CD74HCT221M96

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CD74HCT221M96 Application Field and Working Principle

CD74HCT221M96 is categorized under logic - multivibrators. It is also known as Dual Monostable Multivibrator. It is used in a circuit which can be triggered by an input pulse and generates two output pulses with two independent widths.

The CD74HCT221M96 can be used in the design of repeaters, decoders, dividers and time delays. It has two trigger inputs and two output lines. In order to generate a specific output pulse width, an external timing resistor or a capacitor is connected to the R and C pins.

The CD74HCT221M96 is a very versatile device and can be used in a variety of applications such as alarms, time delays, switching and counting. It is useful when a circuit needs to be triggered by an input pulse and must generate two output pulses in a timely manner.

Working Principle:

The CD74HCT221M96 is composed of two independent multivibrators. Each multivibrator consists of two transistors and two capacitors. When an input pulse is applied, the two transistors alternate their current states. This in turn, alternates the state of the two capacitors. The two transistors and two capacitors form a bi-stable circuit, which stores the input pulse and remains in that state until the next input pulse. The duration of the output pulse is controlled by the timing components R (a resistor) and C (a capacitor).

The CD74HCT221M96 is a very useful device and is ideal for a variety of applications requiring a controlled sequence of output pulses such as time delays, oscillators and alarms.

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