74HC423N,652

Series:	74HC
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	Monostable
Independent Circuits:	2
Schmitt Trigger Input:	No
Propagation Delay:	20ns
Current - Output High, Low:	5.2mA, 5.2mA
Voltage - Supply:	2V ~ 6V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-DIP
Base Part Number:	74HC423

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Multivibrators are electronic circuits that employ logic gates to oscillate within a certain frequency range, with the intent of producing output signals that have a duty cycle of 50%. They are widely used in the electronics industry for a variety of purposes, including timers, modulators, synchronizers, frequency divider, flip-flops and more. The 74HC423N,652 is a specific type of multivibrator, which is used to provide pulse-width modulation (PWM) of an analog signal. It has a versatile application field and its general working principle is explained in this article.The 74HC423N,652 is a type of "two-stage" multivibrator circuit, which is designed to produce a symmetrical rectangular waveform of a specific duty cycle. It consists of two inverters, each connected to two other logic gates, most commonly NAND gates. In this particular multivibrator, there is also a trigger terminal, which is used to initiate the oscillation. When a positive voltage is applied to the trigger terminal, the output of the first inverter is enabled. This then triggers the output of the other inverter, creating a symmetrical rectangular waveform at its output. The 74HC423N,652 has a wide range of applications in the electronics industry, such as switches, analog signal modulation, and frequency dividers. Its versatility comes from allowing the designer to easily control pulse-width modulation of an analog signal. This is achieved by varying the voltage of the trigger terminal. In this way, the output waveform of the 74HC423N,652 can be programmed in a variety of different ways. When it comes to its general working principle, the core operation of the 74HC423N,652 can be explained as follows. First, a signal is applied to the trigger terminal, which causes the output of the first inverter to become enabled. This then triggers the output of the other inverter, forming the necessary symmetrical rectangular waveform. This waveform is then fed back to the input of the first inverter, creating a positive feedback loop. This process is repeated, until the output of the first inverter is disabled, resulting in the termination of the constructive interference.It is also important to note that the output of the 74HC423N,652 is not affected by the noise present at its inputs, as a result of its logic design. This is due to the fact that the logic gates used in the multivibrator are insulated from the external noise, ensuring that the output of the multivariator remains stable, regardless of external disturbances.In conclusion, the 74HC423N,652 is a type of two-stage multivibrator, which is used to generate a symmetrical, rectangular waveform of a certain duty cycle. Its application field is quite extensive and it can be used for a variety of purposes, including pulse-width modulation, analog signal modulation and frequency dividers. Its general working principle involves applying a signal to the trigger terminal, which initiates the oscillation of the multivibrator. The resulting output signal can then be used in an electronic circuit to complete whatever task was programmed.

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