1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers

These Intersil RS-485/RS-422 devices are “fractional” unit load (UL), BiCMOS, 5V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Unlike competitive devices, this Intersil family is specified for 10 tolerance supplies (4.5V to 5.5V).

Features

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

? Specified for 10 Tolerance Supplies

? Class 3 ESD Protection (HBM) on all Pins. . . . . . . . >7kV

? High Data Rate Version (ISL81487). . . . . . . up to 5Mbps

? Slew Rate Limited Versions for Error Free Data

Transmission (ISL8487, ISL81483) . . . . . . .up to 250kbps

? Low Current Shutdown Mode (Except ISL81487) . . 0.5μA

? Low Quiescent Supply Current:

- ISL8487, ISL81483. . . . . . . . . . . . . . . . . . 145μA (Max.)

- ISL81487 . . . . . . . . . . . . . . . . . . . . . . . . . 420μA (Max.)

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

? Three State Rx and Tx Outputs

? 30ns Propagation Delays, 5ns Skew (ISL81487)

? Half Duplex Pinouts

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

? Current Limiting and Thermal Shutdown for Driver

Overload Protection

? Drop-In Replacements for: MAX487 (ISL8487); MAX1483

(ISL81483); MAX1487, LMS1487 (ISL81487)

? 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