ISL32459E Datasheet | Renesas

feature a full fail-safe design that ensures a logic-high Rx output if the Rx inputs are floating, shorted, or on a terminated but undriven (idle) bus. The Rx full fail-safe operation is maintained even when the Rx input polarity is switched (cable invert function on ISL32457E and ISL32459E). The ISL32457E and ISL32459E include a cable invert function that reverses the polarity of the Rx and Tx bus pins in case the cable is misconnected during installation. See Table 1 on page 4 for key features and configurations by device number. Features - Fault protected RS-485 bus pins - - . . . . up to ±60V - Extended mon-mode range- - - - ±20V larger than required for RS-485 - ±15k V HBM ESD protection on RS-485 bus pins - ±4k V IEC61000-4-4 EFT Immunity - Wide supply range - - - - - . 3V to 5.5V - Cable invert pin (ISL32457E and ISL32459E only) corrects for reversed cable connections while maintaining Rx full fail-safe functionality - 1/4 unit load for up to 128 devices on the bus - High transient overvoltage tolerance - - - ±80V - Full fail-safe (open, short, terminated) RS-485 receivers - Choice of RS-485 data rates - - - . . . up to 20Mbps - Low quiescent supply current- - - - . 2.1m A Applications - Utility meters and automated meter reading systems - Air conditioning systems - Security camera networks - Building lighting and environmental control systems - Industrial and process control networks VOLTAGE (V) MON-MODE RANGE (V) A 20 B 15 5 RO VCC =...