15 kV ESD protected, low power RS-485/RS-422 transceiver, [-40oC, 85oC] temperature range

The ST485E is a low power transceiver for RS-485 and RS-422 communication. Each driver output and receiver input is protected against ±15 kV electrostatic discharge (H.B.M.) (ESD) shocks, without latch-up. These parts contain one driver and one receiver in half duplex configuration.

This transceiver draws 300 µA (typ.) of supply current when unloaded or fully loaded with disabled drivers.

It operates from a single 5 V supply.

Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that place the driver outputs into a high-impedance state.

The ST485E is designed for bi-directional data communications on multipoint bus transmission lines (half-duplex applications).

Key Features

  • Allows up to 256 transceivers on the bus
  • ESD protection: ±15 kV (H.B.M.) ±8 kV (IEC-1000-4-2 contact discharge)
  • Operates from a single 5 V supply
  • 30 ns propagation delay, 5 ns skew
  • Low quiescent current: 300 µA
  • -7 V to 12 V common mode input voltage range
  • Designed for RS-485 interface application
  • 70 mV typical input hysteresis
  • Current limiting and thermal shutdown for driver overload protection
  • Driver maintains high impedance in 3-state or with the power OFF

リソース

技術文書

製品スペック
Description バージョン サイズ
DS2530 DS2530: +/-15 kV ESD protected, low power RS-485/RS-422 transceiver 14.2 698 KB
アプリケーションノート
Description バージョン サイズ
AN1690 AN1690: Fail-safe biasing for ST485EB 2.3 269 KB
AN1348 AN1348: ST485: an RS-485 based interface with lower data bit errors 3.2 112 KB
AN1702 AN1702: ST485EB for e-meter applications 2.3 153 KB

Publications and Collaterals

パンフレット
Description バージョン サイズ
Products and solutions for Smart industry 2.0 5 MB
サポート & コミュニティ

サンプル & 購入

製品型番 パッケージ Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Autoshutdown Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST485EBDR SO-8 Tape And Reel -40 85 - Active 0.82 1000 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
ST485EBDR アクティブSO-8IndustrialEcopack3 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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