DESCRIPTION
The 74VHCT238A is an advanced high-speed CMOS 3 TO 8 LINE DECODER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.
   
■ HIGH SPEED: tPD = 8 ns (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION:
    ICC =4 µA (MAX.) at TA = 25 oC
■ COMPATIBLEWITH TTL OUTPUTS:
    VIH = 2V (MIN), VIL = 0.8V(MAX)
■ POWERDOWN PROTECTIONON INPUTS &
    OUTPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
    |IOH| = IOL = 8 mA (MIN)
■ BALANCEDPROPAGATIONDELAYS:
    tPLH ≅ tPHL
■ OPERATING VOLTAGERANGE:
    VCC (OPR)= 4.5V to 5.5V
■ PIN AND FUNCTION COMPATIBLE WITH
    74 SERIES 238
■ IMPROVED LATCH-UP IMMUNITY