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XD74LS75是信路达(XINLUDA)推出的一款经典74LS系列TTL逻辑器件,定位于数字电路中的并行数据暂存与锁存场景,具备4通道独立处理、互补输出、高速响应等核心特性,兼容DIP-16封装,适配消费电子、工业控制、微处理器系统等多领域需求。
XD74LS75属于电平触发型D型锁存器,核心功能是在使能信号有效时,将4组并行输入数据锁存到输出端,并同步输出原信号与反相信号(互补输出)。与触发器不同,其锁存动作由使能端电平控制(低电平有效):使能有效时,输出跟随输入变化;使能无效时,输出保持当前数据不变,适合需要临时存储、状态保持的数字系统设计。
XD74LS75的电气参数严格遵循74LS系列标准,核心性能参数如下:
XD74LS75采用DIP-16双列直插封装,引脚布局与标准74LS75完全兼容,便于原型开发、传统PCB焊接及旧设备升级替换,典型引脚功能如下:
引脚编号 功能描述 引脚编号 功能描述 1 通道1输入(1D) 9 通道3输出(3Q) 2 通道1输出(1Q) 10 通道3输入(3D) 3 通道1反相输出(1Q') 11 通道3反相输出(3Q') 4 通道2输入(2D) 12 通道4输出(4Q) 5 通道2输出(2Q) 13 通道4输入(4D) 6 通道2反相输出(2Q') 14 电源正极(VCC) 7 电源地(GND) 15 使能1(EN1,低有效,控制1-2通道) 8 通道4反相输出(4Q') 16 使能2(EN2,低有效,控制3-4通道)注:使能端(EN1/EN2)为低电平时,对应通道锁存数据;高电平时保持当前数据。
XD74LS75的功能特性使其适用于多种数字系统:
信路达(XINLUDA)作为国产电子元器件品牌,XD74LS75具备以下优势:
XD74LS75作为一款经典74LS系列4通道D型锁存器,兼具高速响应、互补输出、稳定可靠等特点,适配DIP-16封装,广泛应用于消费电子、工业控制、微处理器系统等场景。信路达的国产替代方案不仅满足性能需求,更具备成本与供应优势,是传统数字电路升级或新项目设计的理想选择。
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