WMSIC Electronic Components

ADI/LINEAR MAX3221EEAE+T MAX3221EEAE

ModelMAX3221EEAE+T
PackageSSOP-16-208mil
BrandADI/LINEAR
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
ADI(Analog Devices) / LINEAR MAX3221EEAE+T
Type
ADI/LINEAR
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX3221EEAE+T
Electronic Component
1
Package
SSOP-16-208mil
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.346g
Electronic Component
1
Features
Low Power
Electronic Component
BM0264770956
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V
Receiver
1
Data
250Kbps
Static Current
1uA

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

MAX3221EEAE+T RS-232收发器产品概述

一、产品核心定位与基本属性

MAX3221EEAE+T是ADI旗下Linear产品线推出的单通道RS-232收发器,专为低功耗、宽电压范围的串口通信场景设计。器件集成1个发送器(TX)和1个接收器(RX),采用16引脚SSOP窄体封装,兼具小型化、高可靠性与低功耗特性,可覆盖工业级温度范围,适用于从消费电子到工业控制的多类应用。

二、关键性能参数解析

该器件的核心参数围绕低功耗、宽兼容、高防护三大方向优化,具体如下:

  • 收发通道:1发1收(单串口通信需求);
  • 数据速率:最大250Kbps,满足低速串口通信的典型需求;
  • 工作电压:3V~5.5V,兼容3.3V/5V主流MCU逻辑电平,无需额外电平转换;
  • 静电防护:±15kV人体模型(HBM)、±8kV接触放电、±15kV空气放电,有效抵御现场静电干扰;
  • 电荷泵特性:内置True RS-232电荷泵,无需外部±12V高压电源,仅需4个0.1μF陶瓷电容即可生成RS-232标准电平(±5V以上);
  • 静态电流:关断模式下仅1μA,正常工作时动态电流随速率变化,适合电池供电设备;
  • 温度范围:-40℃~+85℃(工业级),满足恶劣环境下的长期稳定运行。

三、集成特性与技术优势

1. 低功耗设计适配电池场景

静态电流低至1μA(关断模式),可通过EN使能引脚(高电平工作、低电平关断)实现功耗动态管理,尤其适合手持终端、便携式医疗仪器等电池供电设备,延长续航时间。

2. 宽电压兼容简化系统设计

3V~5.5V输入范围覆盖了3.3V(常见MCU)、5V(传统逻辑)等主流电源,无需额外电源转换电路,直接与MCU的TX/RX引脚对接,降低BOM成本与布线复杂度。

3. 内置电荷泵消除高压依赖

传统RS-232器件需外部±12V电源,而MAX3221EEAE+T通过内置电荷泵仅需4个0.1μF陶瓷电容(X7R/X5R材质,10V以上耐压)即可生成RS-232标准电平,电容位置靠近器件引脚可减少寄生电感,提升通信稳定性。

4. 高ESD防护提升系统可靠性

内置±15kV HBM静电保护,可有效抵御现场插拔、静电放电等干扰,配合外部TVS管可进一步增强接口防护,降低器件损坏概率。

四、典型应用场景

1. 工业控制领域

  • PLC远程IO模块、传感器节点的串口数据采集;
  • 小型工业仪器(如温度/压力变送器)的通信接口。

2. 消费电子与手持设备

  • POS终端、手持POS机的RS-232数据传输;
  • 便携式打印机、条码扫描器的串口通信。

3. 医疗设备

  • 小型医疗仪器(血糖仪、监护仪)的串口数据导出;
  • 家用健康设备的通信接口。

4. 汽车电子辅助场景

  • 车载诊断系统(OBD)的低功耗串口接口(-40℃~+85℃温度范围适配车载环境)。

五、封装与可靠性说明

  • 封装类型:16引脚SSOP(窄体小外形封装),尺寸约5.3mm×7.8mm,引脚间距0.65mm,适合表面贴装工艺,节省PCB空间;
  • 焊接兼容性:支持回流焊、波峰焊,符合IPC-A-610标准;
  • 存储温度:-65℃~+150℃,满足长期存储要求;
  • 引脚配置:包含VCC、GND、电荷泵电容引脚(C1+/C1-、C2+/C2-)、TX/RX数据引脚、MCU对接引脚(T1IN、R1OUT)、EN使能引脚等,布线清晰易对接。

六、应用设计注意事项

  1. 电荷泵电容选择:必须使用4个0.1μF、10V以上的陶瓷电容(X7R材质温度特性稳定),电容需靠近器件引脚,避免长布线引入寄生电感;
  2. 电源滤波:VCC引脚并联10μF电解电容+0.1μF陶瓷电容,抑制电源噪声;
  3. ESD补充防护:RS-232接口端可增加TVS管(如SMBJ6.5CA),进一步提升静电防护能力;
  4. 低功耗控制:EN引脚可由MCU控制,空闲时拉低进入关断模式,降低系统功耗;
  5. 布线规范:RS-232数据引脚(TX/RX)需远离高频信号(如SPI、I2C),避免串扰。

MAX3221EEAE+T通过紧凑设计、低功耗与宽电压兼容特性,成为单串口通信场景的高性价比选择,尤其适合对空间、功耗有严格要求的工业与消费电子设备。

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