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TC74VHC14F(EL,K,F)是东芝(TOSHIBA)推出的高速CMOS逻辑施密特触发反相器,属于74VHC系列,采用SOP-14小外形封装。作为施密特触发器,其核心优势在于输入信号的滞回特性——通过明确的输入高电平(VIH)与低电平(VIL)范围差异,有效抑制噪声干扰,避免信号误触发,是数字电路中信号整形、噪声过滤的关键器件。该器件集成反相逻辑功能,可将输入信号逻辑电平取反输出,同时保留施密特触发的抗噪特性,适配多场景数字系统需求。
该器件电气参数兼顾低功耗、高速性能与宽电压适配性,核心参数及应用意义如下:
宽电压工作范围:2V~5.5V
支持低功耗(2V)至高速(5.5V)的供电场景,兼容2V/3.3V/5V等主流数字系统电源电平,无需额外电平转换电路。
超低静态功耗:静态电流(Iq)仅2μA
极低的待机电流使其成为电池供电设备(如便携仪器、IoT节点)的理想选择,显著延长电池续航时间。
对称输出驱动能力:灌电流(IOL)/拉电流(IOH)均为8mA
可稳定驱动中等负载(如LED、小型逻辑门),无需外接驱动电路,简化系统设计流程。
施密特触发输入特性:
高速传播延迟:[email protected]/50pF
在5V供电、50pF负载条件下,传播延迟仅5.5ns,满足高频数字电路(如时钟处理、高速逻辑运算)的速度需求。
封装形式:SOP-14(小外形封装)
14引脚SOP封装体积紧凑,符合工业标准引脚布局,支持表面贴装(SMT)工艺,适合高密度PCB设计;同时具备良好散热性能,长期工作稳定性强。
工业级工作温度:-40℃~+85℃
覆盖极端环境温度区间,可稳定工作于户外设备、工业控制模块等场景,可靠性符合工业级器件标准。
TC74VHC14F凭借核心特性,广泛应用于以下场景:
该器件由东芝半导体生产,依托其成熟工艺具备:
总结:TC74VHC14F(EL,K,F)是集施密特抗噪、低功耗、高速性能、宽电压适配于一体的逻辑器件,适合工业控制、便携设备、信号调理等多场景,是数字电路信号整形与逻辑反相的优选方案。
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