NLV4HC4040ADTR2G

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The NLV4HC4040ADTR2G integrated circuit belongs to the logic family, specifically within the counters, dividers class. This logic device can be used in many areas and it has a working principle that one must understand in order to properly use it.

The NLV4HC4040A is a presettable divide-by-n counter integrated circuit containing 4 identical, independently operated counters. This device has wide range of application possibilities. It can be used in frequency divider and counter applications, frequency measurements and timer, astable or monostable multivibrator or applications that require pulse position modulation.

One of the main advantages of NLV4HC4040A is that this device can be operated in two modes ; Up/Down operation as well as two independent Up/Down operations. Additionally, this IC includes outputs that can be synchronized with incoming signals that can make it increasingly useful for many application purposes. All these features are contained within a small 14-pin package.

The NLV4HC4040ADTR2G has a circuit based on a synchronous 4-bit binary down/up counter, with an internal look-ahead carry. An internal prescaler and modulus counter adding flexibility to the counting capabilities of the device. A Preset allows the user to reset the counter part to any desired count.

The counter logic is designed in a way that allows the user a wide input frequency range. The device has particular characteristics in terms of its power source, which can range from 3V to 18V ac or dc, under those conditions working within a temperature of -40\'C to 85\'C.

The inputs use very low power, making them ideal for portable applications in which space and operating power is limited. The maximum input clock frequency identified as fmax is dependent on how the device is configured and its internal operating temperature, when tested at 85\'C it was found to be 6 MHz with a 5V DC power supply.

The working principle of the NLV4HC4040ADTR2G has a simple logic process. The counter has four distinct clock inputs that rotate one bit at a time under a specific clock frequency, hence each time a bit rotates the counter up or down. In independent mode, each clock input controls its own variable direction. The control signal will decide whether the counter decreases or increases its number.

In addition to this, the IC has two internal toggle register that completes the logic process. The register helps the IC precisely detect the value of the counter and whether it should proceed with incrementing or decrementing this number. The data input/output is done on the positive edge of the clock signal, as the finalising logic cycle of the NLV4HC4040A.

To conclude, NLV4HC4040ADTR2G integrated circuit can be used in a wide range of applications including frequency divider and counter applications, frequency measurements, timer, astable or monostable multivibrator or applications that require pulse position modulation. Its working principle varies depending on the type of mode used, either Up/Down operation or two independent Up/Down operations. This device is very advantageous due to its capability of working with a wide range of input frequencies thanks to its internal configurations. Furthermore, its power requirements make it ideal for portable applications such as mobile devices.

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