Many applications need both an RS-232 and RS-485 serial port. The dual protocol devices integrate both transceivers into a single package. The single-port device can be programmed for either interface. The two-port configuration is very flexible as each port can be either protocol.

Both 3.3V and 5V supply options are available in SOIC and QFN package. The QFN package has additional features including a logic supply pin (VL) and selectable RS-485 data rates. The RS-232 data rate can operate up to 400kbps.

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Product Protocol Description Datasheet
ISL41334 Multiprotocol RS-485/422 and RS-232 ±15kV ESD Protected, 5V, Two Port, Dual Protocol (RS-232/RS-485) Transceivers pdf_icon_for_table.png

descriptionドキュメント

タイトル language 分類 形式 サイズ 日付
アプリケーションノート、ホワイトペーパー
An Overview of Electromagnetic and Lightning Induced Voltage Transients アプリケーションノート PDF 677 KB
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
Dual Protocol Transceivers Ease the Design of Industrial Interfaces 简体中文 ホワイトペーパー PDF 918 KB
RS-485 Transceiver Tutorial 简体中文 ホワイトペーパー PDF 246 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
AN1378: Implementing a Three Pin, Half-Duplex, Dual Protocol (RS-232/RS-485) Interface Using The ISL81387 or ISL41387 アプリケーションノート PDF 339 KB
その他資料
R15ZZ0002: Calculating the Power Dissipation of an RS-485 Driver その他資料 PDF 150 KB
R15ZZ0001: Calculating the Power Dissipation of an RS-422 Driver その他資料 PDF 165 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
TB513: Designing a 3-Wire, Half-Duplex, Dual Protocol Interface Using the ISL3330 and ISL3331 技術概要 PDF 328 KB
TB511: The Unit Load Concept その他資料 PDF 253 KB
TB508: Dual Protocol Applications: Programmable vs Standard Transceivers その他資料 PDF 359 KB
TB507: Dual Protocol Transceivers Simplify Interface Design その他資料 PDF 580 KB