概览

描述

The Intersil ISL4485E is a high speed, BiCMOS 5V powered, single transceiver that meets both the RS-485 and RS-422 standards for balanced communication. Each driver output/receiver input is protected against ±15kV ESD strikes, without latch-up. Unlike competitive devices, this Intersil device is specified for 10% tolerance supplies (4. 5V to 5. 5V). The excellent differential output voltage coupled with high drive-current output stages allow 20Mbps operation over twisted pair networks up to 450 feet in length. The 25kΩ receiver input resistance presents a single unit load to the RS-485 bus, allowing up to 32 transceivers on the network. Receiver (Rx) inputs feature a fail-safe if open design, which ensures a logic high Rx output if Rx inputs are floating. 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 half duplex configuration multiplexes the Rx inputs and Tx outputs to allow transceivers with Rx and Tx disable functions in 8 lead packages.

特性

  • Pb-Free Available (RoHS Compliant)
  • High Data Rates up to 20Mbps
  • RS-485 I/O Pin ESD Protection ±15kV HBM
  • Class 3 ESD Level on all Other Pins >7kV HBM
  • Operates from a Single +5V Supply (10% Tolerance)
  • 1 Unit Load Allows up to 32 Devices on the Bus
  • Low Quiescent Current 700µA
  • -7V to +12V Common Mode Input Voltage Range
  • Three State Rx and Tx Outputs
  • 30ns Propagation Delays, 2ns Skew
  • Current Limiting and Thermal Shutdown for driver Overload Protection

应用

应用

  • SCSI "Fast 20" Drivers and Receivers
  • Data Loggers
  • Security Networks
  • Building Environmental Control Systems
  • Industrial/Process Control Networks
  • Level Translators

文档

文档标题 类型 日期
PDF729 KB
数据手册
PDF1023 KB
应用文档
PDF207 KB
应用文档
PDF474 KB
应用文档
PDF178 KB
应用文档
PDF513 KB
应用文档
PDF826 KB
应用文档
PDF443 KB
应用文档
PDF582 KB
应用文档
PDF440 KB
应用文档
PDF338 KB
应用文档
PDF365 KB
应用文档
PDF375 KB
应用文档
PDF4.91 MB
手册
PDF156 KB
其他
PDF253 KB
其他
PDF254 KB
其他
PDF106 KB
Product Advisory
PDF266 KB
产品变更通告
PDF398 KB
产品变更通告
PDF108 KB
产品变更通告
PDF300 KB
技术摘要
PDF1010 KBEnglish
白皮书

设计和开发

模块

模块

Title Type Date
模型 - IBIS

支持