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Logic - Latches

A latch is a type of digital circuit, operating in either an open or closed state. It plays an important role in many different types of digital circuits and systems. In this article, we look at the SN74LVC16373DLR which is a latch device. We will explore its application field and working principle.

SN74LVC16373DLR Application Field

The SN74LVC16373DLR is a low voltage, dual, non-inverting transconductance latch. It is designed to provide a low voltage, low power, CMOS solution for data retention. It is frequently used in applications such as high-speed digital switching, sample and hold, and data acquisition systems. It is also used as a data selector. This device features an asynchronous reset, dual output enable/disable, and a power-on reset.

This device is also used in low-voltage logic applications, such as low-cost microcontroller applications, and memory and logic cards. The device has both a logic and a data retention function, making it a desirable choice for many types of low power applications. It has a low-voltage, high-speed CMOS interface and high-power latch capability.

The device is exceptionally suitable for use as a low-power, low-cost, and fast switch-mode data selector. It is also widely used in low noise video amplification, analog switches and cross points applications, as a low-noise switch-mode multiplexer, and other high speed logic applications.

SN74LVC16373DLR Working Principle

The SN74LVC16373DLR is a dual, non-inverting transconductance latch. Its operating voltage range is between 2.5V to 5.5V. The device has an asynchronous reset, dual output enable/disable, and a power-on reset. The device has current source and sink capability.

The device has two distinct sections, one for the logic circuit, and one for the data retention. The logic circuit is composed of two CMOS inverters and two pass transistors. The data retention section is composed of two P-type metal oxide-semiconductor (PMOS) channels, two N-type metal oxide-semiconductor (NMOS) channels, using the cross-coupled PMOS/NMOS used in conventional CMOS latch design. It uses the following principles.

When the input is HIGH, the PMOS transistor will be turned on, providing a path to the output. This will also cause the output of the first inverter to be HIGH. When the input is LOW, the PMOS transistor is turned off, and the NMOS transistor is turned on, providing a connnection to the output. This will also cause the output of the first inverter to be LOW. This is the basic working principle of the SN74LVC16373DLR.

Conclusion

The SN74LVC16373DLR is an important type of latch device, and it is widely used in many low voltage applications. The device has an asynchronous reset, dual output enable/disable, and a power-on reset. It works on the principle of the cross-coupled PMOS/NMOS channels. We hope this article has helped to explain the features and capabilities of the SN74LVC16373DLR.

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