WMSIC Electronic Components

HGSEMI CD4078BM/TR CD4078BM

ModelCD4078BM/TR
PackageSOP-14
BrandHGSEMI
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
HGSEMI CD4078BM / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
CD4078BM/TR
Electronic Component
1
Package
SOP-14
Electronic Component
Logic Gate
Electronic Component
4000
Electronic Component
0.264g
Electronic Component
1
Channel Count
8
Electronic Component
BM0264548641
Operating Temperature
40℃~+85℃
Operating Voltage
5V~18V
Logic Type
Gate
Channel Count
8
Static Current(Iq)
5uA

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

CD4078BM/TR 产品概述

CD4078BM/TR(HGSEMI 华冠)是一款面向数字逻辑系统的高输入数目 CMOS 器件,集成了正逻辑的 8 输入“或”与“或非(或的反相)”两种功能。该器件属于经典的 4000 系列 CMOS 逻辑家族,旨在为需要合并大量输入或实现复杂组合逻辑的设计提供一个单芯片解决方案,器件封装为 SOP-14(散装或卷带盘装 TR)。

一、功能简介

CD4078B 在单个 14 引脚封装内同时提供 8 路输入的 OR(或)输出和其反相输出(NOR),便于在正逻辑设计中直接实现八输入“或/或非”逻辑,减少门级数量与 PCB 占用。该型号是对现有 CMOS 门系列的补充,适用于宽电源范围的低功耗逻辑控制场合。

二、主要参数(典型/代表值)

  • 逻辑类型:8 输入 OR / NOR(或与或非)
  • 通道数(输入数):8
  • 工作电压(VDD):5 V ~ 18 V
  • 静态电流 Iq(典型):5 μA(无输入切换时)
  • 输入高电平 VIH(典型阈值,随 VDD 变化):
    • VDD = 15 V:VIH ≈ 11 V
    • VDD = 10 V:VIH ≈ 7 V
    • VDD = 5 V:VIH ≈ 3.5 V
  • 输入低电平 VIL(典型阈值):
    • VDD = 15 V:VIL ≈ 4 V
    • VDD = 10 V:VIL ≈ 3 V
    • VDD = 5 V:VIL ≈ 1.5 V
  • 输出电压(空载时,典型):
    • VOH(高电平)≈ VDD − 50 mV(示例:15 V → 14.95 V;10 V → 9.95 V;5 V → 4.95 V)
    • VOL(低电平)≈ 50 mV
  • 传播延迟 tpd:75 ns @ VDD = 10 V,输出负载 C = 50 pF(典型)
  • 工作温度范围:−40 ℃ ~ +85 ℃
  • 封装形式:SOP-14(亦有 DIP、TSSOP 等常见封装对应型号)
  • 品牌/型号:HGSEMI(华冠) CD4078BM/TR(TR 表示卷带盘装)

注:上列阈值为典型值,实际设计应参考厂家完整数据手册中的最小/最大规范并进行实验验证。

三、性能亮点

  • 宽电源电压范围(5–18 V),在工业电压等级下仍能正常工作,便于与不同电源系统兼容。
  • 极低的静态电流,适合电池供电或低功耗系统使用。
  • 高输入阻抗与 CMOS 特性,输入几乎不吸取直流电流,有利于多路输入和简单电平检测。
  • 输出接近电源轨(VOH, VOL 极小偏差),有利于多门级级联时保持良好的逻辑余量。
  • 单芯片集成 8 路输入,减少外部元件数量与 PCB 面积。

四、典型应用场景

  • 多路输入合取的组合逻辑(例如地址解码、按键组合检测、多个条件的逻辑触发)。
  • 报警逻辑或状态监测:多个传感器任一触发即输出高/低。
  • 逻辑信号整合与门级压缩,在资源受限的 PCB 上减少门数。
  • 与其他 CMOS 器件组成复杂的数字电路或状态机(需考虑延时与负载)。

五、设计注意事项与建议

  • 去耦:在 VDD 与 VSS 之间放置 0.1 μF 陶瓷电容,靠近芯片电源引脚,以抑制瞬态电流和开关扰动。
  • 输入悬空:CMOS 输入悬空会导致不确定状态或增加功耗,应使用上拉/下拉电阻定义阈值。
  • 负载驱动能力:CD4078B 为 CMOS 输出,能驱动一定的负载电容与若干门的输入,但驱动大电流负载(继电器、指示灯、电机)需通过缓冲器或驱动器。
  • 电平兼容性:由于输入阈值随 VDD 变化,若与 TTL/其它电平系统互连,应验证 VIH/VIL 是否满足接口要求;必要时使用电平移位或缓冲。
  • 热与功耗:在高温或频繁切换条件下,器件总功耗会上升,需在设计时留有裕量。
  • ESD 与静电防护:遵循标准防静电操作,运输与焊接时注意防护。
  • 布线:尽量缩短时序关键路径的连线,减少寄生电容对传播延迟的影响。

六、封装与采购信息

  • 常用封装:SOP-14(本描述为 CD4078BM/TR),亦可按需选择 DIP-14、TSSOP 等。
  • 包装形式:卷带盘装(/TR)适合贴片自动化生产,单片/散装可用于小批量开发。
  • 型号建议购买:CD4078BM/TR(HGSEMI,SOP-14,卷带)。

总结:CD4078BM/TR 为需要将多路信号进行或/或非合并的设计提供了低功耗、宽电压、集成度高的解决方案。正确的去耦、输入定义与负载匹配能发挥其在工业与消费类电子系统中的稳定与可靠性能。

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