LAN9303 Ethernet Switch



Microchip's SMSC and Digi-Key offer a full-featured 3-port Ethernet switch with small footprint


Microchip LAN9303 Ethernet Switch Microchip's LAN9303 is a high-performance, small-footprint, full-featured 3-port managed Ethernet switch. This device is application-optimized for consumer electronics designs that have a rapid development cycle and require low-cost switching functionality, flexibility and ease of integration. Featuring some of the industry’s smallest form factor 3-port switches, LAN9303 supports compact PCB design and single MII/RMII/Turbo MII (Media Independent, Reduced Media Independent and Turbo Media Independent Interfaces). The LAN9303 combines the functions of a 10/100 switch system, including the Switch Fabric, packet buffers, Buffer Manager, Media Access Controllers PHY transceivers and serial management.

Features Applications
  • High-performance, full-featured 3-port switch with per-port IEEE 802.1Q VLAN support (up to 16 VLAN groups)
  • Industry's highest (±8kV/15kV) per-port ESD protection
  • IGMP v1/v2 monitoring for multicast packet filtering
  • Up to 200Mbps network speed via a Turbo MII interface
  • Optional EEPROM or external CPU serial management support via an I²C™ interface
  • Integrated regulators require a single 3.3V supply
  • Virtual PHY feature simplifies software development by mimicking multiple switch ports as a single-port PHY
  • 42 per-port MIB counters for efficient network management
  • Cable, satellite, and IP set-top boxes
  • Digital televisions (DTVs)
  • Digital/personal video recorders
  • VoIP/video phone systems
  • Home gateways/consumer audio/video
  • Test/measurement equipment
  • Industrial automation and control

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Digi-Key
Part Number
Microchip
Part Number
Description  
638-1082-ND LAN9303-ABZJ IC ETHER SW 3PORT 16BIT 56QFN LAN9303 Datasheet
638-1095-ND EVB9303 EVALUATION BOARD FOR LAN9303 EVB9303 Datasheet