SP485EMN-L

The SP485EMN-L is a half-duplex transceiver module typically used as an interface between 5 V microprocessors and RS485 data buses. It features low power consumption and robust ESD protection, making it suitable for many industrial applications. The device is available in the form of a 20-pin DIP (dual in-line package) and operates at up to 10 Mbps data rates over up to 4 km distances.The SP485EMN-L has two major components: The driver and the receiver.The driver is responsible for transmitting data from the microprocessor to the bus. It provides both differential inputs for the data and a low logic level for the required bus enable signal. It has a slew rate limit of 40 Mbps and a data rate of up to 10 Mbps. When enabled, it produces a differential current pulse with a peak amplitude of 7 mA.The receiver is responsible for receiving data from the bus and converting it into a logic level which is accepted by the microprocessor. It has a slew rate of 4 Mbps and a data rate of up to 10 Mbps. It has an input sensitivity of -24 mV and an output low level of 0.2 V. It has a very low quiescent current of 5 ?A. Both the driver and receiver feature ESD protection to ensure reliable operation in harsh environments.The SP485EMN-L can be used in a variety of industrial applications such as meters, industrial automation, security systems, and industrial networking. In these applications, it is typically used as a point-to-point or multi-point interface between microprocessors, controllers, and other devices on an RS485 bus. The module has excellent noise immunity, power efficiency, and robust ESD protection, making it an ideal solution for such industrial applications.