CD74HC123E

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The CD74HC123E is a dual retriggerable one-shot multivibrator which comes in an 8-pin PDIP package. It has two independent one-shots, each with a non-overlapping dual-input pulse signal. The CD74HC123E can be used in a variety of applications, such as alarm systems, time-delay and pulse generators, clock/event dividers, shift registers, and logic gates.

The most common application for the CD74HC123E is as a retriggerable one-shot multivibrator. This type of circuit is used to generate a pulse of a specific duration when triggered, and can be triggered again before the output pulse has finished. This can be useful for situations where it is necessary to generate a series of pulses, with each one triggered by a new signal.

The CD74HC123E works by using two non-overlapping pulses, A and B, to trigger the outputs. The A pulse sets the output high, and the B pulse sets the output low. The output of the one-shot is low until the A pulse comes in and then high for the duration of the B pulse. The outputs of the one-shot can be retriggered as long as the B to A delay time is greater than 10ns.

The CD74HC123E is available in a variety of package types and uses Schmitt-trigger inputs. It has two power supply pins, one for VDD and the other for VSS. The device also features open-collector outputs, which means that the outputs can be connected to any voltage level without damaging the device. The one-shot has hysteresis built-in, which prevents unwanted switching due to noise.

The CD74HC123E has a wide range of applications. It can be used in anti-lock brakes, digital speedometers, noise suppressors, switching power supplies, and motor speed control systems. It can also be used in industrial motion control and robotics. One of the most common uses for the device is in time-delay and pulse generator circuits. In these applications, the device can generate pulses with a high degree of accuracy and stability.

The CD74HC123E is an easy to use and robust one-shot multivibrator. It can be used in a variety of applications due to its wide input thresholds, open-collector outputs, and Schmitt-trigger inputs. It is well suited for applications where precision timing is required, such as in timing circuits, clock dividers, and logic gates. With its reliable operation and wide range of features, the CD74HC123E is an ideal choice for many applications.

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