CD74HC75中文资料高速 CMOS 逻辑双路 2 位双稳态透明锁存器数据手册TI规格书

描述 Description

The ’HC75 and ’HCT75 are dual 2-bit bistable transparent latches. Each one of the 2-bit latches is controlled by separate Enable inputs (1E\\ and 2E\\) which are active LOW. When the Enable input is HIGH data enters the latch and appears at the Q output. When the Enable input (1E\\ and 2E\\) is LOW the output is not affected.

特性 Features

• True and Complementary Outputs
• Fanout (Over Temperature Range)
• Bus Driver Outputs...15 LSTTL Loads
• Balanced Propagation Delay and Transition Times
• HC Types
• High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
• Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
• CMOS Input Compatibility, Il 1µA at VOL, VOH
Data sheet acquired from Harris Semiconductor

简介

CD74HC75属于集成电路（IC）的锁存器。由TI制造生产的CD74HC75锁存器锁存器是类似于触发器的基本数字存储设备，但是不同之处在于，在锁存使能（或类似命名）信号处于有效逻辑状态的任何时间，保持的逻辑状态都可以改变。“透明”锁存器还允许设备输出在锁存使能信号有效时反映输入的当前状态，而相反的是，状态仅在保持状态已固定时改变。