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GATEMODE GM490E
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- GATEMODE GM490E
- Type
- GATEMODE
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- GATEMODE
- Electronic Component
- GM490E
- Electronic Component
- 1
- Package
- SOP-8
- Type
- Transceiver
- Electronic Component
- RS-485 / RS-422IC
- Electronic Component
- 0.25g
- Electronic Component
- 256
- Electronic Component
- 1
- Electronic Component
- BM0264228272
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 3V~5.5V
- Receiver
- 1
- Data
- 1Mbps
- Communication
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
GM490E RS-485/RS-422收发器产品概述
一、核心基础参数梳理
GM490E是一款单驱动器+单接收器的RS-485/RS-422接口芯片，基础参数覆盖工业级应用的核心需求：
- 通讯模式：支持全双工（RS-422）与半双工（RS-485，需外部控制使能）；
- 工作电压：3V~5.5V宽电压范围，适配3.3V/5V主流MCU系统，无需额外电平转换；
- 数据速率：最高1Mbps，满足常规工业数据采集、设备组网的速率要求；
- 节点容量：最大支持256个总线节点并联，负载能力强，可构建大规模设备网络；
- 静电防护：±15kV（人体模型HBM），有效抵御现场静电干扰；
- 工作温度：-40℃~+85℃工业级温宽，适应高低温复杂环境；
- 静态功耗：典型值600uA，低功耗特性适合电池供电或低功耗系统。
二、关键性能优势解析
GM490E针对工业场景的可靠性与兼容性需求，具备以下核心优势：
- 全双工灵活适配：同时兼容RS-422全双工（无需切换收发）与RS-485半双工（通过DE/RE引脚控制），满足不同组网场景；
- 强抗干扰设计：差分传输架构天然抑制共模干扰，结合±15kV ESD保护，可在电磁环境复杂的车间、户外稳定工作；
- 低功耗与宽电压：600uA静态电流无需额外电源管理，3V~5.5V电压覆盖多数嵌入式系统，简化硬件设计；
- 高节点扩展性：256节点支持工业生产线的传感器、执行器联网，无需额外总线扩展；
- 工业级可靠性：-40℃~+85℃温宽通过1000次循环测试，满足 harsh 环境长期运行要求。
三、典型应用场景
GM490E的特性使其广泛适配以下场景：
- 工业自动化：PLC与远程I/O模块、温度/压力传感器组网，支持多节点数据采集与控制；
- 楼宇自控：HVAC（暖通空调）设备、安防摄像头、门禁系统联网，适应室内外温湿度变化；
- 远程数据采集：环境监测站（气象/水质）、智能电表/水表抄表系统，低功耗适合电池供电的野外节点；
- 智能家居：家电（空调/灯光）集中控制，宽电压适配不同品牌MCU；
- 安防监控：NVR与网络摄像头远距离传输，抗干扰能力满足复杂布线环境。
四、封装与引脚配置
GM490E采用标准SOP-8封装（尺寸5.2mm×6.0mm），布局紧凑便于PCB设计，引脚功能符合行业通用标准：
引脚 功能说明 VCC 电源输入（3V~5.5V） GND 接地 DI TTL/CMOS数据输入 RO TTL/CMOS数据输出 DE 驱动使能（高电平有效） RE 接收使能（低电平有效） A 差分正信号（RS-485/422） B 差分负信号（RS-485/422） 引脚可直接替换同类SOP-8封装芯片，降低设计成本。五、品牌与可靠性保障
GM490E由国内半导体厂商GATEMODE（捷茂微） 出品，该品牌专注工业级接口芯片研发，产品通过：
- ESD测试：符合IEC 61000-4-2标准（±15kV接触放电）；
- 老化测试：85℃/85%RH环境下1000小时无性能衰减；
- 供货保障：批量稳定供货，技术支持完善，适合工业项目批量应用。
GM490E以高可靠性、低功耗与宽适配性，成为工业组网、数据采集等场景的实用选择。
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