SP485R

SP485R 1/10th Unit Load RS-485 Transceiver FEATURES Allows Over 400 Transceivers On A Transmission Line (1/10th Unit Load) High Impedance on Receiver Inputs (RIN = 150kΩ typical) Half-Duplex Configuration Consistent With Industry Standard Pinout -7V to +12V Common Mode Input Voltage Range Low Power Consumption (250mW) Separate Driver and Receiver Enable DESCRIPTION The SP485R is a pin-to-pin equivalent to our existing SP485 product and offers a high receiver input impedance. The higher receiver input impedance allows for connecting over 400 transceivers on a single transmission line without degrading the RS-485 driver signal. The device is packaged in a 8-pin plastic DIP or 8-pin narrow SOIC. Figure 1. Typical Application Circuit Exar Corporation 48720 Kato Road, Fremont CA, 94538 510-668-7017 www.exar.com  SP485R_100_072309 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other...