WMSIC Electronic Components

RENESAS ISL83490IBZ-T ISL83490IBZ

ModelISL83490IBZ-T
PackageSOIC-8
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RENESAS ISL83490IBZ-T
Type
RENESAS
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
ISL83490IBZ-T
Electronic Component
1
Package
SOIC-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.106g
Electronic Component
32
Electronic Component
1
Electronic Component
BM0257437671
Operating Temperature
40℃~+85℃
Operating Voltage
3V~3.6V
Receiver
1
Data
10Mbps
Communication
Electronic Component

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

ISL83490IBZ-T 产品概述

一、主要特性

ISL83490IBZ-T 为 RENESAS(瑞萨)系列的双向差分收发器,配置为 1 路驱动器(Driver)和 1 路接收器(Receiver),支持 RS-422/RS-485 通讯标准。器件工作电压范围为 3.0V 至 3.6V,支持全双工通讯,最高数据速率可达 10 Mbps,节点支持最多 32 节点,工作温度范围为 -40℃ 至 +85℃,静态工作电流典型值为 650 µA。封装为标准 SOIC-8,便于在工业与嵌入式应用中替换与布局。

二、性能概述

该收发器面向需要中高速、可靠差分通讯的应用场景。10 Mbps 的数据率可满足多种实时控制与测量系统的传输需求;全双工结构允许同时进行发送与接收,适用于点对点或多点拓扑。低静态电流(650 µA)有利于降低系统待机功耗,在需长时间运行的远程设备中尤为重要。工作电压贴近常见 3.3V 供电,便于与 MCU、FPGA 等器件直接接口。

三、功能与工作模式

器件兼容 RS-422 与 RS-485 差分信号标准,支持差分驱动与差分接收。典型应用时需考虑终端匹配电阻和总线偏置电阻以保证信号完整性与确定空闲状态。在多节点总线结构中,合理配置发送/接收方向控制与总线仲裁逻辑,可以发挥全双工与多节点支持的优势。具体故障保护、失效检测或自恢复功能请参考器件完整数据手册。

四、典型应用场景

  • 工业自动化现场总线、PLC 通信接口
  • 过程控制与远程 I/O 单元
  • 楼宇自控与安防监控系统
  • 仪器仪表与数据采集系统
  • 嵌入式控制器与网关设备

五、封装与电气注意事项

ISL83490IBZ-T 提供 SOIC-8 封装,适合波峰/回流焊工艺。建议 PCB 布局中将旁路电容(常用 0.1 µF)靠近 VCC 引脚放置,差分对走线匹配阻抗并尽量缩短走线长度以降低串扰。总线两端应按需配置终端电阻(例如 120 Ω)并在多节点系统中考虑偏置电阻以防止浮空。设计时应留意电磁兼容(EMC)与静电防护(ESD)措施。

六、选型与设计建议

在选型时确认系统所需数据率、节点数与供电电压是否与 ISL83490IBZ-T 匹配;若系统需更高容错、内置故障保护或更宽的电压/温度范围,可参考瑞萨同系列或其它型号。系统级设计建议包括:差分对阻抗控制、终端与偏置策略、发送驱动的占空比与上升/下降时间管理、以及必要的热设计与制造可焊性验证。

如需更详细的引脚定义、电气特性曲线、热参数或典型应用电路,请参阅瑞萨官方数据手册与参考设计文档,以确保在具体应用中获得最佳可靠性与性能。

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