SN74LV393APWRG4

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The SN74LV393APWRG4 is a low voltage logic device that falls within the broad subcategory of logic counters, dividers, or scalers. This device is used to divide and scale digital signals such as clock frequencies, data streams, and other logic-level signals. This device is used for many different purposes, including digital signal synchronization, frequency division, arithmetic and logical calculations, pulse counting, data formatting and conversion, and other digital signal functions.

The SN74LV393APWRG4 is a dual 4-bit binary counter that is designed to count up to fifteen, which can be changed by manipulating the binary configuration of the counter’s input/output pins. The device contains two cascaded 4-bit binary counters with separate clock input pins, an asynchronous reset pin, and an asynchronous set to fifteen pins. The outputs of each of the four-bit binary counters are connected to the inputs of the other. This allows the device to count up to fifteen, after which the output of the second counter will remain at logic one until the reset pin is triggered.

The logic state of the four bits composing the counter can be used as an address, which is convenient for memory applications. One common use of the counter is as an up/down counter. When the direction control pin (DIR) is pulled low, the output of the first binary counter will be low if the count is even, and will be high if the count is odd. Conversely, the output of the first binary counter will be low if the direction control pin (DIR) is pulled high and the count is odd, and the output of the first binary counter will be high if the direction control pin is pulled high and the count is even. The SN74LV393APWRG4 can also be used as an 8-bit counter by enabling two of the output pins and configuring the direction control pin (DIR) to act as an enable input.

The SN74LV393APWRG4 is a great choice for applications that require the ability to scale or divide digital signals. Its low voltage design makes it ideal for low power applications, and the ability to count up to fifteen gives it added flexibility. Additionally, the 4-bit counter output can be used as an address, which makes it well suited for a wide range of memory applications.

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