General Description
The VHC139 is an advanced high speed CMOS Dual 2-to- 4 Decoder/Demultiplexer 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: tPD = 5.0 ns (typ) at TA = 25°C
■ Low power dissipation: ICC = 4 µA (Max.) at TA = 25°C
■ High noise immunity: VNIH = VNIL = 28% VCC (Min.)
■ Power down protection is provided on all inputs
■ Pin and function compatible with 74HC139