WMSIC Electronic Components

HGSEMI MAX202EIM/TR MAX202EIM

ModelMAX202EIM/TR
PackageSOP-16
BrandHGSEMI
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
HGSEMI MAX202EIM / TR
Type
HGSEMI
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
MAX202EIM/TR
Electronic Component
1
Package
SOP-16
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.332g
Electronic Component
1
Electronic Component
BM0264801279
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~5.5V
Receiver
2
Data
120Kbps
Static Current
8mA
Electronic Component
±15kV

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

MAX202EIM/TR 产品概述

一、产品简介

MAX202EIM/TR(华冠 HGSEMI 生产)是一款符合 TIA/EIA-232-F 标准的双路 RS-232 收发器,集成两个线路驱动器、两个线路接收器及双电荷泵电路。器件支持单一 5V 电源(工作电压 4.5V~5.5V),提供异步串口通信所需的电气接口,数据速率最高可达 120 kbps,器件本身具备 ±15kV 的静电放电(ESD)保护能力,适用于工业和嵌入式场景的可靠串口连接。

二、主要特性

  • 双通道收发器:2 个驱动器(T1、T2)+ 2 个接收器(R1、R2)。
  • 单电源工作:4.5V~5.5V(典型 5V)。
  • 内置双电荷泵:产生所需的正负电压以驱动 RS-232 线路。
  • 最高数据速率:120 kbps(适合标准异步通信)。
  • 低静态电流:典型 8 mA(静态工作电流低,利于低功耗系统)。
  • 宽温工作范围:-40℃~+85℃(工业级)。
  • 强 ESD 保护:±15 kV(接触/空气放电级别)。
  • 封装形式:SOP-16,便于贴片生产和自动化装配(TR 表示卷带包装)。

三、典型电气与功能说明

  • 符合 TIA/EIA-232-F 电平与接口规范,支持标准 RS-232 信号电平和断言阈值。
  • 内部电荷泵通常配合外部电容使用,用以生成 ±VCC(V+、V-)电压;推荐将电荷泵电容紧邻器件引脚放置以保证稳定性。
  • 接口引脚包括:T1IN/T2IN、T1OUT/T2OUT、R1IN/R2IN、R1OUT/R2OUT、VCC、GND、V+、V-、C1+/C1-、C2+/C2- 等(依据数据手册对应引脚排列)。

四、典型应用场景

  • 串行端口扩展(PC/嵌入式主板、工业控制器)。
  • 工业设备通讯:PLC、HMI、数据采集模块。
  • POS 终端、条码枪、打印机等外设串口连接。
  • 调制解调器、网关及其它需要 RS-232 电平接口的嵌入式设备。

五、封装与选型建议

  • 封装:SOP-16,适用于标准 SMT 生产线;TR 后缀表明卷带包装,适合批量贴片。
  • 选型时确认工作电压和温度等级是否满足系统要求,若系统需更高速或更低功耗,可比较同类更高等级器件。

六、PCB 布局与使用建议

  • 电荷泵的外部电容应尽量靠近 C1/C2 引脚布局,减少寄生电感和回路面积。
  • VCC 旁加 0.1 μF 去耦电容至地,改善瞬态响应。
  • RS-232 外部线上尽量减短走线,且在有强干扰环境下考虑加序列电阻或共模扼流圈。
  • 接口外壳或连接器处可并联 TVS 或额外的输入浪涌保护以增强系统鲁棒性,尽管器件自身已有 ±15kV ESD 保护。

七、注意事项与可靠性

  • 器件静态电流为典型 8 mA,驱动器切换时会产生动态消耗,系统电源应预留足够裕量。
  • 工作温度范围 -40℃~+85℃,适用于工业级场合;若工作环境超出该范围,应选用相应等级器件。
  • 在高频噪声或长线应用中,建议在接收端加入滤波或隔离措施以防止误触发。
  • 参考华冠(HGSEMI)提供的产品数据手册获取完整的管脚定义、电气参数曲线和推荐外部元件值,以便做最终设计验证。

总结:MAX202EIM/TR 是一款成熟、可靠的工业级 RS-232 双通道收发器,适合多数需要单 5V 电源、具备一定抗静电能力与工业温度范围的串口通信应用。

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