WMSIC Electronic Components

RENESAS ISL8491EIBZ-T ISL8491EIBZ

ModelISL8491EIBZ-T
Package14-SOIC
BrandRENESAS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RENESAS ISL8491EIBZ-T
Type
RENESAS
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
ISL8491EIBZ-T
Electronic Component
1
Package
14-SOIC
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.001g
Electronic Component
32
Electronic Component
1
Features
Tx / Rx
Electronic Component
BM0264679042
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~5.5V
Receiver
1
Data
10Mbps

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ISL8491EIBZ-T 全双工RS422/RS485收发器产品概述

ISL8491EIBZ-T是瑞萨电子(RENESAS)推出的一款1驱1收全双工RS422/RS485收发器,专为工业级高可靠性通信场景设计,具备宽电压范围、强抗静电能力、低功耗等核心特性,可满足中高速双向数据传输及多节点组网需求,是工业自动化、数据采集等领域的实用型通信接口器件。

一、产品核心特性与定位

该器件兼容RS422和RS485两种主流串行通信协议,采用全双工工作模式(区别于半双工的单向切换通信),支持双向数据同时收发,无需切换收发状态,显著提升通信实时性。其1个差分驱动器+1个差分接收器的紧凑结构,适配单通道双向通信的应用场景,平衡了性能与成本。

二、关键技术参数详解

1. 电源与功耗

  • 工作电压范围:4.5V~5.5V(宽电压覆盖,适配工业电源±10%波动,兼容常见5V供电系统);
  • 静态电流:仅370μA(低功耗设计,适合电池供电的远程监控节点或低功耗工业设备)。

2. 通信性能

  • 数据速率:最高10Mbps(满足中高速数据传输需求,支持短距离实时通信);
  • 节点容量:最大支持32个总线节点(无需额外驱动电路,可实现多设备组网);
  • 全双工模式:支持同时收发,避免半双工的切换延迟,适合实时控制指令与数据反馈的同步传输。

3. 可靠性防护

  • 静电保护:±15kV(人体模型HBM),抗静电能力强,减少现场操作(如插拔设备)中的静电损坏风险;
  • 共模电压范围:支持宽范围共模抑制,适应工业现场的电磁干扰环境。

三、封装与工作环境适应性

  • 封装形式:14引脚SOIC(Small Outline Integrated Circuit)表面贴装封装,尺寸紧凑(典型尺寸约8.65×3.91mm),适合PCB布局紧凑的小型化产品(如PLC模块、通信采集卡);
  • 工作温度范围:-40℃~+85℃(工业级宽温,可适应户外低温、工厂车间高温等恶劣环境,满足工业现场7×24小时稳定工作需求)。

四、典型应用场景

ISL8491EIBZ-T的特性使其广泛适用于以下场景:

  1. 工业自动化控制:PLC与远程I/O模块、传感器(温度/压力/流量)、执行器的组网通信,支持多节点实时数据交互;
  2. 数据采集与监控:工业现场传感器网络的数据上传,远程监控中心的双向指令传输;
  3. 楼宇自动化:HVAC系统、安防监控、智能照明的分布式控制,实现多设备集中管理;
  4. 智能电网:电表集中抄表、配电终端的通信,支持32个电表节点的高速数据采集;
  5. 通信设备:串口扩展卡、短距离数据传输模块的RS485/RS422接口转换,适配不同通信协议。

五、产品优势与价值总结

  • 高可靠性:工业级宽温+±15kV ESD防护,降低恶劣环境下的设备故障率;
  • 高效通信:全双工+10Mbps速率,满足实时双向传输需求,提升系统响应速度;
  • 低功耗:370μA静态电流,延长电池供电设备的工作时间,减少系统能耗;
  • 组网灵活:32节点容量,适配不同规模组网,无需额外驱动电路;
  • 紧凑设计:14-SOIC封装,节省PCB空间,适合小型化产品开发。

ISL8491EIBZ-T凭借平衡的性能与可靠性,成为工业通信、数据采集等领域的高性价比收发器选择,可有效简化系统设计并提升通信稳定性。

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