74ACT373MSAX

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The 74ACT373MSAX is a type of D-type transparent latch, often used in digital electronics. It is an 8-bit latch device, containing two separate four-bit latches with \'update\' capabilities. This part is designed to operate with a supply voltage of 3 to 3.6 volts and is classified as a logic device. This device is fabricated using advanced CMOS technology and is able to operate up to frequency of 25 MHz with a steady state power supply current of 260 μA.

Application Field

The 74ACT373MSAX may be used in different applications, most notably in data storage and accessing systems. This type of device is particularly suitable for applications when instant data access is not required. For example, this device may be used in memory modules, such as DRAMs, and can be employed as address latches. It is also used as a shift register, allowing for the serial transmission of data, or as a data buffer to store data for further processing.

The 74ACT373MSAX may be used in transmission systems, where its ability to store and transmit data instantaneously is particularly valuable for ensuring uninterrupted data flow. It is also frequently used in sensors and controllers, given its ability to interface digital devices with analogue environments and its fast clock speeds.

Working Principle

The 74ACT373MSAX is an 8-bit latch made up of two four-bit latches called \'A\' and \'B\'. Each latch is controlled by an output enable pin, \'AOE\' and \'BOE\', respectively. Both latches are updated and put into the latched state at the same time by asserting the \'update\' pin. When the \'update\' pin is released, the two four-bit latches can be read from or stored in simultaneously and no buffering is required. This allows for quicker operation, allowing it to switch states more rapidly than a more traditional single latch design.

The 74ACT373MSAX also has an asynchronous clear pin \'CLEAR\'. When this pin is pulled low, both latches are synchronously cleared and their outputs are in the reset state. This feature is useful in applications where complete asynchronous resetting of the latches is required, such as state machines. Finally, the 74ACT373MSAX has a common enable input \'CE\' pin, with which it can be disabled, allowing it to be used as a quad 8-bit latch.

In summary, the 74ACT373MSAX is a fast and reliable D-type transparent latch that is well suited for many digital applications. It offers the advantage of having two four-bit latches with instantaneous accessing capabilities and can be employed for various applications, such as memory modules or state machines. This type of device can operate up to 25 MHz with low supply voltages, making it an ideal choice for low voltage digital applications.

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