MC74ACT273N

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The MC 74ACT273N is a member of the Moore family of monolithic counters, characterized by its multiplex signals, speed, versatility and low power consumption. The Moore family of counter-type ICs is commonly used for a wide variety of applications such as frequency counters, logic timing circuits, shift registers and pulse width modulators. A key feature of the MC 74ACT273N is that it can be connected in multiple configurations for different end applications. This enables the same IC to be used for all types of counter or logic timing type applications, making it an all-in-one device for many applications.

The MC 74ACT273N is a type of logic flip-flop (FF) device, also known as a "bistable" latch. A flip-flop is a circuit element that can remember and store one bit of information. It consists of two stable states and can transition between these two states in response to an input signal change. These flip-flops are commonly used in memory devices and registers. The MC 74ACT273N Flip-Flop consists of two interconnected outputs, typically referred to as Q and Q’. These two outputs are the two primary points of interaction between the Flip-Flop and any connected logic gates.

The MC 74ACT273N can be used as a single skip counter, where the Q output is connected to the D input, and the Q’ output is connected to the Clock. This enables the Flip-Flop to act as a counter, where the D input is triggered periodically according to the clock pulse. The Flip-Flop can also be used as a dual counter by connecting the D input to the Q output and the Clock input to the Q’ output. This configuration enables the Flip-Flop to continuously toggle between its two outputs, counting every pulse on the Clock.

Using the MC 74ACT273N as a dual-input Flip-Flop, two externally generated signals, A and B, can be used to produce two-bit outputs. This configuration utilizes two logic gates, one for each of the two data inputs, with the outputs of these two gates being connected to the two inputs of the Flip-Flop. This enables, for example, binary division to be performed, where one of the data inputs is a clock signal and the other input is a signal from an oscillator.

The MC74ACT273N can also be used as a latching flip-flop by connecting the two outputs together so that the output of the Flip-Flop will remain "on" until a pulse is received. This is a useful feature for pulse-width modulation applications, where a signal needs to be maintained at a certain level for a long period of time, before being pulled back to a low voltage state.

In summary, the MC 74ACT273N is a versatile and reliable logic flip-flop device, capable of performing a wide variety of operations. It offers a high speed and low power consumption, making it an attractive choice for many applications. The device can be used for frequency counters, logic timing circuits, shift registers and pulse width modulators, depending on its configuration.

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