SN74LV373ATDB

Series:	74LV
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	D-Type Transparent Latch
Circuit:	8:8
Output Type:	Tri-State
Voltage - Supply:	2 V ~ 5.5 V
Independent Circuits:	1
Delay Time - Propagation:	1ns
Current - Output High, Low:	16mA, 16mA
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	20-SSOP (0.209", 5.30mm Width)
Supplier Device Package:	20-SSOP
Base Part Number:	74LV373

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Introduction about SN74LV373ATDB

The SN74LV373ATDB is a dual 3-state octal D-type latch designed to support high-speed data flow among two buses. It serves as a basic timing element and logic building block for many logic systems, particularly storage and control applications. This latch is designed to be compatible with the ANSI 5V TTL logic family while providing very low power dissipation and extremely low noise.

Application Field

The SN74LV373ATDB is a high performance, bi-directional, latch devices used to buffer data bus in a wide variety of digital systems. It is designed for use in bus oriented systems and directly interfaces the positive and negative logic terminologies of most digital IC families. The Octal D-type latch can be used in a wide variety of applications including buffering data buses, memory address storage, multiplexing and buffering of digital signals, and many others.The output enable (OE) pin of the SN74LV373ATDB can be used to enable or disable the data bus transfer signals. This versatile latch device is ideal for interfacing among multiple buses and data pathways where data is being shifted or multiplexed. The OE provides a level of control and data flow management allowing for a reduction in the number of control lines.

Working Principle of SN74LV373ATDB

The SN74LV373ATDB is an octal D-type latch that operates in a 3-state manner. It consists of eight inputs which can be connected to two different buses. These inputs are then buffered into eight outputs. Each output is controlled by a dedicated output enable (OE) pin. The data that is released from the latch can be transacted in two different transfer paths. The first one is data release from the latch to the two buses, through the outputs. This is enabled once the OE is activated. The second one is data storage from the two buses to the latch, through the inputs. This is enabled once the write enable (WE) is activated.The SN74LV373ATDB works based on a 3-state operation. The 3-state means that it is possible to disable any of the outputs, allowing data to be tri-stated. This is enabled by a logic high signal in the OE, while a logic low signal enables the outputs. When the OE is enabled and the latch is storing data, the OE will control the output. When the OE is disabled, it will act like an open switch and the data will not be able to flow out of the latch.

Conclusion

The SN74LV373ATDB is a powerful and versatile octal D-type latch designed to buffer data bus in a wide variety of digital systems. It serves as a basic timing element and logic building block for many logic systems, particularly storage and control applications. With its 3-state operation, this device can be used in multiplexing and buffering of digital signals and many others, making it ideal for interfacing among multiple buses and data pathways.

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