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ISL4485 - 15kV ESD Protected/ 20Mbps/ 5V/ Low Power/ RS-485/RS-422 Transceiver

General Description

PIN RO RE DE DI GND A/Y FUNCTION Receiver output: If A > B by at least 0.2V, RO is high; If A < B by 0.2V or more, RO is low; RO = High if A and B are unconnected (floating).

Receiver output enable.

RO is enabled when RE is low; RO is high impedance when RE is high.

Key Features

  • High Data Rates.
  • . up to 20Mbps.
  • RS-485 I/O Pin ESD Protection.
  • ±15kV HBM - Class 3 ESD Level on all Other Pins.
  • . >7kV HBM.
  • Operates from a Single +5V Supply (10% Tolerance).
  • 1 Unit Load Allows up to 32 Devices on the Bus.
  • Low Quiescent Current.
  • . 590µA.
  • -7V to +12V Common Mode Input Voltage Range.
  • Three State Rx and Tx Outputs.
  • 3.

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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.

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® ISL4485E Data Sheet December 2003 FN6049.1 ±15kV ESD Protected, 20Mbps, 5V, Low Power, RS-485/RS-422 Transceiver The Intersil ISL4485E is a high speed, BiCMOS 5V powered, single transceiver that meets 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 device is specified for 10% tolerance supplies (4.5V to 5.5V). The excellent differential output voltage coupled with high drive-current output stages allow 20Mbps operation over twisted pair networks up to 450 feet in length. The 25kΩ receiver input resistance presents a “single unit load” to the RS-485 bus, allowing up to 32 transceivers on the network.