WMSIC Electronic Components

GATEMODE GM232ESA

ModelGM232ESA
PackageSOP-16
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 25+

Available for RFQ

Technical data

Product details

16 specifications

Core information

Product name
GATEMODE GM232ESA
Type
GATEMODE
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GATEMODE
Electronic Component
GM232ESA
Electronic Component
1
Package
SOP-16
Electronic Component
RS232IC
Electronic Component
0.345g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0264353244
Data
500Kbps
Electronic Component
Electronic Component
Electronic Component
2500

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

GM232ESA RS-232端口扩展芯片产品概述

GM232ESA是捷茂微(GATEMODE)推出的一款高性价比多通道RS-232端口扩展芯片,采用SOP-16封装,专为解决嵌入式系统串口资源不足问题设计,支持双向高速数据传输,适用于工业控制、通信设备等多种场景。

一、产品定位与核心价值

GM232ESA聚焦串口资源扩展核心需求,针对单MCU/SoC仅提供1-2个UART接口的痛点,通过集成多通道RS-232收发器,实现系统串口数量的灵活扩展。其核心价值体现在:

  • 低成本:单芯片实现多通道扩展,减少外围器件数量;
  • 高可靠:符合RS-232标准,内置抗干扰设计;
  • 易集成:SOP-16封装紧凑,适配主流贴片工艺;
  • 宽适配:支持3.3V/5V双电源,兼容不同系统电压。

二、关键性能参数

GM232ESA的核心性能参数满足多数串口通信场景需求,关键指标如下:

参数项 规格值 数据速率范围 1200bps ~ 500Kbps 通道数量 2个独立RS-232收发通道 供电电压 3.3V ±0.3V / 5V ±0.5V 工作温度范围 -40℃ ~ +85℃(工业级) 典型工作电流 <10mA(全通道工作) 静态电流(睡眠模式) <1μA ESD防护等级 ±15kV(HBM) 兼容标准 EIA/TIA-232-F

三、核心功能特性

  1. 多通道并行通信:集成2个独立RS-232收发器,支持同时收发数据,互不干扰;
  2. 宽波特率支持:覆盖1200bps到500Kbps的常用波特率,满足低速传感采集到高速数据传输需求;
  3. 双电源兼容:无需额外电平转换电路,直接适配3.3V或5V系统,降低设计复杂度;
  4. 低功耗设计:支持睡眠模式(通过EN引脚控制),待机时静态电流低至1μA,适合电池供电设备;
  5. 抗干扰与防护:内置ESD保护电路,可承受±15kV人体模式静电,适应工业现场的电磁干扰环境;
  6. 简化外围电路:仅需电源滤波电容即可工作,无需外部驱动管,减少BOM成本与PCB空间占用。

四、封装与引脚说明

GM232ESA采用SOP-16(150mil窄体) 封装,引脚间距1.27mm,适配标准贴片焊接工艺,关键引脚功能如下:

  • 电源与地:VCC(引脚16,供电)、GND(引脚8,地);
  • 收发通道:TX1(引脚1)、RX1(引脚2)、TX2(引脚15)、RX2(引脚14);
  • 控制引脚:EN(引脚3,使能控制,高电平有效)、RTS1(引脚4,请求发送)、CTS1(引脚5,清除发送)、RTS2(引脚13,请求发送)、CTS2(引脚12,清除发送);
  • 其他:引脚6、7、9、10、11为NC(空脚),无需连接。

五、典型应用场景

GM232ESA的高可靠性与宽适配性,使其广泛应用于以下场景:

  1. 工业自动化:PLC、HMI的串口扩展,连接温度传感器、伺服电机等外设;
  2. 通信设备:路由器、交换机的调试/控制台接口扩展,支持多设备远程管理;
  3. 消费电子:POS机、智能收款终端的多串口通信,连接打印机、扫码枪;
  4. 安防监控:DVR/NVR的串口扩展,连接云台摄像机、报警探测器;
  5. 医疗设备:小型监护仪、输液泵的串口数据传输,实现设备间通信。

六、应用注意事项

为确保GM232ESA稳定工作,需注意以下几点:

  1. 电源滤波:在VCC与GND之间并联0.1μF陶瓷电容,减少电源噪声;
  2. 波特率匹配:收发两端需设置相同波特率(500Kbps以内),避免数据丢包;
  3. 静电防护:焊接时使用防静电烙铁,操作人员需佩戴防静电手环;
  4. 布线要求:RS-232信号线远离强干扰源(如电源、电机),必要时使用屏蔽线;
  5. 使能控制:未使用的通道可通过EN引脚置低进入睡眠模式,降低功耗。

GM232ESA凭借高性价比、宽适配性与稳定性能,成为嵌入式系统串口扩展的优选方案,可满足多数工业与消费电子场景的串口通信需求。

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