WMSIC Electronic Components

LX MAX232ESE(LX) MAX232ESE

ModelMAX232ESE(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 MAX232ESE(LX)
Type
LX
Minimum package
4000 卷

Technical parameters

Electronic Component
LX
Electronic Component
MAX232ESE(LX)
Electronic Component
1
Package
SOP-16
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.274g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0264498246
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V
Receiver
2
Data
250Kbps
Driver
2
Charge Pump
Electronic Component

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

MAX232ESE(LX) 产品概述

一、产品简介

MAX232ESE(LX) 是灵星芯微(LX)出品的一款双驱动器/双接收器 RS-232 收发器,封装为 SOP-16。器件集成电荷泵,可在单电源 3.0V 至 5.5V 范围内工作,将 MCU/FPGA 的 TTL/CMOS 电平转换为符合 RS‑232 要求的正/负电压电平,支持最高 250 kbps 的数据速率,工作温度范围为 -40℃ 至 +85℃,并带欠压锁定(UVLO)保护,适用于多种工业与嵌入式串口场景。

二、主要参数

  • 类型:收发器(Transceiver)
  • 驱动器数量:2;接收器数量:2
  • 数据速率:最高 250 kbps
  • 工作电压:3.0 V ~ 5.5 V(单电源)
  • 电荷泵:内置(需外接泵用电容)
  • 欠压锁定:支持(UVLO)
  • 工作温度:-40℃ ~ +85℃
  • 封装:SOP-16
  • 品牌:LX(灵星芯微)

三、功能特点与优势

  • 单电源供电:在 3V 至 5.5V 范围内稳定工作,简化系统电源设计。
  • 集成电荷泵:无需负电源即可生成 RS‑232 所需的负电压,节省外部电路成本。通常与四只外部电容(典型 1µF)配合使用。
  • 欠压锁定保护:当电源低于安全阈值时自动断开输出,防止错误电平导致通讯故障或损伤。
  • 工业级温度范围:-40℃ 至 +85℃,适合严苛环境应用。
  • 小尺寸封装:SOP-16 便于 PCB 布局与密集封装应用。
  • 可靠的数据速率:支持 250 kbps,可满足多数串口通讯需求。

四、典型应用场景

  • 嵌入式系统与单片机串口扩展(UART 级别转换)
  • 工业控制设备、PLC、现场总线网关
  • POS 终端、条码扫描器、称重仪器等外设通信
  • 测试测量设备、仪器仪表的 RS‑232 接口
  • 串口调试、模块化通讯板卡

五、使用与布局建议

  • 按数据手册连接四只外部泵电容(一般 1µF),并将电容尽量靠近芯片相应引脚放置,以保证电荷泵稳定与低噪声输出。
  • 在 VCC 引脚附近并联去耦电容(如 0.1µF)以抑制高频干扰,减小 EMI。
  • RX/TX 信号线尽量短且分层走线,避免长线引入的反射与串扰。
  • 若工作在较高温度或密集封装环境,注意功耗与散热,必要时在 PCB 上提供散热铜箔。
  • 充分考虑 RS‑232 端的 ESD 与浪涌保护(在工业场合建议增加 TVS 二极管等保护器件)。

以上为 MAX232ESE(LX) 的概述。基于其单电源工作、内置电荷泵和欠压锁定特性,该器件在现代嵌入式与工业串口应用中具有良好的兼容性与可靠性。如需原理图连接、典型参考电路或更详细电气参数(如传输电平、输出驱动能力、漏电流等),可参考灵星芯微提供的产品数据手册或联系供应商获取支持。

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