KA556

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Programmable timers and oscillators are versatile as both a clock and timing generator with a wide range of application fields. Among them, the KA556 Programmable Timer/Oscillator is a popular choice for its features and reliability. This article will discuss its application fields and working principle.

Application Fields

The KA556 can function as a timer, oscillator, or analog oscillator clock, enabling it to be used in different scenarios. It is most commonly used as a battery-backed oscillator clock, providing timing solutions in any application requiring a continuous reference source.

It can also be used in clock and timing management systems that require critical time synchronization such as time and attendance tracking systems, digital signage systems, and any system where accurate time reference is essential.

The KA556 is also ideal for interactive displays, game consoles, vending machines, and other systems that require sound, motion, or other effects to be triggered at predetermined intervals. The programmable timer/oscillator also allows for predictable and repeatable control of sequencing and sequencing events.

Working Principle

The KA556 integrates both a programmable timer and oscillator in one device. It has two outputs, each with its own enable signals. The outputs are controlled by a 32-bit programmable memory, allowing for different settings to be registered and called as needed.

The programmable timer counts in a preset sequence, while the oscillator acts as a reference source to synchronize the timer output. When the timer is enabled, it will count down to 0 in a linear pattern with each tick taking a fixed amount of time. The amount of time it takes for one tick is determined by the frequency of the oscillator.

Once the timer reaches 0, the output will stay low for a predetermined period of time before resetting itself and starting the timer countdown again. This allows for precise control of how long an output stays active or inactive.

The KA556 also features an integrated battery-backup function, which allows it to remain operational even when the main power source is turned off. This ensures that the timer will be able to maintain its sequencing schedule even in the event of a power outage.

Conclusion

The KA556 is a reliable and versatile programmable timer/oscillator that can be used in a variety of applications. It can provide accurate and repeatable timing solutions, while also offering the convenience of being battery-backup enabled. With its numerous features and application fields, the KA556 is an excellent choice when it comes to clock and timing management systems.

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