SN74ABT16821DLRG4

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Logic divider circuits are integrated circuits that divide an input line into two or more distinct output lines. These circuits are commonly used in a variety of applications such as audio frequency control, frequency division, and logic gates. In this article, we discuss the SN74ABT16821DLRG4, a logic divider circuit, and its application field and working principle.The SN74ABT16821DLRG4 is a dual 4-bit edge-triggered flip-flop. It is designed to perform edge triggered Divide by 4 (D/4) frequency division with rising or falling edges. The device requires a minimum of ten inputs which include the clock, reset, dual bi-directional buses for data entry and readout, and two busy signals. All these input signals are provided by the internal logic circuit present in the device. The output of the device includes two CMOS outputs for the data readout and two LED outputs for the busy signals.The device is suitable for a wide range of applications such as in digital filtering, phase generation, or frequency division. It also comes with a variety of features such as automatic phase/frequency alignment, integrated two-step divide-by-four flip-flop, and low power dissipation. The device is housed in a 3.94mm X 3.14mm SO-14 package and operates at a voltage range of 1.2 to 3.6V.The basic idea behind the divider circuit is the ability to divide an input clock frequency by a factor of two. This is accomplished by using an edge triggered flip-flop, where the output on both the rising and falling edges of the clock is inverted. To achieve a divide-by-four frequency division, two edge-triggered flip-flops are used together. The diagram below shows a sample circuit.The two flip-flops are smaller versions of the JK, SR, or D flip-flops. When the clock signal is applied to both flip-flops, the first flip-flop acts as an edge detector and captures the current state of the clock. The second flip-flop then captures the opposite state on the other edge of the clock. This results in a divided frequency of half of the original frequency.The SN74ABT16821DLRG4 uses this same principle, but with a few added features. The first is a bi-directional data bus that allows data to be entered and read out of the device. This can be used to control the frequency division. The second is a reset function that can be used to reset the internal logic circuit of the device. Lastly, there are two LED outputs that can be used to monitor the busy status of the device.In conclusion, the SN74ABT16821DLRG4 is a dual 4 bit edge triggered flip-flop designed to perform edge triggered divide-by-four (D/4) frequency division with rising or falling edges. This device is suitable for digital filtering, phase generation, or frequency division applications and comes with a variety of features such as automatic phase/frequency alignment and low power dissipation. Additionally, the device includes bi-direction data buses, reset inputs and LED outputs that are used to monitor the busy status of the device. These features make the SN74ABT16821DLRG4 an ideal choice for frequency division and logic gate applications.

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