DESCRIPTION
The M74HCT139 is an high speed CMOS DUAL TWO LINE TO FOUR LINE DECODER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology.
The active low enable input can be used for gating or as a data input for demultiplexing applications.

■ HIGH SPEED:
   tPD = 17ns (TYP.) at VCC = 4.5V
■ LOW POWER DISSIPATION:
   ICC = 4µA(MAX.) at TA=25°C
■ COMPATIBLE WITH TTL OUTPUTS :
   VIH = 2V (MIN.) VIL = 0.8V (MAX)
■ SYMMETRICAL OUTPUT IMPEDANCE:
   |IOH| = IOL = 4mA (MIN)
■ BALANCED PROPAGATION DELAYS:
   tPLH = tPHL
■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 139