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.
â HIGH SPEED: tPD = 5.7ns (TYP.) at VCC = 5V
â LOW POWER DISSIPATION:
ICC = 4 µA (MAX.) at TA=25°C
â HIGH NOISE IMMUNITY:
VNIH = VNIL = 28% VCC (MIN.)
â POWER DOWN PROTECTION ON INPUTS
â SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8 mA (MIN)
â BALANCED PROPAGATION DELAYS:
tPLH â
tPHL
â OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 5.5V
â PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 138
â IMPROVED LATCH-UP IMMUNITY
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