WMSIC Electronic Components

LX MAX3232ESE(LX) MAX3232ESE

ModelMAX3232ESE(LX)
PackageSOP-16
BrandLX
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
LX MAX3232ESE(LX)
Type
LX
Minimum package
4000 卷

Technical parameters

Electronic Component
LX
Electronic Component
MAX3232ESE(LX)
Electronic Component
1
Package
SOP-16
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.242g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0264498250
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V
Receiver
2
Data
250Kbps
Static Current
1mA
Electronic Component
±15kV

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

MAX3232ESE(LX) RS232收发器产品概述

MAX3232ESE(LX)是灵星芯微(LX)推出的一款兼容MAX3232系列的RS232收发器,采用SOP-16贴片封装,专为解决TTL/CMOS逻辑电平与RS232标准电平的双向转换需求设计,具备宽电压兼容、内置电荷泵、工业级可靠性等特点,广泛适用于工业控制、消费电子、嵌入式系统等多领域。

一、产品核心定位与基本属性

作为RS232协议的专用收发器,MAX3232ESE(LX)的核心作用是实现TTL/CMOS逻辑电平(3.3V/5V)与RS232标准电平(±12V左右)的双向转换——这是因为RS232采用负逻辑(-12V表示逻辑1,+12V表示逻辑0),而绝大多数单片机、MCU等数字电路仅支持正逻辑电平,无法直接对接RS232接口。

该产品由灵星芯微出品,封装为SOP-16(16引脚贴片封装),引脚定义与主流MAX3232型号兼容,可直接替换同系列产品,无需调整电路设计。

二、关键性能参数详解

MAX3232ESE(LX)的参数设计兼顾兼容性、可靠性与实用性,核心参数如下:

2.1 收发器配置

内置2个驱动器+2个接收器,支持双串口同时通信——例如可同时连接PC的COM1/COM2,或嵌入式系统的两路串口外设(如传感器与打印机),减少系统中额外收发器的使用,简化电路布局。

2.2 数据速率与电压范围

  • 数据速率:最高支持250Kbps,覆盖主流串口通信速率(9600bps、115200bps、230400bps等),满足绝大多数串口设备的传输需求;
  • 工作电压:3V~5.5V宽范围兼容,适配3.3V单片机(如STM32、ESP32)、5V传统MCU(如51系列)及各类电源模块,无需额外设计电平转换电路。

2.3 电荷泵与功耗设计

内置高效电荷泵,无需外接±12V高压电源,仅需3~5.5V单电源即可生成RS232所需的正负电平,大幅简化电路(传统RS232收发器需外接4个电容实现电荷泵,该产品仅需4个1μF电容,进一步节省PCB空间); 静态电流仅1mA,低功耗特性适合电池供电设备(如便携式串口测试仪)或对功耗敏感的嵌入式系统。

2.4 可靠性参数

  • 静电保护:±15kV(人体模型HBM),可有效抵御日常操作中的静电冲击,降低设备损坏风险;
  • 工作温度范围:-40℃~+85℃,符合工业级温度标准,可在户外、车间等恶劣环境下稳定工作;
  • 抗干扰能力:符合RS232协议的噪声容限要求,可在复杂电磁环境下保持通信稳定。

三、典型应用场景

MAX3232ESE(LX)的兼容性与可靠性使其适用于多领域场景:

3.1 工业控制领域

  • PLC(可编程逻辑控制器)的串口通信接口;
  • 工业传感器节点(如温度、压力传感器)与上位机的串口对接;
  • 工业网关、数据采集模块的串口扩展。

3.2 消费电子与办公设备

  • POS收银机、小票打印机的串口接口;
  • 老式打印机、扫描仪与电脑的串口连接;
  • 家用路由器、机顶盒的串口调试接口。

3.3 嵌入式与物联网系统

  • 单片机开发板(如Arduino、STM32开发板)的串口转RS232模块;
  • 物联网网关的串口数据采集;
  • 车载诊断系统(OBD)的串口通信接口。

四、封装与应用优势总结

MAX3232ESE(LX)采用SOP-16贴片封装,体积小巧(引脚间距1.27mm),适合高密度PCB设计,且支持自动化贴装,降低生产难度。

综合来看,该产品的核心优势包括:

  1. 单电源简化设计:内置电荷泵无需高压电源,减少外围器件;
  2. 宽电压兼容:适配3.3V/5V系统,无需额外电平转换;
  3. 双串口支持:减少元器件数量,优化电路布局;
  4. 工业级可靠性:-40℃~+85℃温宽与±15kV静电保护,适应 harsh环境;
  5. 低功耗:静态1mA,适合电池供电设备。

作为一款高性价比的RS232收发器,MAX3232ESE(LX)可满足绝大多数串口通信场景的需求,是工业控制、嵌入式系统等领域的理想选择。

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