Interface & Connectivity

Overview

Description

The ISL3179E and ISL3180E are high ESD protected, 3. 3V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Each device has low bus currents (+220μA/-150μA), so they present a “1/5 unit load” to the RS-485 bus. This allows up to 160 transceivers on the network without violating the RS-485 specification’s 32 unit load maximum, and without using repeaters. Receiver (Rx) inputs feature a “full fail-safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. The ISL3180E is configured for full duplex applications. The ISL3179E half duplex version multiplexes the Rx inputs and Tx outputs to allow a transceiver with an output disable function in 8 Ld packages. Hot plug circuitry ensures that the Tx and Rx outputs remain in a high impedance state while the power supply stabilizes.

Features

  • High ESD protection on RS-485 I/O pins
  • ISL3179E: ±16.5kV IEC61000
  • ISL3180E: ±12kV HBM
  • Class 3 HBM level on all other pins (ISL3179E): >9kV
  • Specified for +125°C operation
  • High data rates: up to 40Mbps
  • 5V tolerant logic inputs
  • 1/5 unit load allows up to 160 devices on the bus
  • Full fail-safe (open, shorted, terminated/undriven) receiver
  • Hot plug - Tx and Rx outputs remain three-state during power-up
  • Low quiescent current: 4mA (max)
  • Low current shutdown mode: 1μA (max)
  • -7V to +12V common-mode input voltage range
  • Three-state Rx and Tx outputs
  • 16/16.5ns (max) Tx/Rx propagation delays; 1.5ns (max) skew
  • Operates from a single +3.3V supply (10% tolerance)
  • Current limiting and thermal shutdown for driver overload protection
  • Pb-free (RoHS compliant)

Applications

  • Motor Controller/Position Encoder Systems
  • Factory Automation
  • Field Bus Networks
  • Security Networks
  • Building Environmental Control Systems
  • Industrial/Process Control Networks

Documentation

Title Type Date
PDF1.27 MB
Datasheet
PDF207 KB
Application Note
PDF352 KB
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
PDF365 KB
Application Note
PDF375 KB
Application Note
PDF559 KB
Application Note
Brochure
PDF2.72 MB日本語
Brochure
PDF1.17 MB
End Of Life Notice
PDF156 KB
Other
PDF253 KB
Other
PDF254 KB
Other
PDF208 KB
Price Increase Notice
PDF161 KB
Product Advisory
PDF106 KB
Product Advisory
PDF363 KB
Product Advisory
PDF178 KB
Product Change Notice
PDF326 KB
Product Change Notice
PDF266 KB
Product Change Notice
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Product Change Notice
PDF294 KB
Product Change Notice
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Product Change Notice
PDF207 KB
Product Change Notice
PDF108 KB
Product Change Notice
PDF248 KB
Product Change Notice
PDF438 KB
Report
PDF188 KB
Technical Brief
PDF300 KB
Technical Brief
PDF920 KB 简体中文
White Paper
PDF246 KB 简体中文
White Paper
PDF624 KB
White Paper

Design & Development

Software & Tools

Software Downloads

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PDF1.17 MB
End Of Life Notice

Models

Models

Title Type Date
IBS34 KB
Model - IBIS

Support