The RTL8305SC-LF is an Ethernet IC manufactured by Realtek. It is a low-power, low-cost 10/100Base-T transceiver which supports IEEE802.3u specifications. It is available in PQFP-128 package form, and is compliant with RoHS (Restriction of Hazardous Substances). It is designed for applications such as home gateways, set-top boxes, automatic meters, Ethernet bridges, and industrial applications. It supports 10/100Base-T applications and is able to run full or half-duplex mode. It supports LED outputs for controlling LED devices, provides low power dissipation, supports IEEE802.3x flow control, and is compatible with existing 100Base-TX systems.