DESCRIPTION

The 74VHC138 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 = 5.7ns (TYP.) at VCC = 5V

■ LOW POWER DISSIPATION:

ICC = 4 µA (MAX.) at TA=25°C

■ HIGH NOISE IMMUNITY:

VNIH = VNIL = 28 VCC (MIN.)

■ POWER DOWN PROTECTION ON INPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 8 mA (MIN)

■ BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

■ OPERATING VOLTAGE RANGE:

VCC(OPR) = 2V to 5.5V

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 138

■ IMPROVED LATCH-UP IMMUNITY