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These Intersil RS-485/RS-422 devices are ESD protected, fractional unit load (UL), BiCMOS, 5V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Each driver output/ receiver input is protected against ±15kV ESD strikes, without latch-up. Unlike competitive devices, this Intersil family is specified for 10 tolerance supplies (4.5V to 5.5V).

Features

? RS-485 I/O Pin ESD Protection . . . . . . . . . . ±15kV HBM

- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM

? Fractional Unit Load Allows up to 256 Devices on the Bus

? Specified for 10 Tolerance Supplies

? High Data Rate Version (ISL81487E) . . . . . up to 5Mbps

? Slew Rate Limited Versions for Error Free Data Transmission (ISL8487E, ISL81487L) . . . . .up to 250kbps

? Low Current Shutdown Mode (Except ISL81487E). . . 0.5μA

? Low Quiescent Supply Current:

- ISL8487E, ISL81487L . . . . . . . . . . . . . . . 145μA (Max.)

- ISL81487E . . . . . . . . . . . . . . . . . . . . . . . . 420μA (Max.)

? -7V to +12V Common Mode Input Voltage Range

? Three State Rx and Tx Outputs

? 30ns Propagation Delays, 5ns Skew (ISL81487E)

? Half Duplex Pinouts

? Operate from a Single +5V Supply (10 Tolerance)

? Current Limiting and Thermal Shutdown for Driver Overload Protection

? Pin Compatible Replacements for: MAX487E, (ISL8487E); LTC1487, ADM1487 (ISL81487L); MAX1487E, ST485ER (ISL81487E)

? Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

? High Node Count Networks

? Automated Utility Meter Reading Systems

? Factory Automation

? Security Networks

? Building Environmental Control Systems

? Industrial/Process Control Networks