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.

特性

  • 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

应用

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

description文档

文档标题 language 类型 文档格式 文件大小 日期
star ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Datasheet 数据手册 PDF 1.02 MB
R15AN0002: RS-485 Transient Protection in Industrial DC-Supply Buses Rev.1.00 应用文档 PDF 178 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
How to Simplify Industrial PC Interfaces English 白皮书 PDF 1010 KB
PA16061 - Introduce New T-type End Plug for n-SOIC rail (packing tube) Product Advisory PDF 106 KB
PCN20017 - Alternate bond wire material and assembly facility of the listed Renesas nSOIC packaged products 产品变更通告 PDF 266 KB
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II 产品变更通告 PDF 398 KB
PCN12068 - SOIC w/ Copper Bond Wire @ ASECL as Alternate Assembly Site 产品变更通告 PDF 108 KB
Analog ICs Brochure 日本語 手册 PDF 4.20 MB
TB506: Functional Principles of RS-485 Drivers and Receivers 其他 PDF 156 KB
TB511: The Unit Load Concept 其他 PDF 253 KB
TB505: Understanding the Difference between HBM and IEC 61000-4-2 ESD Immunity 其他 PDF 254 KB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
TB509: Detecting Bus Signals Correctly with Failsafe Biased RS-485 Receivers 技术摘要 PDF 300 KB

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文档标题 language 类型 文档格式 文件大小 日期
ISL83483 IBIS Model Model - Other IBS 40 KB