SN74LVT573DWR

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Logic - Latches is a category of devices and technologies that are used to temporarily store and maintain a logic state. In this category, the SN74LVT573DWR is a low-voltage octal D-type transparent latch that is used for data transmission. This application field and its working principle will be discussed in this article.

The SN74LVT573DWR, with a single chip solution, is mainly for interconnecting, buffering, and transmission of data in automotive, industrial, and communication applications. It is built on TI’s LVT process, and it can reduce system power consumption by as much as 25%. In addition, the device has an operating voltage of 1.30V to 5.5V, and its low logical thresholds (VIH min and VIL max) allow reliable signal integrity over the full range of operating voltages.

The SN74LVT573DWR is designed as an octal transparent latch. It can be used to store eight bits of data. It has eight data input (D) pins. When the latch enable (LE) pin is high, data that has been applied to the data input pins is stored in the latch, and the data output (Q) pins reflect the stored data. When LE is low the latch is transparent, and the data I/Os are in a high-impedance state. There are also two async reset pins (MR1, MR2) that will restore all output pins to the low state regardless of their current logic state when asserted.

The SN74LVT573DWR operates off of a single or dual supply voltage. When running off of a single supply voltage, the voltage range is 1.3V to 5.5V. For a dual supply, the supply range is 2.3V to 5.5V. At the undervoltage threshold the device actively goes into the reset state, and when the input voltage reaches the UVLO rising threshold the device recovers quickly and latches the data input (D) pins.

The SN74LVT573DWR provides protection from potential Electrostatic Discharge and latch up due to its internal ESD clamps. It has a low-power consumption of typically 75 μW, a maximum clock frequency of up to 50 MHz and a 19 pF typical input capacitance. The device is also designed with a typical propagation delay of 5.8 ns and a maximum propagation delay of 12 ns. All these specifications provide the device with high performance, speed and power efficiency.

In conclusion, the SN74LVT573DWR is an efficient octal D-type transparent latch for data transmission applications, with fast speeds and low power consumption. Its one chip solution, low voltage operation and internal ESD protection make it a reliable device in a wide range of application areas. Furthermore, its high performance, speed and power efficiency also provide great value for its users.

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