MC74VHC259D集成电路（IC）的锁存器规格书PDF中文资料

MC74VHC259D属于集成电路（IC）的锁存器。由安森美半导体公司制造生产的MC74VHC259D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。

The MC74VHC259 is an 8–bit Addressable Latch fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL devices while maintaining CMOS low power dissipation.

• High Speed: tPD = 7.6 ns (Typ) at VCC = 5 V

• Low Power Dissipation: ICC = 2 µA (Max) at TA = 25°C

• High Noise Immunity: VNIH = VNIL = 28 VCC

• CMOS–Compatible Outputs: VOH > 0.8 VCC; VOL < 0.1 VCC @Load

• Power Down Protection Provided on Inputs and Outputs

• Balanced Propagation Delays

• Pin and Function Compatible with Other Standard Logic Families

• Latchup Performance Exceeds 300 mA

• ESD Performance: HBM > 2000 V