DESCRIPTION

The 74LVQ14 is a low voltage CMOS HEX SCHMITT INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and low noise 3.3V applications.

The internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output.

Pin configuration and function are the same as those of the 74LVQ04 but the 74LVQ14 has hysteresis between the positive and negative input threshold typically of 650mV.

This together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals.

All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

■ HIGH SPEED:

tPD = 6 ns (TYP.) at VCC = 3.3 V

■ HYSTERESIS INPUT VOLTAGE:

VH = 650mV (TYP.) at VCC = 3.0 V

■ COMPATIBLE WITH TTL OUTPUTS

■ LOW POWER DISSIPATION:

ICC = 2µA(MAX.) at TA=25°C

■ LOW NOISE:

VOLP = 0.3V (TYP.) at VCC = 3.3V

■ 75Ω TRANSMISSION LINE DRIVING CAPABILITY

■ SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 12mA (MIN) at VCC = 3.0 V

■ PCI BUS LEVELS GUARANTEED AT 24 mA

■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL

■ OPERATING VOLTAGE RANGE:

VCC(OPR) = 2V to 3.6V

■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 14

■ IMPROVED LATCH-UP IMMUNITY

74LVQ14T属于集成电路（IC） > 门和反相器。意法半导体（ST）集团制造生产的74LVQ14T门和反相器逻辑栅极和逆变器系列中的产品对单个逻辑信号执行基本逻辑运算（例如 AND、NOT、OR 等）。与触发器不同，它们不能够存储信息，不会对提供给其输入的信号立即做出响应。虽然早就被集成电路实施形式所取代，以用于实现复杂功能，但分立栅极仍可在仅需要非常简单逻辑功能的情况下使用。