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文档

文档标题 language 类型 文档格式 文件大小 日期
应用指南 & 白皮书
An Overview of Electromagnetic and Lightning Induced Voltage Transients 应用文档 PDF 677 KB
R15AN0002: RS-485 Transient Protection in Industrial DC-Supply Buses Rev.1.00 应用文档 PDF 178 KB
How to Simplify Industrial PC Interfaces English 白皮书 PDF 1010 KB
如何简化工业PC接口 English 白皮书 PDF 987 KB
RS-485收发器教程 English 白皮书 PDF 474 KB
AN1991: Isolating RS-485 Interfaces with High-Speed Digital Optocouplers 应用文档 PDF 513 KB
AN1990: RS-485 Transceivers in J1708 Physical Layer Applications of Heavy Duty Vehicles 应用文档 PDF 826 KB
AN1987: RS-485 External Fail-Safe Biasing for Isolated Long Haul Buses 应用文档 PDF 443 KB
AN1986: External Fail-Safe Biasing of RS-485 Networks 应用文档 PDF 582 KB
AN1985: Transient Protection for the Standard RS-485 Transceiver: ISL3152E 应用文档 PDF 335 KB
AN1989: RS-422 vs RS-485: Similarities and Key Differences 应用文档 PDF 440 KB
AN1976: Important Transient Immunity Tests for RS-485 Networks 应用文档 PDF 338 KB
AN1977: Transient Voltage Suppressors: Operation and Features 应用文档 PDF 365 KB
AN1978: Surge Protection for Intersil's Standard RS-485 Transceivers 应用文档 PDF 369 KB
AN1979: Surge Protection simplified with Intersil's Overvoltage Protected (OVP) Transceivers 应用文档 PDF 500 KB
AN1980: Ground Potential Differences: Origin and Remedies 应用文档 PDF 375 KB
AN1378: Implementing a Three Pin, Half-Duplex, Dual Protocol (RS-232/RS-485) Interface Using The ISL81387 or ISL41387 应用文档 PDF 339 KB
其他
R15ZZ0002: Calculating the Power Dissipation of an RS-485 Driver 其他 PDF 150 KB
R15ZZ0001: Calculating the Power Dissipation of an RS-422 Driver 其他 PDF 165 KB
TB506: Functional Principles of RS-485 Drivers and Receivers 其他 PDF 156 KB
TB509: Detecting Bus Signals Correctly with Failsafe Biased RS-485 Receivers 技术摘要 PDF 300 KB
TB513: Designing a 3-Wire, Half-Duplex, Dual Protocol Interface Using the ISL3330 and ISL3331 技术摘要 PDF 328 KB
TB511: The Unit Load Concept 其他 PDF 253 KB
TB508: Dual Protocol Applications: Programmable vs Standard Transceivers 其他 PDF 359 KB
TB507: Dual Protocol Transceivers Simplify Interface Design 其他 PDF 580 KB