WMSIC Electronic Components

74VHC393FT(BJ) 74VHC393FT

Model74VHC393FT(BJ)
PackageTSSOP-14B
BrandTOSHIBA
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 22+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TOSHIBA 74VHC393FT(BJ)
Type
TOSHIBA
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TOSHIBA
Electronic Component
74VHC393FT(BJ)
Electronic Component
1
Package
TSSOP-14B
Electronic Component
Counter / Divider
Electronic Component
0.091g
Electronic Component
2
Electronic Component
Electronic Component
Electronic Component
1
Features
positions
Electronic Component
BM0265273522
Reset
Electronic Component
Operating Temperature
40℃~+125℃
Operating Voltage
2V~5.5V
Electronic Component
170MHz

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

74VHC393FT(BJ) 双4位二进制异步向上计数器产品概述

一、产品核心定位与设计背景

74VHC393FT(BJ)是东芝(TOSHIBA)推出的高速CMOS逻辑器件,属于双4位二进制异步向上计数器,专为汽车电子、工业控制等对计数速度、宽温适应性及可靠性要求严苛的场景设计。该器件基于VHC(高速CMOS)工艺,兼顾高速性能与低功耗特性,同时通过AEC-Q100汽车级认证,可满足车载及工业环境下的长期稳定工作需求。

二、关键性能参数深度解析

作为二进制计数器核心,74VHC393FT(BJ)的参数覆盖高速计数、宽电压范围等关键需求:

  • 计数架构:集成2个独立4位二进制向上计数器,每个通道均支持下降沿触发时钟(CP) 与异步低电平复位(MR),计数方向固定为向上,无需额外配置;
  • 电气性能:工作电压范围为2.0V~5.5V,兼容低功耗(2V)与高速(5V)应用场景;传播延迟(tpd)典型值5.8ns(5V下),最高计数速率达170MHz,可处理高频信号计数;
  • 功能特性:异步复位无需时钟同步,低电平(MR=0)时立即清零,提升系统实时响应效率;每个计数器为4位,可通过级联(如2个4位组成8位)扩展至更高位计数。

三、封装与工作环境适应性

1. 封装形式

采用TSSOP-14B(14引脚薄型小尺寸封装),体积仅为传统DIP封装的约40%,引脚间距0.65mm,适合高密度PCB设计;编带包装(T/R)适配自动化贴装工艺,提升生产效率。

2. 环境适应性

工作温度范围为**-40℃~+125℃**,符合AEC-Q100 Grade 1汽车级标准,可在极端温度(如发动机舱高温、低温环境)下稳定工作;同时具备抗静电(ESD)与抗电磁干扰(EMI)能力,降低复杂环境下的信号干扰风险。

四、核心应用优势

  1. 双计数器独立可控:两个4位计数器完全独立,可分别执行不同计数任务(如一个计数转速,一个分频时钟),或级联实现8位/16位等高位计数;
  2. 高速与低功耗平衡:VHC工艺在5V下保持170MHz高速计数能力,2V下仍能稳定工作,适合电池供电的低功耗设备与高频应用场景;
  3. 异步复位灵活性:低电平有效异步复位无需时钟同步,可在任意时刻清零,便于系统调试与实时控制(如故障复位、时序校准);
  4. 汽车级可靠性:通过AEC-Q100认证,具备严格的可靠性测试(如温度循环、湿度老化),可满足车载电子系统的长期稳定运行要求。

五、典型应用场景

  • 汽车电子:发动机ECU的转速计数、仪表盘里程/速度分频、安全系统(如气囊触发时序计数)、车身控制模块(BCM)的信号处理;
  • 工业控制:编码器信号计数(如电机转速、位置检测)、PLC高速计数模块、工业自动化设备的时序控制;
  • 消费电子:数字频率计的计数单元、高速时钟分频(如2^4分频实现1/16频率输出)、游戏设备的按键计数;
  • 通信设备:同步时钟分频、数据传输中的位计数、基站信号处理单元的时序控制。

六、品牌与质量保障

  • 品牌背书:东芝半导体的成熟逻辑器件产品线,具备数十年的工艺积累与质量验证,产品一致性与可靠性行业领先;
  • 认证资质:AEC-Q100认证覆盖汽车电子全流程可靠性要求,可直接用于车载级产品设计,无需额外认证;
  • 技术支持:提供完整的datasheet、应用手册与技术咨询,便于电路设计、PCB布局与调试,降低研发周期。

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