WMSIC Electronic Components

XBLW SN74HC74N

ModelSN74HC74N(XBLW)
PackageDIP-14
BrandXBLW
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
XBLW SN74HC74N(XBLW)
Type
XBLW
Minimum package
25 圆盘

Technical parameters

Electronic Component
positionsand positions
Electronic Component
Electronic Component
Electronic Component
XBLW
Electronic Component
SN74HC74N(XBLW)
Electronic Component
1
Package
DIP-14
Type
D
Electronic Component
Flip-Flop
Electronic Component
74HC
Electronic Component
1.619g
Electronic Component
2
Electronic Component
Electronic Component
Electronic Component
1
Latching
2ns
Electronic Component
BM0265609045
Operating Temperature
40℃~+105℃

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

SN74HC74N(XBLW)双D型触发器产品概述

SN74HC74N是芯伯乐(XBLW)推出的74HC高速CMOS系列双1位D型触发器,集成两路独立的D触发器单元,具备异步置位(S)、异步复位(R)功能,采用上升沿触发时钟与互补输出(Q/Q非)设计,广泛适用于时序逻辑、数据锁存等场景,是传统LS系列的升级替代方案。

一、产品核心功能与定位

该器件为双路1位D触发器,每路独立实现上升沿触发的数据存储:当时钟(CP)上升沿到来时,输出Q将与输入D保持一致;异步置位(S)和复位(R)端可独立控制每路输出的初始状态(置位时Q=1,复位时Q=0),无需依赖时钟信号,电路设计灵活性更高。作为74HC系列成员,其兼顾高速性能与低功耗特性,适配多场景需求。

二、关键电气参数详解

1. 电压与功耗特性

  • 工作电压范围:2V~6V,兼容3.3V、5V主流逻辑电平系统,可适配不同供电场景(如电池供电设备、工业控制系统);
  • 静态电流:2μA(典型值),低功耗设计降低待机能耗,适合便携或低功耗设备;
  • 驱动能力:灌电流(IOL)5.2mA@5V、拉电流(IOH)4mA@5V,可直接驱动中小负载(如LED、小型逻辑门),无需额外驱动电路。

2. 时序与速度性能

  • 时钟频率:最大76MHz,支持高频时序逻辑应用(如时钟分频、脉冲整形);
  • 传播延迟:14ns@5V、15pF负载,信号传输延迟小,响应速度快;
  • 建立/保持时间:建立时间13ns、保持时间-2ns(负保持时间),时钟上升沿前13ns内输入D需稳定,上升沿后可立即变化,时序裕量充足。

3. 环境与可靠性

  • 工作温度范围:-40℃~+105℃,工业级宽温设计,可适应户外、 harsh环境(如车载、工业自动化);
  • 输入电容:3.5pF(典型值),输入负载小,对前级电路驱动要求低。

三、封装与引脚配置

SN74HC74N采用DIP-14(双列直插14脚) 封装,引脚布局清晰,便于手工焊接与原型开发,具体引脚功能如下:

引脚编号 功能说明 引脚编号 功能说明 1 S1(路1异步置位) 8 S2(路2异步置位) 2 D1(路1数据输入) 9 D2(路2数据输入) 3 CP1(路1时钟) 10 CP2(路2时钟) 4 R1(路1异步复位) 11 R2(路2异步复位) 5 Q1非(路1反相输出) 12 Q2非(路2反相输出) 6 Q1(路1输出) 13 Q2(路2输出) 7 GND(地) 14 VCC(电源)

四、典型应用场景

  1. 时钟分频电路:将每路Q非输出反馈至D输入,时钟上升沿时输出翻转,实现二分频,适用于时钟同步、频率合成;
  2. 数据锁存器:利用异步置位/复位端设置初始状态,时钟上升沿锁存输入D数据,可用于并行数据暂存、按键防抖(结合RC滤波);
  3. 脉冲整形:对不规则脉冲(如按键抖动、噪声干扰)进行边沿触发整形,输出稳定方波;
  4. 工业控制:宽温范围与高可靠性,可用于工业自动化设备的时序控制、状态监测;
  5. 原型开发:DIP封装易焊接,适合面包板、实验板的快速原型验证,降低开发成本。

五、性能优势总结

  • 高速低耗:74HC工艺兼顾76MHz高频性能与2μA静态功耗,优于传统LS系列;
  • 宽电压兼容:2~6V供电适配3.3V/5V系统,无需电平转换;
  • 异步控制灵活:独立异步置位/复位端,无需时钟即可设置初始状态;
  • 工业级可靠性:宽温设计与高抗干扰能力,满足 harsh环境需求;
  • 互补输出实用:Q与Q非同时输出,简化电路设计(无需额外反相器)。

该器件凭借稳定性能与灵活功能,成为时序逻辑设计的经典选择,覆盖消费电子、工业控制、原型开发等多领域。

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