The DS34C87N is a 16-pin DIP (Dual Inline Package) RoHS (Restriction of Hazardous Substances) compliant integrated circuit (IC), manufactured by HGSEMI, which is a non-inverting transceiver with RS-485/RS-422 protection and communication capability. This IC is designed to be used in a wide range of communication systems, such as automation systems, robotics, HVAC, and home and building control. The IC supports a wide supply voltage range of 4.5V to 5.5V and comes with robust ESD (electrostatic discharge) protection of ±8KV for its I/O (input/output) pins. Communication is possible at data transfer speeds up to 250Kbps, and the device supports up to 128 nodes on a network. The DS34C87N ICs is designed to support full-duplex communication in both the transmit and receive modes.