MCHPLAN9500AI-ABZJ-TR
Overview
The LAN9500AI-ABZJ-TR is a high-performance, small-form-factor USB 2.0 to 10/100 Ethernet controller designed for industrial temperature ranges. It integrates a 10/100 Ethernet MAC and PHY, an HSIC interface, and a USB 2.0 device controller into a single 56-pin QFN package. The device features hardware-level checksum offloading and NetDetach technology to reduce system power consumption and CPU overhead.
Why Choose This Part
This controller reduces CPU utilization through TCP/UDP/IP/ICMP checksum offload support and automatic payload padding. It simplifies PCB design with HP Auto-MDIX support for automatic cable detection and an integrated core regulator that allows for single-supply operation. The industrial temperature rating and NetDetach power-saving mode make it suitable for harsh or power-constrained environments.
Applications
Getting Started
Engineers can evaluate this IC using the EVB-LAN9500A-QFN evaluation board. Drivers are widely available for Windows, Linux, and macOS, and the on-chip EEPROM controller allows for easy storage of MAC addresses and configuration data. Implementation requires an external 25MHz crystal and standard magnetics for the Ethernet interface.
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