WMSIC Electronic Components

HGSEMI CD4020BM/TR CD4020BM

ModelCD4020BM/TR
PackageSOP-16
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI CD4020BM / TR
Type
HGSEMI
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
CD4020BM/TR
Electronic Component
1
Package
SOP-16
Electronic Component
Counter / Divider
Electronic Component
0.284g
Electronic Component
Electronic Component
Electronic Component
1
Features
positions
Electronic Component
BM0264336352
Reset
Electronic Component
Operating Temperature
0℃~+60℃
Operating Voltage
3V~15V
Electronic Component
24MHz
Logic Type
Electronic Component

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

CD4020BM/TR 14位二进制异步计数器产品概述

一、产品核心定位

CD4020BM/TR是华冠半导体(HGSEMI)推出的14位二进制异步计数器,属于经典CMOS 4000系列逻辑器件。该器件采用异步计数架构,无需复杂同步逻辑即可实现14位二进制状态循环,兼容3V~15V宽电压范围,适用于消费电子、小型工业设备等场景下的分频、定时、脉冲计数等基础逻辑功能,是替代传统分立计数器的高性价比方案。

二、关键性能参数解析

1. 逻辑功能与计数特性

  • 14位二进制异步计数:支持从0到2¹⁴-1(共16384个状态)的循环计数,异步架构下各触发器由前级输出驱动,无需全局时钟同步,结构简单且功耗较低;
  • 下降沿触发:输入时钟(CP)的下降沿(高电平→低电平跳变)触发计数器状态更新,抗干扰性优于上升沿触发(避免高频噪声误触发);
  • 异步复位:通过RESET引脚(高电平有效)实现即时清零,无需等待时钟沿即可将计数器复位至初始状态(0),响应速度快。

2. 电气与环境参数

  • 工作电压范围:3V~15V,覆盖纽扣电池(3V)、单片机(5V)、工业电源(12V)等多种供电场景,无需额外电平转换电路;
  • 计数速率:最高24MHz,满足中速脉冲计数、分频需求(如将24MHz时钟分频为1.5kHz低频信号);
  • 传播延迟(tpd):75ns,即时钟触发到输出状态更新的延迟时间,在中速应用中时序误差可忽略,确保逻辑功能稳定;
  • 工作温度范围:0℃+60℃,适用于常规室内环境(如家庭、办公室、小型车间),若需宽温(-40℃+85℃)需选择衍生型号。

三、封装与品牌背景

1. 封装规格

CD4020BM/TR采用SOP-16(小外形封装),引脚数16,典型尺寸为8.65mm×3.9mm×1.75mm,属于贴片封装类型。核心优势:

  • 体积紧凑,节省PCB布局空间,适配小型化产品(如智能手环、小型家电控制板);
  • 引脚间距合理,易焊接(手工/机器贴片均可),适合批量生产。

2. 品牌背景

华冠半导体(HGSEMI)是国内专注于CMOS逻辑器件、电源管理芯片的厂商,产品严格遵循国际4000系列标准,与TI、NXP等品牌的CD4020器件引脚兼容、功能一致,质量稳定且供应周期短,适合国内中小批量生产需求。

四、典型应用场景

CD4020BM/TR凭借简单架构与稳定性能,广泛应用于:

  1. 分频电路:将高频时钟(如24MHz)分频为不同低频信号(1.5kHz、3.8Hz等),用于LED流水灯、音频信号分频;
  2. 定时电路:结合RC振荡电路(如555定时器),通过计数周期实现精准定时(如计数1000个24MHz时钟,定时约41.67μs,可扩展为秒级);
  3. 脉冲计数:监测流量传感器、按键、编码器的脉冲输出,14位容量满足16383次以内计数;
  4. 消费电子:玩具(电子宠物、遥控车)、小型家电(加湿器定时、台灯调光时序)的基础逻辑控制;
  5. 小型工业设备:设备运行次数计数、电机启动间隔控制等低速时序逻辑。

五、核心性能优势总结

  1. 宽电压适配:3V~15V覆盖多场景供电,无需电平转换;
  2. 异步复位高效:即时清零,无需时钟同步,响应速度快;
  3. 中速性能稳定:24MHz计数速率+75ns延迟,满足中速逻辑需求;
  4. 紧凑封装设计:SOP-16节省PCB空间,适合小型化产品;
  5. 兼容替换性强:与国际4000系列CD4020引脚/功能一致,替换成本低。

该器件是中低速计数、分频场景下的高性价比选择,尤其适合国内中小批量消费电子、小型工业设备的设计需求。

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