Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
CJ CJ74HC74BDN
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ CJ74HC74BDN
- Type
- CJ
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- positionsand positions
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- CJ74HC74BDN
- Electronic Component
- 1
- Package
- TSSOP-14
- Type
- D
- Electronic Component
- Flip-Flop
- Electronic Component
- 74HC
- Electronic Component
- 0.245g
- Electronic Component
- 2
- Electronic Component
- Electronic Component
- Electronic Component
- 1
- Latching
- 3ns
- Electronic Component
- BM0265022272
- Operating Temperature
- 40℃~+125℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CJ74HC74BDN 产品概述
一、产品简介
CJ74HC74BDN 是江苏长电（CJ）推出的双路 D 型触发器，属于 74HC 系列。器件为上升沿触发、异步置位/复位的双元件单比特触发器，提供互补输出（Q 与 /Q），工作电压范围宽（2V～6V），适合各类中高速逻辑控制与寄存场景。
二、主要特性
- 类型：D 型触发器（双通道，每通道 1 位）
- 触发沿：上升沿触发
- 功能：异步置位（SET）与复位（RESET）
- 输出类型：互补输出（Q，/Q）
- 工作电压：2.0V ～ 6.0V
- 时钟频率（典型）：82 MHz
- 典型传播延迟：tpd = 14 ns（VCC = 6V，CL = 15 pF）
- 驱动能力：IOL = 5.2 mA、IOH = 5.2 mA
- 静态电流：Iq ≈ 40 μA
- 输入电容：约 3.5 pF
- 工作温度：-40 ℃ ～ +125 ℃
- 封装：TSSOP-14
三、电气性能与时序参数
器件在 6V、15 pF 负载情况下的传播延迟约为 14 ns，配合典型最大时钟频率约 82 MHz，适合多数中高速同步电路。建立时间（setup time）约 13 ns，保持时间（hold time）约 3 ns，设计时需保证时钟与数据的相对时序满足该要求以避免竞争冒险。静态电流低（约 40 μA），有利于低功耗应用；输入电容小（3.5 pF），减少对驱动器的负担。
四、封装与布局建议
CJ74HC74BDN 提供 TSSOP-14 封装，适合 PCB 密度较高的应用。PCB 布线建议将时钟与 SET/RESET 信号走短线并接地参考良好，减少串扰；输出端若驱动较大负载，应在靠近引脚处提供去耦电容并注意散热与接地回流路径。
五、典型应用场景
- 同步寄存器和数据锁存电路
- 状态机和计数器的单元存储
- 时序控制、脉冲延迟与分频电路
- 波形形成与边沿检测电路
六、设计注意事项与实用建议
- 在低压（2.0V～3.3V）工作时需验证时序裕度与最大切换频率是否满足系统要求。
- 异步置位/复位为直接控制信号，建议对 SET/RESET 添加抗抖或上拉/下拉以避免误触发。
- 若并联多器件或长连线，注意总负载电容对传播延迟和时序的影响，必要时调整时钟边沿速率或加入缓冲。
- 对于关键信号，建议在 VCC 与 GND 之间加 0.1 μF 陶瓷去耦电容以抑制瞬态电流尖峰。
以上为 CJ74HC74BDN 的产品概述与应用建议，可作为选型与电路设计参考。若需引脚排列、详细时序图或完整电气规格表，可参考厂家 datasheet 或联系供应商获取更详细资料。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
