MC74VHC259集成电路（IC）的锁存器规格书PDF中文资料

MC74VHC259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MC74VHC259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

• These Devices are Pb−Free and are RoHS Compliant