These Intersil RS-485, RS-422 devices are ESD protected, 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).

The ISL8483E utilizes slew rate limited drivers which reduce EMI, and minimize reflections from improperly terminated transmission lines, or un-terminated stubs in multidrop and multipoint applications.

Features

• Pb-Free Available (RoHS Compliant)

• Military and Extended Industrial Temperature Options (+125°C)

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

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

• Specified for 10 Tolerance Supplies

• High Data Rate Version (ISL8485E) . . . . . up to 10Mbps

• Slew Rate Limited Version for Error Free Data

Transmission (ISL8483E) . . . . . . . . . . . . . up to 250kbps

• Single Unit Load Allows up to 32 Devices on the Bus

• 1nA Low Current Shutdown Mode (ISL8483E)

• Low Quiescent Current:

- 160µA (ISL8483E)

- 500µA (ISL8485E)

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

• Three State Rx and Tx Outputs

• 30ns Propagation Delays, 5ns Skew (ISL8485E)

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

• Current Limiting and Thermal Shutdown for driver Overload Protection

Applications

• Factory Automation

• Security Networks

• Building Environmental Control Systems

• Industrial/Process Control Networks

• Level Translators (e.g., RS-232 to RS-422)

• RS-232 “Extension Cords”