Active production — no EOL watch needed
The LAN9311-NU: RoHS3 compliant, so no exemption-based restrictions apply to EU or UKCA markets. The standard commercial temperature grade (0°C to 70°C) suits indoor networking equipment, industrial control panels, and IoT gateway designs that do not require extended-temperature qualification.
Two-port switch with integrated PHY — BOM consolidation
This is a two-port 10/100 Ethernet switch with an integrated 10/100 Base-T/TX PHY on each port. The 16-bit host interface connects directly to an MCU or processor local bus, eliminating the need for a separate MAC-to-PHY bridge chip. The I²C interface provides management access for PHY configuration and status monitoring without consuming host GPIOs.
128-VTQFP footprint and thermal design
Housed in a 128-VTQFP (14x14 mm body, 0.4 mm pitch) with an exposed paddle. The Tray packaging indicates this is the standard production format — not tape-and-reel. For high-volume pick-and-place, verify that the tray-to-reel transfer is supported by your contract manufacturer or order the reel variant if Microchip offers one.
As an active Microchip part, the LAN9311-NU is available through authorized distribution and independent channels.