These Renesas RS-485/RS-422 devices are BiCMOS 3. 3V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Unlike competitive devices, this Renesas family is specified for 10% tolerance supplies (3V to 3. 6V). The ISL83483 and ISL83488 use 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 10Mbps are achievable by using the ISL83485, ISL83490, or ISL83491, which feature higher slew rates. Logic inputs (for example, DI and DE) accept signals in excess of 5. 5V, making them compatible with 5V logic families. Receiver (Rx) inputs feature a “fail-safe if open” design, which ensures a logic high output if Rx inputs are floating. All devices present a “single unit load” to the RS-485 bus, which allows up to 32 transceivers on the network. Driver (Tx) outputs are short-circuit protected, even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation becomes excessive. The ISL83488, ISL83490, and ISL83491 are configured for full duplex (separate Rx input and Tx output pins) applications. The ISL83488 and ISL83490 are offered in space saving 8 Ld packages for applications not requiring Rx and Tx output disable functions (for example, point-to-point and RS-422). Half duplex configurations (ISL83483, ISL83485) multiplex the Rx inputs and Tx outputs to provide transceivers with Rx and Tx disable functions in 8 Ld packages.

特長

  • Operate from a Single +3.3V Supply (10% Tolerance)
  • Interoperable with 5V Logic
  • High Data Rates: up to 10Mbps
  • Single Unit Load Allows up to 32 Devices on the Bus
  • Slew Rate Limited Versions for Error Free Data Transmission (ISL83483, ISL83488): up to 250kbps
  • Low Current Shutdown Mode (ISL83483, ISL83485, ISL83491): 15nA
  • -7V to +12V Common Mode Input Voltage Range
  • Three State Rx and Tx Outputs (Except ISL83488, ISL83490)
  • 10ns Propagation Delay, 1ns Skew (ISL83485, ISL83490, ISL83491)
  • Full Duplex and Half Duplex Pinouts
  • Current Limiting and Thermal Shutdown for driver Overload Protection
  • Pb-free available

アプリケーション

  • Factory Automation
  • Security Networks
  • Building Environmental Control Systems
  • Industrial/Process Control Networks
  • Level Translators (eg, RS-232 to RS-422)
  • RS-232 "Extension Cords"

tune製品選択

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descriptionドキュメント

タイトル language 分類 形式 サイズ 日付
データシート
star ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Datasheet データシート PDF 1.02 MB
アプリケーションノート、ホワイトペーパー
R15AN0002: RS-485 Transient Protection in Industrial DC-Supply Buses Rev.1.00 アプリケーションノート PDF 178 KB
How to Simplify Industrial PC Interfaces 简体中文 ホワイトペーパー PDF 920 KB
AN1991: Isolating RS-485 Interfaces with High-Speed Digital Optocouplers アプリケーションノート PDF 513 KB
AN1990: RS-485 Transceivers in J1708 Physical Layer Applications of Heavy Duty Vehicles アプリケーションノート PDF 826 KB
AN1987: RS-485 External Fail-Safe Biasing for Isolated Long Haul Buses アプリケーションノート PDF 443 KB
AN1986: External Fail-Safe Biasing of RS-485 Networks アプリケーションノート PDF 582 KB
AN1985: Transient Protection for the Standard RS-485 Transceiver: ISL3152E アプリケーションノート PDF 335 KB
AN1989: RS-422 vs RS-485: Similarities and Key Differences アプリケーションノート PDF 440 KB
AN1976: Important Transient Immunity Tests for RS-485 Networks アプリケーションノート PDF 338 KB
AN1977: Transient Voltage Suppressors: Operation and Features アプリケーションノート PDF 365 KB
AN1978: Surge Protection for Intersil's Standard RS-485 Transceivers アプリケーションノート PDF 369 KB
AN1979: Surge Protection simplified with Intersil's Overvoltage Protected (OVP) Transceivers アプリケーションノート PDF 500 KB
AN1980: Ground Potential Differences: Origin and Remedies アプリケーションノート PDF 375 KB
PCN / PDN
PCN20017 - Alternate bond wire material and assembly facility of the listed Renesas nSOIC packaged products 製品変更通知 PDF 266 KB
PA16061 - Introduce New T-type End Plug for n-SOIC rail (packing tube) Product Advisory PDF 106 KB
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II 製品変更通知 PDF 398 KB
PCN12068 - SOIC w/ Copper Bond Wire @ ASECL as Alternate Assembly Site 製品変更通知 PDF 108 KB
その他資料
アナログIC & ディスクリート カタログ English カタログ PDF 6.48 MB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
TB506: Functional Principles of RS-485 Drivers and Receivers その他資料 PDF 156 KB
TB509: Detecting Bus Signals Correctly with Failsafe Biased RS-485 Receivers 技術概要 PDF 300 KB
TB511: The Unit Load Concept その他資料 PDF 253 KB
TB505: Understanding the Difference between HBM and IEC 61000-4-2 ESD Immunity その他資料 PDF 254 KB

file_downloadダウンロード

タイトル language 分類 形式 サイズ 日付
モデル
ISL83483 IBIS Model Model - Other IBS 40 KB