WMSIC Electronic Components

XBLW MAX490ESA

ModelMAX490ESA(XBLW)
PackageSOP-8
BrandXBLW
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XBLW MAX490ESA(XBLW)
Type
XBLW
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XBLW
Electronic Component
MAX490ESA(XBLW)
Electronic Component
1
Package
SOP-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.2g
Electronic Component
256
Electronic Component
1
Electronic Component
BM0265621919
Operating Temperature
0℃~+70℃
Operating Voltage
3V~5.5V
Receiver
1
Data
2.5Mbps
Communication
Electronic Component

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

MAX490ESA(XBLW芯伯乐)RS-485/422全双工收发器产品概述

一、产品定位与核心特性

MAX490ESA是XBLW(芯伯乐)推出的兼容MAX490系列的RS-485/422全双工收发器,针对低功耗、多节点、宽电压的通讯需求设计,可实现长距离、双向实时数据传输。产品广泛适配工业自动化、智能家居、物联网网关等场景,兼顾性能与成本优势。

二、关键参数与实际价值

1. 宽电压适配,简化系统设计

工作电压范围为3V~5.5V,兼容3.3V单片机(如STM32)和5V传统系统,无需额外电平转换芯片,直接对接MCU的TTL/CMOS电平,大幅降低电路复杂度与BOM成本。

2. 全双工通讯,支持双向同步传输

内置1个驱动器+1个接收器,独立控制收发,可同时实现数据的上传与下发(如工业现场传感器数据上传+控制指令下发同步),满足实时性要求较高的场景。

3. 多节点支持,构建大型网络

最大支持256个节点,是普通RS-485收发器(128节点)的2倍,可构建分布式网络(如智能家居中控连接数十个智能设备、工业PLC连接远程IO模块),适配复杂拓扑结构。

4. 高速传输,满足实时数据需求

数据速率可达2.5Mbps,比1Mbps速率收发器效率提升150%,可支持低码率高清视频流、实时监测数据(如温度、压力)的快速传输,避免数据延迟。

5. 低功耗设计,延长电池续航

静态电流仅270μA,待机状态下功耗极低,适合电池供电的便携设备(如手持环境监测仪)或低功耗物联网终端,单次充电可支持数天至数周的连续运行。

6. 静电防护,提升系统可靠性

具备**±3kV人体模型(HBM)ESD防护**,符合工业级基本防护标准,可有效避免组装、调试过程中静电对器件的损坏,减少现场故障发生率。

7. 温度范围,适配室内场景

工作温度为0℃~+70℃(商业级),稳定适配办公室、家庭、一般工业厂房等室内环境,满足多数消费电子与轻量工业应用的温度需求。

三、封装与引脚功能

采用SOP-8贴片封装(尺寸5.2mm×6.0mm),体积小巧,适合PCB密集布局,支持自动插入与回流焊工艺,引脚功能清晰:

  • VCC:电源输入(3V~5.5V);
  • GND:地;
  • DI:数据输入(MCU→收发器);
  • RO:数据输出(收发器→MCU);
  • DE:驱动器使能(高电平有效,控制输出);
  • RE:接收器使能(低电平有效,控制输入);
  • A:差分正信号;
  • B:差分负信号。

四、典型应用场景

  1. 工业自动化:PLC与远程IO模块、温度传感器、电机控制器的通讯,利用多节点特性连接数十个现场设备,全双工实现双向数据同步;
  2. 智能家居:中控主机与智能门锁、灯光控制器、环境传感器的网络连接,低功耗特性满足电池供电的智能门锁长期运行;
  3. 物联网网关:边缘计算设备与云端服务器的通讯,2.5Mbps速率支持实时数据上传,宽电压适配不同网关的供电方案;
  4. 安防监控:网络摄像头与NVR的双向数据传输,ESD防护提升抗干扰能力,全双工支持云台控制与视频流同步;
  5. 便携监测设备:手持环境监测仪(温湿度、气体监测)的无线网关扩展,低静态电流延长电池续航,SOP-8封装缩小设备体积。

五、产品优势总结

  • 设计简化:宽电压兼容无需电平转换,SOP-8封装易布局,外围仅需少量电容滤波;
  • 可靠性高:ESD防护、宽电压范围提升抗干扰能力,多节点支持适应复杂网络;
  • 功耗优化:270μA静态电流适合低功耗场景,延长电池寿命;
  • 成本可控:XBLW品牌性价比高,兼容MAX490系列,可直接替换,降低替换成本。

该产品平衡了性能与成本,是工业、消费电子、物联网领域的高性价比RS-485/422收发器选择。

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