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RENESAS ISL3179EIUZ-T ISL3179EIUZ
Configuration
1 options
Configuration
23+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RENESAS ISL3179EIUZ-T
- Type
- RENESAS
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RENESAS
- Electronic Component
- ISL3179EIUZ-T
- Electronic Component
- 1
- Package
- MSOP-8
- Type
- Transceiver
- Electronic Component
- RS-485 / RS-422IC
- Electronic Component
- 0.001g
- Electronic Component
- 160
- Electronic Component
- 1
- Features
- Tx / Rx;;;; Low Power
- Electronic Component
- BM0257491083
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 3.3V~3.6V
- Receiver
- 1
- Data
- 40Mbps
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ISL3179EIUZ-T 产品概述
ISL3179EIUZ-T 是瑞萨（RENESAS）推出的一款单驱动器、单接收器的半双工差分收发器，适用于 RS-422 / RS-485 总线接口，封装为 MSOP-8。该器件以 3.3V 系统为工作基准，针对工业级通信场景进行优化，提供可靠的高速差分通信能力与低功耗特性。
一、主要参数与功能亮点
- 类型：半双工收发器（1 驱动器 / 1 接收器）
- 通讯标准：RS-422 / RS-485 兼容
- 工作电压：3.3V ~ 3.6V，适配常见 3.3V 嵌入式平台
- 数据速率：最高 40 Mbps，满足高速工业与仪表数据传输需求
- 总节点数：最多支持 160 节点（适用于大规模网络拓扑）
- 静态电流：2.6 mA（空闲态低功耗，利于节能设计）
- 工作温度：-40℃ ~ +85℃（工业级温度范围）
- ESD 抗扰度：±16.5 kV（人体模型），提高现场可靠性
- 封装：MSOP-8（节省 PCB 面积，适合密集布局）
二、典型应用场景
- 工业自动化总线（PLC、I/O 扩展器）
- 楼宇自动化与安防通信
- 仪器仪表与数据采集系统
- 电机控制与运动控制网络
- 现场总线、长距离差分通信链路
三、设计与布局建议
- 终端匹配：在总线两端采用合适阻值的差分终端电阻（常见 100~120Ω），以减少反射并保证信号完整性。
- 偏置网络：半双工拓扑下建议加装偏置电阻或上拉/下拉电阻，确保空闲总线具有确定的差分电平（防止总线悬空引起误触发）。
- 差分布线：保持 A/B 成对布线、长度一致并靠近走线，避免与高速时钟线平行走线以减小时延和干扰。
- EMI 与抑制：如应用环境存在浪涌或共模干扰，建议在器件近端增加共模电感或 TVS 等防护器件，结合去耦电容优化电源完整性。
- 方向控制：由于为半双工器件，需要外部控制驱动使能（DE/RE）实现发送与接收的切换；如需自动方向管理，可在系统端实现方向检测或选择带自动方向控制的收发器。
四、可靠性与封装
MSOP-8 小封装有助于在 PCB 上节省空间，适合嵌入式与模块化设计。器件工作温度覆盖工业级范围，且具有较高的静电抗扰度，适用于要求苛刻的现场应用。静态电流 2.6 mA 有利于降低空闲功耗，适配需长时间待机的系统。
五、使用注意事项
- 请严格按照推荐工作电压范围供电，避免长时间超出 3.3V~3.6V 的范围。
- 在高节点数拓扑（接近 160 节点）下，请评估总线容抗、终端匹配与偏置，以确保总线稳定性。
- 设计 PCB 时注意电源旁路、差分对走线及器件 GND 处理，提升抗干扰与信号完整性。
- 如需卷带包装或贴片装配，可在订购时确认后缀 -T（常用于卷带/盘带包装）以便于自动化生产。
ISL3179EIUZ-T 在保持低功耗与工业级可靠性的同时，提供高达 40 Mbps 的差分通信能力与高节点支持，是面向大规模总线与高速现场通信应用的理想选择。
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