WMSIC Electronic Components

GR 74HC595

Model74HC595
PackageSOP-16
BrandGR
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
GR 74HC595
Type
GR
Minimum package
4000 圆盘

Technical parameters

Electronic Component
to
Electronic Component
Electronic Component
Electronic Component
GR
Electronic Component
74HC595
Electronic Component
1
Package
SOP-16
Electronic Component
positions Register
Electronic Component
74HC
Electronic Component
0.19g
Electronic Component
1
Electronic Component
1
Features
Output
Electronic Component
BM0264390955
Operating Temperature
40℃~+85℃
Operating Voltage
2V~6V
Output Type
Electronic Component

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

GR国睿74HC595 串行移位寄存器产品概述

一、产品核心功能定位

GR国睿74HC595是一款**8位串行输入、并行输出(支持串行级联)**的高速CMOS移位寄存器,属于74HC系列逻辑器件。其核心作用是解决微控制器(MCU)IO口资源不足的问题——通过3个控制引脚(串行数据、移位时钟、锁存时钟),实现8位并行信号的输出扩展,同时支持“串行转串行”级联,可灵活扩展至任意位数的IO通道,适配消费电子、工业控制等多场景需求。

二、关键电气参数详解

74HC595的参数适配主流数字系统,核心指标如下:

  • 工作电压:2V~6V,兼容3.3V(如STM32、ESP32)和5V(如51单片机、Arduino)系统,无需额外电平转换;
  • 时钟频率:最大10MHz,支持高速数据移位,满足实时控制场景的响应需求;
  • 输出类型:三态输出(高电平、低电平、高阻态),高阻态可避免总线冲突,适合多器件共享总线;
  • 传播延迟:100ns(典型值,5V电源、50pF负载下),信号延迟低,确保数据同步性;
  • 工作温度:-40℃~+85℃,覆盖工业级温度范围,可稳定工作于户外、车间等温差场景;
  • 位数配置:单器件固定8位并行输出,支持无限级联(通过串行输出端级联下一级)。

三、封装与品牌说明

  • 封装形式:SOP-16(小外形16引脚封装),体积紧凑(约7.5mm×5.3mm),适合贴片焊接,节省PCB空间;
  • 品牌背景:GR国睿是国内专注于高速CMOS逻辑器件的优质品牌,74HC595采用成熟制程,质量可靠,性价比高于进口同类产品,供货稳定。

四、典型应用场景

74HC595因IO扩展灵活、成本低,被广泛用于:

  1. 数码管/LED驱动:单片机仅需3个引脚,即可驱动8位LED数码管或16个独立LED(级联2个),大幅减少MCU引脚占用;
  2. 按键矩阵扩展:采用“串入串出”模式,级联多个595可扩展数十个按键输入,适合智能家居面板、工业控制面板;
  3. LED点阵控制:8×8点阵需16个通道(8行+8列),通过2个595级联可实现行/列驱动,配合单片机完成动态显示;
  4. 工业IO扩展:PLC或单片机IO不足时,级联595扩展数字输出,控制继电器、指示灯等执行元件。

五、级联特性与使用注意

74HC595的级联是核心优势:每个器件的串行输出端(Q7')直接连接下一级的串行输入端(DS),移位时钟(SH_CP)和锁存时钟(ST_CP)共用,仅需增加级联走线,即可实现任意位数扩展(如16位输出需2个级联)。

使用注意:

  • 电源端(VCC)靠近引脚并联0.1μF滤波电容,避免噪声干扰;
  • 时钟走线尽量短,减少信号反射,确保数据稳定;
  • 三态输出场景下,同一总线仅一个器件处于非高阻态,避免短路。

六、产品优势总结

GR国睿74HC595相比同类产品,具备:

  • 宽电压适配:无需电平转换,兼容主流MCU;
  • 高速低延迟:100ns延迟,满足实时控制;
  • 工业级可靠性:-40℃~+85℃温度范围,适应恶劣环境;
  • 灵活扩展:级联无限制,IO扩展成本低;
  • 小封装省空间:SOP-16适合小型化产品设计。

这款器件是MCU系统IO扩展的经典选择,广泛应用于消费电子、工业控制、智能家居等领域,是工程师实现低成本多通道控制的可靠方案。

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