CD4047BE

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Logic - Multivibrators, such as the CD4047BE, are devices used to create electronic oscillators. While having limited applications in comparison to digital logic chips, their use extends from controlling the speed of electric motors to producing electrical signals for digital circuits. The CD4047BE is a combination logic flip-flop and oscillator which uses a bi-stable state as its operation principle.

Overview of the CD4047BE

The CD4047BE is a CMOS-based integrated circuit that was first released in 1992. It is manufactured by the Texas Instruments Company and is a component of their 4000B CMOS Logic Series. The chip is an oscillator circuit that can produce either a continuous square wave or a single pulse. It is a 14-pin device that operates with a power supply voltage ranging from 4.5V to 18V.

Clocking Inputs

The CD4047BE circuit contains two separate sets of clocking inputs, A and B, that are used to control the flip-flop’s output. Setting input A to a logic high and input B to a logic low sets Flip Flop A to an “on” state. Setting input B to a logic high and input A to a logic low sets Flip Flop B to an “on” state. The flip-flop’s output will depend on which of the clocking inputs is active at a given time.

Timing Capacitor/ Resistor Network

The CD4047BE oscillator also consists of a timing capacitor/ resistor network which allows the user to control the frequency of the output waveform. When a logic high is present on the clock input A, the capacitor will charge up until a certain threshold voltage is reached at which point Flip Flop A will be triggered and the output will go high. When the output is high, the capacitor is discharged rapidly and the output will then go low. The timing capacitor/ resistor network allows the user to control the rate at which the capacitor charges and discharges and therefore the frequency of the output waveform.

Applications of CD4047BE

The CD4047BE can be used for a wide variety of applications that require an oscillator circuit. It is commonly used for producing a digital clock signal for controlling the speed of electric motors, as well as producing clock signals for digital circuits used in computers and other electronic devices. The CD4047BE can also be used to generate complex waveforms, such as sine waves, by using it in combination with other components.

Conclusion

The CD4047BE is an important component in many electrical and electronics applications. It is a combination flip-flop and oscillator that can be used to produce many different types of waveforms, including square waves, sine waves, and other complex waveforms. The CD4047BE also has two clocking inputs that allow the user to control the frequency of the output waveform. It is an important component in many different applications, ranging from controlling the speed of electric motors to producing clock signals for digital circuits.

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