General Description
The VHC161 is an advanced high-speed CMOS device 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.
   
Features
■ High Speed:
    fMAX = 185 MHz (typ) at TA = 25°C
■ Synchronous counting and loading
■ High-speed synchronous expansion
■ Low power dissipation:
    ICC = 4 µA (max) at TA = 25°C
■ High noise immunity: VNIH = VNIL = 28% VCC (min)
■ Power down protection provided on all inputs
■ Low noise: VOLP = 0.8V (max)
■ Pin and function compatible with 74HC161