
STMicroelectronics
DESCRIPTION
The 74VHCT14A is an advanced high-speed CMOS HEX SCHMITT INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.
The internal circuit is composed of 3 stages including buffer output, which enable high noise immunity and stable output.
Power down protection is provided on all inputs and outputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V.
■ HIGH SPEED: tPD = 4 ns (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION: ICC =2 µA (MAX.) at TA = 25 °C
■ TYPICAL HYSTERESIS:0.7V at VCC = 4.5V
■ 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 14
■ IMPROVED LATCH-UP IMMUNITY
■ LOW NOISE: VOLP = 0.8V(Max.)