DESCRIPTION
The 74VHCT138A is an advanced high-speed CMOS 3 TO 8 LINE DECODER (INVERTING) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.

■ HIGH SPEED: tPD= 7.6 ns (TYP.) at VCC=5V
■ LOW POWER DISSIPATION: ICC=4µA (MAX.) at TA=25°C
■ COMPATIBLEWITH TTL OUTPUTS: VIH =2V(MIN),VIL = 0.8V(MAX)
■ POWER DOWN PROTECTION ON INPUTS & OUTPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH|=IOL= 8 mA (MIN)
■ BALANCED PROPAGATION DELAYS: tPLH≅tPHL
■ OPERATING VOLTAGE RANGE: VCC(OPR) = 4.5V to 5.5V