The GM485E is a serial communications transceiver IC manufactured by GATEMODE. It has four differential pairs and built-in support for standard RS-485 and RS-422 communications protocols. It has an operating speed of 500kbps and is designed to operate between 4.75V and 5.25V. The IC is packaged in an 8-pin SOP configuration, meeting RoHS standards. The device is capable of using the four differential pairs to support a single full-duplex channel, two half-duplex channels, or four independent single-color receivers or drivers. Additionally, the company also provides related and supportive application notes available online.