SN74ALS273N

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Logic gates are elementary components of digital electronics circuitry. Flip flops are a type of logic gate used for storing information in sequential logic following a set of commands. The SN74ALS273N is a Dual Master/Slave Flip Flop integrated circuit manufactured by Texas Instruments. It is composed of two flip-flop circuits. Each flip-flop manages a signal, one master and one slave. This makes the SN74ALS273N ideal for digital signal processing. In this article, we will discuss the applications and working principle of the SN74ALS273N.

Applications

The SN74ALS273N is used in a variety of applications, such as digital signal processing, clock synchronization, and data storage. Its extensive usage can be appropriated to its two individual flip-flop circuits, the master and the slave. During digital signal processing the master flip-flop stores the most recent information and the slave is used for the comparison of the newly received data. Clock synchronization is achieved due to its integrated crystal oscillator which ensures that the master and slave circuits reach their respective states at the exact same time. Data storage applications benefit from the chip’s ability to clearly distinguish between two values, allowing for the tracking of two individual channels of data. The versatile Slave/Master combination of this device makes it a useful component in these various applications.

Working Principle

The SN74ALS273N is a dual flip-flop peripheral unit employing separate master and slave devices. It has both positive and negative logic circuits, meaning that it can accept both positive and negative inputs and act on either one. When power is initially turned on, each flip-flop will be reset, meaning both outputs Q and Q* will be set to low. Each flip-flop has a Data Input (D), an Enable Input (E) and four output pins that are labeled Q, Q*, Clocked Data (CD) and Complementary Data CD*. The Data Inputs represent the logic levels that you wish to store in the state of the flip-flop. When a low signal is sent to the Enable Input, the state of the flip-flop remains unchanged. When a rising edge is applied to the Clock Input, the current D and E values are saved in the flip-flop which is now in a triggered state. The Q and Q* output pins show the inverse logic states of the current contents of the flip-flop. The CD* and CD pins show True and Complementary Data, meaning they represent the exact same logic state, one of which is active-low while the other is active-high.

Summary

The SN74ALS273N is a Dual Master/Slave Flip Flop integrated circuit that can be utilized in a wide array of applications due to its versatile combination of two individual flip-flop circuits. The SN74ALS273N operates on both positive and negative logic and also updates both output Q and Q* every time it is triggered by a rising edge on its Clock Input. The SN74ALS273N is an important component in digital signal processing, clock synchronization, and data storage.

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