SN74AS74ANG4

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The SN74AS74ANG4 is a dual D-type flip flop that is based on TTL logic and available in a 14-pin dual-in-line package. It is a “dual” version of single D-type flip flops, and is typically used when the user needs more than one D-type flip flop in one integrated circuit. This device is particularly well suited for applications such as timers, frequency dividers, and shift registers, as well as applications that require two or more synchronous information sources.

The SN74AS74ANG4 belongs to the family of flip-flops, which are devices that store, shift or latch information in digital systems. They consist of two basic sections, the input section and the output section. The input section consists of a set of gates, while the output section consists of two storage units (or, “registers”) that are connected to the inputs. Flip-flops are used in a variety of applications, but are most commonly used to store and transfer digital data, particularly in digital logic circuits.

The SN74AS74ANG4, specifically, is a dual D-type flip flop, meaning it contains two D-type flip flops that operate in parallel and can store two bits of information at the same time. The device has four inputs, two for each flip-flop: CLEAR, SET, DATA IN and CLOCK. The CLEAR and SET inputs and the DATA IN input are active-low logic inputs, meaning that they will be activated when they are connected to ground. The CLOCK input is an active-high input, which means it will be activated when it is connected to a high voltage level.

The device has four outputs, two for each flip-flop: Q (the data output) and Q-bar (the complement of the data). Additionally, the device has two output enable pins, one for each flip-flop, which can be used to enable or disable the outputs independent of the clock input.

The SN74AS74ANG4 uses edge-triggered logic, meaning that the clock input must change from high to low (or low to high) in order for the data to be stored to the registers. In other words, the data is stored when the clock signal “toggles”. The flip-flops use positive edge-triggering, meaning that the data is stored when the clock signal goes from low to high. When the clock signal is low, the data is not stored, and the outputs remain the same.

The SN74AS74ANG4 is used primarily in applications such as timers, frequency dividers, shift registers, and for applications that require two or more synchronous information sources. In timers, it is used to keep track of the current time, in frequency dividers it is used to decrease the frequency of the output signal, and in shift registers it is used to store data in memory and transfer it between various devices.

Overall, the SN74AS74ANG4 is a versatile dual D-type flip flop that can be used in a variety of digital logic applications. By using edge-triggered logic and enabling independent output control, the device is ideal for applications that require reliable data storage and transfer between synchronous devices.

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