Package (SIP) combining the Microchip LAN9253 EtherCAT device controller and SAM E53J ARM Cortex-M4F MCU. It features integrated dual 10/100 Ethernet PHYs with HP Auto-MDIX, 8 FMMUs, and 8 SyncManagers. The MCU includes 1 MB flash, 256 KB SRAM, and peripherals like USB 2.0, QSPI, and ADC. Operating temperature range is -40°C to +85°C. Supply voltage is single 3.3V. Package is 128-TQFP-EP (14x14 mm). Device ID is 0x61830355.

Controllers Feature Summary

• Integrated EtherCAT device controller with distributed clock support
• ARM Cortex-M4F MCU with embedded memory and peripherals
• Dual integrated Fast Ethernet PHYs with cable diagnostics
• Flexible host bus interface supporting SPI, SQI, and HBI 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 ordering suffix matches the required temperature grade (-40°C to +85°C for 'I') and memory configuration (1024K for '020'). Confirm package type is 128-pin TQFP with exposed pad. Check datasheet revision DS00003646B for latest specifications. Ensure compatibility with system power supply requirements of 3.3V.

Controllers Selection Notes

Select this component when an integrated EtherCAT slave solution with local processing is needed. The 1 MB flash supports complex application logic. Verify that the 128-pin TQFP footprint fits the PCB layout. Consider the extended industrial temperature rating if operating in harsh environments. Compare against discrete LAN9253 and SAM E53J combinations for size and BOM optimization.

Controllers Part Context

This part belongs to the LAN9255 family, which integrates the LAN9253 controller and SAM E53J MCU. Variants differ by temperature range (Commercial, Industrial, Extended) and memory size (256K, 512K, 1024K). The '-I' suffix denotes Industrial temperature, and '020' indicates 1024K memory. All variants share the same 128-TQFP package and core functionality.

Controllers Replacement Considerations

Discrete solutions using separate LAN9253 and SAM E53J components can replace this SIP but require more board space. Other LAN9255 variants with different memory or temperature ratings are pin-compatible but may have different electrical characteristics or firmware requirements.