WMSIC Electronic Components

GATEMODE GM485E

ModelGM485E
PackageSOP-8
BrandGATEMODE
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
GATEMODE GM485E
Type
GATEMODE
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GATEMODE
Electronic Component
GM485E
Electronic Component
1
Package
SOP-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.32g
Electronic Component
256
Electronic Component
1
Features
Tx / Rx;;; Low Power
Electronic Component
BM0263522021
Operating Temperature
40℃~+85℃
Operating Voltage
3.3V~5V
Receiver
1
Data
500Kbps

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

GM485E RS-485/RS-422收发器产品概述

一、产品定位与基本信息

GM485E是GATEMODE(捷茂微) 推出的一款工业级半双工RS-485/RS-422收发器,核心定位为低成本、高可靠性的多节点通信接口方案。作为单驱动器+单接收器的收发器,它兼容3.3V至5V宽电压范围,支持最高500Kbps数据速率,可同时挂载256个节点,适合中小型工业网络、传感器组网等场景。封装采用SOP-8(4.9×3.9mm),体积紧凑,便于小型化电路集成。

二、核心电气特性

1. 电压与功耗

  • 电源范围:3.3V~5V宽电压兼容,无需额外电平转换电路,可直接匹配主流MCU(如STM32、51单片机)的IO电平;
  • 静态电流:仅155μA,待机状态下功耗极低,适合电池供电或低功耗要求的设备(如无线传感器节点)。

2. 通信性能

  • 模式:半双工通信,单驱动器/接收器配置,支持双向数据传输;
  • 速率:最高500Kbps,可覆盖1200米以内的工业现场通信(速率降低至9600bps时,距离可达1800米);
  • 节点容量:最大支持256个节点组网,满足多设备集中通信需求(如PLC分布式IO、传感器网络)。

3. 可靠性设计

  • 静电防护:内置±15kV高ESD保护(人体模型HBM),有效抵御工业现场的静电冲击(如操作人员接触、设备插拔);
  • 温区范围:-40℃~+85℃工业级温度,可稳定运行于户外、车间等温差较大的场景,无性能衰减。

三、封装与物理参数

GM485E采用SOP-8标准封装,尺寸为4.9mm(长)×3.9mm(宽),引脚间距符合行业规范,便于PCB布线与手工/机器焊接。封装体积小巧,可节省电路板空间,适合紧凑型设备(如工业传感器、小型PLC模块、智能家居网关)的集成。

四、性能优势

  1. 宽电压兼容性:无需针对3.3V或5V系统单独选型,简化物料管理,降低设计成本;
  2. 低功耗设计:静态电流比同类产品低20%以上,适合对功耗敏感的应用;
  3. 高可靠性:±15kV ESD保护+工业级温区,减少现场故障概率,降低维护成本;
  4. 组网灵活性:256节点容量支持大规模设备组网,单收发器即可满足中小型工业网络需求,无需级联额外芯片。

五、典型应用场景

GM485E的特性使其广泛适用于以下场景:

  1. 工业自动化:PLC分布式IO模块、温度/压力传感器网络、电机驱动控制通信;
  2. 智能家居:智能网关与窗帘、灯光、安防设备的组网通信;
  3. 楼宇自控:电梯监控、空调系统、消防报警的集中通信;
  4. 小型通信设备:数据采集器、工业串口服务器的RS-485接口扩展。

六、选型与使用注意事项

  1. 电压匹配:确保电源电压在3.3V~5V范围内,避免过压损坏芯片;
  2. 终端匹配:多节点组网时,需在总线两端并联120Ω终端电阻,抑制信号反射;
  3. 速率与距离:500Kbps速率下建议通信距离≤1200米,长距离通信需降低速率;
  4. 额外防护:虽内置ESD保护,实际应用中建议在总线端增加TVS管,进一步提升抗静电能力。

GM485E以高性价比、宽适应性和工业级可靠性,成为中小型通信网络的优选RS-485收发器方案。

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