WMSIC Electronic Components

74VHC245FT(BJ,K) 74VHC245FT

Model74VHC245FT(BJ,K)
PackageTSSOP-20B
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TOSHIBA 74VHC245FT(BJ, K)
Type
TOSHIBA
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TOSHIBA
Electronic Component
74VHC245FT(BJ,K)
Electronic Component
1
Package
TSSOP-20B
Electronic Component
Buffers / Drivers / Transceivers
Electronic Component
74VHC
Electronic Component
0.202g
Electronic Component
1
Electronic Component
1
Features
Output
Electronic Component
BM0264888492
Operating Temperature
20℃~+125℃
Operating Voltage
2V~5.5V
Output Type
Electronic Component
Type
Electronic Component

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

东芝74VHC245FT(BJ,K)双向收发器产品概述

东芝74VHC245FT(BJ,K)是一款基于高速CMOS(VHC)工艺的8位三态双向收发器,专为数字电路中多通道信号双向传输与总线共享设计,兼具低功耗、宽电压兼容、高速传输等核心特性,广泛适配工业控制、车载电子、消费电子等多种应用场景。

一、产品核心定位

作为74VHC系列的经典收发器产品,74VHC245FT(BJ,K)的核心功能是实现8路数字信号的双向传输切换,支持三态输出(高电平、低电平、高阻态),可有效解决多器件共享总线时的信号冲突问题,是数字系统中总线扩展、接口转换的关键组件之一。

二、关键电气特性解析

1. 宽电压兼容设计

工作电压范围覆盖2V~5.5V,兼容三大主流电压域:

  • 2V适配低功耗便携设备(如智能穿戴、无线传感器);
  • 3.3V适配单片机、FPGA等主流逻辑系统;
  • 5V适配传统TTL电路,无需额外电平转换即可实现跨电压域信号交互,简化系统设计。

2. 8位双向通道与三态输出

  • 集成8个双向信号通道,可同时处理8路并行数据传输,满足多通道数据采集、控制信号交互需求;
  • 三态输出特性支持高阻态:当器件未被选通时,输出端呈现高阻,可与其他收发器挂接在同一总线上,实现多设备总线共享,提升系统集成度。

3. 均衡驱动能力

灌电流(IOL)与拉电流(IOH)均为8mA,具备中等负载驱动能力,可直接驱动数字逻辑门、小型显示模块等负载,无需额外驱动电路,降低系统成本。

4. 低功耗与高速传输

  • 典型静态电流80μA:待机或低频率工作时功耗极低,适合电池供电的便携设备或对功耗敏感的系统;
  • 传播延迟(tpd)仅[email protected]、15pF负载:高速传输性能满足高频信号交互需求(如高速数据总线、时钟信号传输),保证系统响应速度。

三、封装与工作环境

1. 紧凑封装适配高密度设计

采用TSSOP-B-20薄型小尺寸封装,引脚数20,封装体积相比DIP封装节省约70%空间,适合小型化产品(如智能手表、微型控制器)及高密度PCB布局,贴合现代电子设备的小型化趋势。

2. 宽温范围适应恶劣环境

工作温度范围为**-40℃+125℃**,覆盖工业级(-4085℃)与部分车载级(-40~125℃)温度要求,可稳定工作在高低温交替的工业现场、车载环境(如发动机舱、仪表盘)等恶劣场景,可靠性突出。

四、品牌与可靠性保障

作为东芝半导体的成熟产品,74VHC245FT(BJ,K)依托东芝的工艺技术优势:

  • 采用VHC工艺,结合CMOS低功耗与TTL高速特性,兼容TTL输入电平,与传统74系列器件兼容性好;
  • 经过严格可靠性测试(温度循环、湿度老化、ESD防护等),产品一致性高,可长期稳定运行在各类应用场景中。

五、典型应用场景

  1. 工业控制:PLC(可编程逻辑控制器)的I/O扩展、传感器数据采集与控制信号传输;
  2. 车载电子:车身控制单元(BCM)的总线扩展、车载信息娱乐系统的信号接口;
  3. 消费电子:智能音箱、机顶盒的并行数据总线、小型家电的控制电路;
  4. 通信设备:路由器、交换机的信号接口切换、光纤收发器的辅助逻辑电路。

综上,东芝74VHC245FT(BJ,K)凭借宽电压兼容、高速低功耗、宽温工作等特性,成为数字系统中多通道双向信号传输的优选器件,适配各类对性能、可靠性有要求的应用场景。

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