NLV74HC132ADG

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Logic gates and inverters are essential components in digital circuits. NLV74HC132ADG is one of the standard choices for advanced digital circuit design. This application note will explain the application field and working principle of the NLV74HC132ADG.

Introduction to NLV74HC132ADG

NLV74HC132ADG is a 4-inputHexNon-Inverting SchmittTrigger. It is a TTLcompatible IC with superior performance and robustness. Due to its hexIn formfactor, NLV74HC132ADG allows greater circuit density with fewer components hence making design easier and faster. The logic family used in NLV74HC132ADG is NMOS, which has high noise immunity and low power consumption. Furthermore, this hex SchmittTrigger has open collector outputsthat can be used to increase the fan-out without hardware modification.

Applications of NLV74HC132ADG

Due to its versatile characteristics, NLV74HC132ADG can be used in many digital circuit application. One of the most basic application of the NLV74HC132ADG is as a level shifter. With this logic gate, logic signal level can be translated betweenLVCMOSand TTL logical signal levels. This is done by changing the logic low level of the input signal. This is especially useful in applications that require multiple logic operating at different voltage level.

Another application of NLV74HC132ADG is in noise filtering. The Schmitt Trigger feature in the NLV74HC132ADG makes it ideal for this purpose. It can be used to filter out unwanted voltage spikes, which could lead to a corrupted output. In addition, NLV74HC132ADG can be used for data synchronization. Through the use of Schmitt Trigger, data can be synchronized to a uniform clock frequency which is necessary for some applications.

Working Principle of NLV74HC132ADG

The NLV74HC132ADG is a hex non-inverting Schmitt Trigger. The input signals are connected to the polysilicon gates of MOS transistors. When the input voltage level is higher than the threshold voltage VTH, the transistor saturates, causing the output voltage to be low. Conversely, when the voltage is lower than VTL, the transistor goes in cutoff mode, leading the output voltage to be high. The VTH and VTL are typically set by the internal circuitry of the NLV74HC132ADG.

The NLV74HC132ADG comprises of four such circuits and therefore, it can handle up to four logic inputs. It also has built in hysteresis, which helps to reduce noise. Hysteresis refers to the difference between VTH and VTL which prevents the circuit from entering a metastable state and keeps it in the logic state for which it is intended.

Conclusion

NLV74HC132ADG is a versatile Hex Non-inverting Schmitt Trigger. It is suitable for numerous applications, such as level shifting, data synchronization and noise filtering. Its characteristics, such as open collector outputs, provide greater flexibility for design. The logic family of the IC is NMOS and it has higher noise immunity and low power consumption. Working principle of the NLV74HC132ADG comprises of four logic inputs with built-in hysteresis, the difference in VTH and VTL ensures that the circuit remains in one logical state and prevents metastability.

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