74LV123PW,118 Integrated Circuits (ICs)

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Logic - Multivibrators

The 74LV123PW,118 is classified under Logic - Multivibrators. It is a single active-low monostable multivibrator, which is used in military, commercial and automotive applications. This type of logic-multivibrator is designed for high frequency applications which enables it to have low propagation delays and fast switching time. The 74LV123PW,118 is operational at temperatures ranging from -40°C to +85°C with overvoltage (ESD) immunity levels of 2KV.

Application Fields

The 74LV123PW,118 is used in numerous applications and is made to handle reliable operations even in harsh operating conditions. It is most commonly used in automotive systems and applications that require high-noise immunity such as transmission and data-communication systems. It is also used in industrial applications such as digital controllers, industrial automation systems, etc., and in military grade applications such as decoding and signal conditioning. This logic-multivibrator is also found in medical systems, wherein it is used to detect and analyze various radiation sources.

Working Principle

A logic-multivibrator is basically an oscillator or a timer, with logic inputs and outputs. Internally, it consists of two transistors. A capacitor is connected to the output of one of the transistors. When an input signal is applied, current will flow through both the transistors, which will result in charging or discharging actions of the capacitor. As the capacitance changes, the time for recharge or discharge will change. At the threshold potential, the output of the logic-multivibrator will switch from low to high or from high to low. The 74LV123PW,118 contains an enable/disable serial input which, when enabled, will reset the multivibrator and thereby terminate the output signal.

The 74LV123PW,118 is a single active-low monostable multivibrator, allowing a single output pulse to be generated when the input is active. The device is available in an 8-pin small outline package, allowing it to be used in compact assemblies while still providing the reliability and fast switching times associated with logic-multivibrators. It can also handle input pulses of up to 120nS without resetting or damaging the logic-multivibrator.

Conclusion

The 74LV123PW,118 is a versatile, reliable and high-performance active-low monostable multivibrator. It can be used for numerous applications and provides excellent operational capabilities at both high-noise and extreme temperature levels. In addition, it has the ability to handle input pulses of up to 120nS without resetting or damaging the logic-multivibrator.

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