WMSIC Electronic Components

LX SN74HC125DR(LX) SN74HC125DR

ModelSN74HC125DR(LX)
PackageSOP14
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 SN74HC125DR(LX)
Type
LX
Minimum package
4000 卷

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LX
Electronic Component
SN74HC125DR(LX)
Electronic Component
1
Package
SOP14
Electronic Component
Buffers / Drivers / Transceivers
Electronic Component
74HC
Electronic Component
0.239g
Electronic Component
4
Electronic Component
1
Features
Output
Electronic Component
BM0264498237
Operating Temperature
40℃~+105℃
Operating Voltage
2V~6V
Output Type
Electronic Component
Type
Electronic Component

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

SN74HC125DR(LX) 缓冲器/驱动器产品概述

一、产品基本定位与核心身份

SN74HC125DR(LX)是国产厂商灵星芯微(LX) 推出的74HC系列逻辑器件,属于4通道三态缓冲器/驱动器,封装为14脚贴片封装(SOP14)。该器件兼容传统74HC125的功能特性,主打工业级宽温、低功耗、高速缓冲,是电子系统中信号隔离、总线驱动的常用基础器件。

二、关键电气参数与实际价值

参数的设计直接决定了器件的适用场景,以下是核心参数的实际意义解析:

1. 宽电压覆盖:2V~6V

支持从低功耗2V到常规5V的全电压区间,适配2.5V、3.3V、5V等不同逻辑电平域,无需额外电平转换电路,可直接兼容单片机、FPGA、传感器等多电压器件,简化系统设计流程。

2. 三态输出:高阻态实现总线共享

每个通道均具备高电平、低电平、高阻态三种输出状态,核心优势是解决多设备总线冲突问题——当多个器件挂在同一总线上时,非工作通道自动进入高阻态(相当于“断开连接”),避免信号相互干扰,适合计算机I2C/SPI总线、工业现场总线等场景。

3. 均衡驱动能力:灌/拉电流7.8mA

输出低电平时可吸收7.8mA电流(灌电流),高电平时可提供7.8mA电流(拉电流),能稳定驱动中等负载(如小型LED阵列、数码管、逻辑门级联,或小型继电器线圈),无需额外增加驱动级,降低系统成本与体积。

4. 低静态功耗:8μA

待机状态下静态电流仅8微安,几乎可忽略不计,适合电池供电的便携设备(如手持仪表、物联网终端)或对功耗敏感的工业控制系统,有效延长设备续航或待机时间。

5. 高速响应:11ns传播延迟

在典型工作电压4.5V、负载电容50pF条件下,信号传播延迟仅11纳秒,响应速度快,可满足100MHz以下高频逻辑信号的缓冲需求,避免因延迟导致的信号失真或时序错误。

6. 工业级宽温:-40℃~+105℃

比商业级器件(0℃~70℃)更耐极端温度,可适应户外设备、车间控制柜、车载电子等场景的严寒或高温环境,保证长期稳定运行。

三、封装与典型应用场景

1. SOP14封装优势

采用14脚贴片封装,体积小巧(约6.4mm×4.9mm),适合高密度PCB设计;支持自动贴装(SMT),可大幅降低生产难度与人工成本,适配批量生产需求。

2. 核心应用场景

  • 总线驱动/收发:计算机I2C/SPI总线、工业Modbus总线的信号缓冲,实现多设备无冲突共享;
  • 电平适配:不同电压域(如2.5V→5V、3.3V→5V)的信号隔离与电平匹配,解决跨电压域通信问题;
  • 负载驱动:驱动小型LED、数码管、逻辑门阵列,或作为数字信号与模拟负载的接口;
  • 工业控制:PLC(可编程逻辑控制器)的输入输出缓冲、传感器信号调理,适应宽温环境下的稳定工作。

四、品牌与可靠性补充

该器件由灵星芯微生产,参数兼容国际标准74HC125,经过工业级可靠性测试(高低温循环、湿度老化、ESD防护等),能满足工业设备、消费电子、物联网终端等场景的长期稳定运行需求,是替代进口器件的高性价比选择。

综上,SN74HC125DR(LX)凭借宽电压、三态输出、低功耗、高速、工业级温度等特性,成为逻辑缓冲/驱动领域的实用器件,适用于多种复杂电子系统设计。

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