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ISL8491 - RS-485/RS-422 Transceivers

Download the ISL8491 datasheet PDF. This datasheet also covers the ISL8483 variant, as both devices belong to the same rs-485/rs-422 transceivers family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • Specified for 10% Tolerance Supplies.
  • Class 3 ESD Protection (HBM) on all Pins.
  • . . . >7kV.
  • High Data Rates.
  • . . up to 5Mbps.
  • Slew Rate Limited Versions for Error Free Data Transmission at 250kbps (ISL8483, ISL8488, ISL8489).
  • Single Unit Load Allows up to 32 Devices on the Bus.
  • 1nA Low Current Shutdown Mode (ISL8483).
  • Low Quiescent Current: - 160µA (ISL8483, ISL8488, ISL8489) - 500µA (ISL8485.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ISL8483-Intersil.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
® Data Sheet ISL8483, ISL8485, ISL8488, ISL8489, ISL8490, ISL8491 February 28, 2006 FN6046.8 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers The Intersil RS-485/RS-422 devices are 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). The ISL8483, ISL8488, and ISL8489 utilize slew rate limited drivers which reduce EMI, and minimize reflections from improperly terminated transmission lines, or unterminated stubs in multidrop and multipoint applications. Data rates up to 5Mbps are achievable by using the ISL8485, ISL8490, or ISL8491, which feature higher slew rates.