SN74LVTH373PW

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SN74LVTH373PW Logic - Latches Application Field and Working Principle

SN74LVTH373PW is an advanced storage latch of the TTL series, which is mostly used in system control and other situations that require data storage and control.

Application Field

The SN74LVTH373PW logic latch has extensive applications in various fields. For example, in the full closed-loop control system, the SN74LVTH373PW logic latch is used for controlling the on/off status of the circuit, that is, open and close the circuit. In a lift system, if people want to open the lift door, they need to press the corresponding button control, so the SN74LVTH373PW logic latch can be used to control whether the lift door is open. In another example, in the transmission system, it is used to decide whether the data will be sent or stored, which can be called a temporary latch.

Working Principle

The SN74LVTH373PW TTL logic latch is mainly used to control signal storage or current circuit status. The actual operation is realized by using four NAND gates and inverting amplifiers. Depending on its structure and function, it is mainly divided into two types: level storage latch and edge storage latch.Level Storage Latch: Level storage latch is a latch that needs to be set depending on the level of voltage. It needs to be set by the high level of the signal. Once the signal reaches the high level, the level storage latch is set up and the signal output is turned on. Edge Trigger Latch: Edge trigger latch is a latch that needs to be momentarily triggered by the falling edge of the input signal. As long as the signal momentarily reaches the low level, the edge trigger latch will be set up. For example, if the signal has a rising edge from 0V to 5V, the signal output will be on during the rising edge of the input signal. The SN74LVTH373PW logic latch also has a reset signal input interface for setting the logic latch to 0. When the logic signal of this signal interface is at high level, the logic latch will be reset.

In summary, SN74LVTH373PW is a TTL series advanced storage latch, which is mainly used in system control and other situations that require data storage and control. It is divided into two types including level storage latch and edge trigger latch, and it also has a reset signal input interface for setting the logic latch to 0.

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