MC74LVX373DTR2

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Logic circuit consisting of latches, flip flop and related devices is the most fundamental building block of an digital system. In a digital logic latches consist of two distinct parts. The first part is constructing the state elements, this is the composition of the register portion of the memory that store data such as computer memory, flash memory, and RAM. The second part can be used to build logic circuits as a switch that can latch signals over a given time. MC74LVX373DTR2 is a 16-bit latch device for digital computation, memory and processor. This article will discuss the application field and the working principle of MC74LVX373DTR2.

1. Application Field:

MC74LVX373DTR2 can be used in asynchronous FIFO (First In Last Out) buffer memory control that gives high speed access with no propagation delay. Moreover, it can be used to synchronize signals from different registers, sequencers and control register counters. It can also be used for latching and routing data, address and control signals for microcontrollers. Furthermore, this product can be perfectly portable in a wide range of digital applications such as data shifting, memory control, arithmetic logic unit and data routing.

MC74LVX373DTR2 also provides a wide range of benefits compared to other types of latches and flip-flops. Its clock-enable functionality allows to deliver improved performance in 10/12-bit data multiplexer, system arbiters, and asynchronous FIFO buffer memory. Furthermore, it minimizes the number of input signals due to its latch-enable feature, thus reducing the system power consumption.

2. Working Principle:

The MC74LVX373DTR2 latch consists of two pins for Clock (C), and two pins for Data Bus (D). At the rising edge of the Clock pin, the content of the Data Bus is latched from the Data Bus to the internal register of the device. The output of the device is available at the Output pins, dependent on the state of the Latch Enable pin. The two Data Bus pins can be independently either direct-connected or driven through a bus driver.

The Clock signal can be either high or low, while the Data Bus is being transmitted. At the rising edge of the Clock, the Data Bus content is transferred to the internal register of the MC74LVX373DTR2. The device then holds the content until the next rising edge of the Clock. This device also features independent Latch enable pins, which can be used to retain and release the content of the internal register in response to an externally applied signal.

The MC74LVX373DTR2 device can operate at 2.5V to 3.6V and is compatible with 3.3V and 5V logic families. It is offered in the package type of 16-DIP, 16-SOIC, and 16-TSSOP, with a typical power dissipation of 23mW. The device operates in operating temperature range of 0°C to 70°C and can provide a power saving shutdown function.

In conclusion, the MC74LVX373DTR2 is a versatile, 16-bit latch device built for digital computations, memory, and processor applications. Benefiting from its clock-enable and latch-enable functionalities, the device can perform many operations, from synchronizing signals from different registers to latching and routing data and address/control signals. It is versatile, operates at 2.5V to 3.6V, compatible with 3.3V and 5V logic families, and offered in different packages.

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