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