Microchip 3-Port 10/100 Ethernet Switch IC, 3.3 V, 200 Mbps, Full Duplex/Half Duplex LAN9303I-ABZJ

Microchip LAN9303I-ABZJ is a compact, high-performance 3-port 10/100 Mbps Ethernet switch integrated circuit designed for industrial and communication networking applications. Operating from a single 3.3 V supply, this switch IC supports both full duplex and half duplex communication modes, providing versatile connectivity options for embedded systems and network devices.

The IC is housed in a 56-pin QFN surface mount package, with dimensions of 8 mm length, 8 mm width, and 1 mm height, making it suitable for space-constrained PCB designs. It features a turbo MII interface delivering network speeds of up to 200 Mbps, tailored for efficient data transmission in 10/100 Ethernet networks.

Designed with robust features including ±8kV/15kV per-port electrostatic discharge protection, the LAN9303I-ABZJ ensures reliability in harsh industrial environments. It supports IEEE 802.1Q VLAN with up to 16 VLAN groups per port, enabling sophisticated network segmentation and traffic management.

Additional capabilities include IGMP v1/v2 monitoring for multicast packet filtering and an internal loopback mode for diagnostic testing. The device supports optional EEPROM or external CPU serial management through an I2C interface, facilitating flexible control and configuration. A Virtual PHY feature simplifies software development by mimicking multiple switch ports as a single-port PHY.

With an operational temperature range from -40°C to 85°C, this switch IC is engineered for durability in diverse industrial and commercial networking environments. Offers three full-featured switch ports with IEEE 802.1Q VLAN support for up to 16 VLAN groups.

Supports full duplex and half duplex communication modes for versatile network applications. Equipped with internal loopback mode for signal testing and diagnostics. Comes in a compact 56-pin QFN surface mount package measuring 8 mm x 8 mm x 1 mm.

Operates over a temperature range of -40°C to 85°C, suitable for industrial environments. Features up to 200 Mbps network speed via a Turbo MII interface for efficient data transmission. Includes per-port ESD protection rated ±8kV/15kV to ensure device reliability.

Supports IGMP v1/v2 multicast packet filtering for network traffic optimization. Offers optional EEPROM or external CPU serial management via I2C interface for flexible control. Includes a Virtual PHY feature to simplify software development by emulating multiple ports as single PHY.

This Ethernet switch IC is ideal for use in industrial networking, embedded control systems, communication infrastructure, and other applications requiring reliable, high-speed Ethernet switching capabilities. Browse our comprehensive selection of semiconductor interface ICs and related electronic components at EnvMart for your project and production needs.

Explore more products in our Power Switch ICs category.