General Description

The VHCT573A is an advanced high speed CMOS octal latch with 3-STATE output fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. This 8-bit D-type latch is controlled by a Latch Enable input (LE) and an Output Enable input (OE). When the OE input is HIGH, the eight outputs are in a high impedance state.

Features

■ High speed: tPD = 7.7ns (Typ.) at TA = 25°C

■ High Noise Immunity: VIH = 2.0V, VIL = 0.8V

■ Power Down Protection is provided on all inputs and outputs

■ Low Noise: VOLP = 1.6V (Max.)

■ Low Power Dissipation: ICC = 4µA (Max.) @ TA = 25°C

■ Pin and function compatible with 74HCT573

74VHCT573A属于集成电路（IC） > 锁存器。安森美半导体公司制造生产的74VHCT573A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。