M74HC390RM13TR

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The M74HC390RM13TR is a very popular choice for a data counter or divider, due to its many desired features, including a high speed operation of up to 150MHz, 20pF drive capability, low power consumption, and various packages. It is an 8 bit binary up/down counter with a separate asynchronous reset input and an output that functions as an 8 bit data holder. By using the appropriate logic, this IC can be used as a programmable divider and can be configured to divide one input frequency by any desired number (decade counter). It further offers control input pins which allow it to be used as a Ripple Counter.

The M74HC390RM13TR is a synchronous 8 bit up/down binary counter with dual Clock (CP0, CP1) inputs and five Control inputs for higher clock speed and flexibility. The device also has two enable inputs and a single Reset Input which can be used as a synchronous and asynchronous reset inputs, as well as a separate enable/disable Function. The M74HC390RM13TR features an Output Buffer which allows the output to be used as a data holder and also a Programmable Divider. The functionality of the output buffer and programmable divider can be enabled/disabled by using the Enable/Disable function.

The working principle of the M74HC390RM13TR is simple. It is a relatively simple circuit design based on some basic logic gates, with a few extra components in order to implement the enable/disable and the output buffer functions. At its basic level, the design consists of two 8 bit registers connected in series. The first register increments when the first clock input (CP0) is triggered and the second register decrements when the second clock input (CP1) is triggered. The output of both registers are summed together and then fed into the output buffer, which is essentially a power to voltage converter, which converts the power input into a voltage output, thus creating a single 8 bit output. The output can then be used as a logical output (for example a display of a decimal value) or, if the enable/disable control input is asserted, it can be used as the divider output, where the sequence of outputs is determined by the value of its inputs.

The M74HC390RM13TR is a very versatile IC, and it has wide application fields, like clock and frequency dividers, tone and audio generators, programmable dividers, data counters, etc. It is often used in clock and frequency divider circuits, where it is used to divide an input frequency by any desired number (decade counter), or in data counter circuits, where data must be counted and stored for later use. It can also be used in audio and tone generator circuits, where it can be used to generate different tones and pitches, as well as in programmable divider circuits, where it can be used to generate an output sequence based on its input values.

The M74HC390RM13TR is a very popular choice for its versatile features, reliable performance, and wide application fields, making it a great choice for many types of applications. It offers a high speed of operation of up to 150MHz, 19pF drive capability, low power consumption, and various packaging options, making it a very capable IC for many data and frequency dividing applications.

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