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LAN9221I-ABZJ

MCHPLAN9221I-ABZJ

Microchip Technology
Ethernet Controller 10/100 Base-T/TX PHY Parallel Interface 56-QFN (8x8)
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Overview

The LAN9221I-ABZJ is a high-performance 10/100 Ethernet controller designed for embedded systems requiring high data throughput via a 16-bit non-PCI parallel interface. It features an integrated PHY and MAC with a flexible architecture that offloads checksum tasks from the host CPU to improve overall system efficiency. This industrial-grade component supports a wide operating temperature range from -40C to +85C, making it suitable for demanding environments.

Why Choose This Part

The controller includes a 16KB buffer for RX/TX packets, significantly reducing the interrupt load on the host processor during high-speed data transfers. It operates on a single 3.3V supply and supports various power-management modes, including a low-current shutdown mode of 11uA to conserve energy in battery-powered applications.

Applications

Industrial Automation
Connecting PLCs and industrial controllers to Ethernet networks for real-time monitoring and control.
Set-Top Boxes and Digital Media
Providing high-speed wired networking for cable, satellite, and IP-based media streaming devices.
Point-of-Sale Terminals
Enabling secure and reliable network connectivity for payment processing and inventory management systems.
Embedded VoIP Systems
Managing high-bandwidth voice-over-IP traffic with low latency using its internal 16KB FIFO buffer.

Key Specifications

Function Controller
Protocol Ethernet
Interface Parallel
Standards 10/100 Base-T/TX PHY
Package / Case 56-VFQFN Exposed Pad
Voltage - Supply 3.3V
Operating Temperature -40degC ~ 85degC
Supplier Device Package 56-QFN (8x8)

Getting Started

To begin development, interface the 56-QFN package with your host processor via the 16-bit parallel bus. Review Microchip's reference drivers for Linux or RTOS environments to manage the MAC and PHY configurations. Ensure proper thermal grounding of the 56-VFQFN exposed pad and utilize the built-in oscillator to simplify clock distribution on your PCB.

Also Consider

KSZ8851SNL MCHPMicrochip Technology - An alternative 10/100 Ethernet controller that utilizes an SPI interface instead of a parallel interface.

Categories

Interface ICs > Ethernet PHY