MAX3471 Datasheet | Maxim Integrated

Description The MAX3471 half-duplex transceiver is intended for lithium battery-powered RS-485/RS-422 applications. It draws only 1.6µA (typical) supply current from a 3.6V supply with the receiver enabled and the driver disabled. Its wide 2.5V to 5.5V supply voltage guarantees operation over the lifetime of a lithium battery. This device features true fail-safe operation that guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3471 has a 1/8-unit load input resistance. When driver outputs are enabled and pulled above VCC or below GND, internal circuitry prevents battery backcharging. The MAX3471 is available in an 8-pin µMAX package. ____________________________Features o 1.6µA Supply Current with Receiver Enabled o +2.5V to +5.5V Single-Supply Operation o True Fail-Safe Receiver Input o Available in µMAX Package o 1/8-Unit-Load Receiver Input o -7V to +10V mon-Mode Input Voltage Range _______________Ordering Information PART MAX3471CUA MAX3471EUA TEMP. RANGE 0°C to +70°C -40°C to +85°C PIN-PACKAGE 8 µMAX 8 µMAX ________________________Applications Remote Meter Reading Battery-Powered Differential munications Level Translators ___________________Pin Configuration TOP VIEW RO RE DE DI 1 2 3 4 8 VCC B A GND 7 6 5 µMAX Typical Application Circuit VCC DI D DE RO RE R GND REMOTE UNIT DI VCC D DE R A B A GND VCC D DI DE R CENTRAL UNIT RO RE B A GND A R B B D DI RO RE VCC DE VCC 0.1µF RO RE REMOTE UNIT REMOTE UNIT TYPICAL HALF-DUPLEX RS-485 NETWORK ________________________________________________________________ Maxim Integrated Products 1 For free samples & the latest literature: http://.maxim-ic., or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. 1.6µA, RS-485/RS-422, Half-Duplex, Differential Transceiver for Battery-Powered Systems...