SN74S124NG4

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Introduction

The SN74S124NG4 is a programmable timer and oscillator that is widely used in clock/timing applications. It is used to generate signals with adjustable pulse width and frequency. This makes it possible to optimize timing circuits and applications where reliable timing is important. The SN74S124NG4 is powered by +3V to +15V supply voltage, has an operational temperature range of -40C to +85C, and is housed in a 28-pin DIP package.

Features

• Wide supply voltage range: +3V to +15V
• Operating temperature range: -40C to +85C
• Standby current: 2mA max.
• Operating current: 7mA max.
• Programmable pulse width: 32.768ms to 5s
• Programmable frequency: 0.5Hz to 200kHz
• Two active outputs (one with an open-collector output)
• Slew rate for output pulse: 0.4V/µs min.
• Resistor/Capacitor programmable for precise timing
• 28-pin DIP Package

Application Field

The SN74S124NG4 is widely used in clock/timing applications such as security systems, automation and process control, industrial and medical instrumentation, automotive systems, and consumer electronics. It is also used in energy conversion and management applications. The SN74S124NG4 is well-suited for precise timing, providing accurate and reliable timing signals with adjustable frequency and pulse width.

Working Principle

The SN74S124NG4 works by combining a digital divider and a timing capacitor. The divider is essentially a counter that divides an input signal into two outputs, one being the output signal and the other being the reset signal. The reset signal is used to reset the divider and the output signal is used to generate a square wave pulse with adjustable frequency and pulse width. The timing capacitor is connected to the input of the divider and acts as a delay, allowing the pulse width of the output signal to be adjusted. By adjusting the values of the timing capacitor and the divider\'s reset signal, the frequency and pulse width of the output signal can be adjusted.

Conclusion

The SN74S124NG4 is a versatile and reliable programmable timer and oscillator that is widely used in clock/timing applications. Its wide operating range, low current requirement, and precise timing capabilities make it an ideal solution for applications that require reliable timing signals. With its ability to generate adjustable frequency and pulse width signals, it can be used in a variety of different applications to optimize timing circuits and applications.

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