SN74HC393PWRG4

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The SN74HC393PWRG4 is a Dual 4-bit Binary Counter. It has two 4-bit counters in a single package, usually helpful when you need to count the status of multiple inputs, while you want to minimize the number of ICs and chip area on the PCB. The main application field of the SN74HC393PWRG4 is clock distribution and rate conversion, as well as all kinds of digital control of analog systems, such as digital frequency synthesizers and other digital vectorizing and logging applications.

The SN74HC393PWRG4 has the same function as other 4-bit binary counters, but provides a different interface design. By using two built-in 4-bit binary counter, two 4-bit counter operations can be performed in parallel. This way, the number of pins required for the application is reduced and chip size is minimized. Two counter outputs are also available for each counter, for which the RCOA and RCOB are used.

The SN74HC393PWRG4 works according to a method that can count in either forward or backward direction, depending on the clock input provided by the system. The counter can be reset anytime by the reset pin, R. Through the reset pin, the counters can be programmed to any number or reset to zero.

The SN74HC393PWRG4 contains two 4-bit binary counters with separate clock inputs CK A and CK B. The counter operates asynchronously, meaning that each clock is independent of the other. There is also an overlap output, which is used to determine when both counters are in same state, so this output can be used to generate single output signal by both counters.

The SN74HC393PWRG4 can also be used as a frequency divider. For example, it can divide the input frequency of 10MHz to 5MHz, by setting the clock signal to half of the input frequency for each counter. This way the SN74HC393PWRG4 can be used by clocking it twice to achieve the same frequency division effect.

The SN74HC393PWRG4 has the advantage of being a dual binary counter, minimizing the number of components used on the PCB while at the same time providing two synchronous outputs and one overlap output to determine when both counters are in the same state. In addition, this logic device can be used as a frequency divider, making it useful in many different applications.

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