74HC245DB,118

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The 74HC245DB,118 is part of the HC family of logic logic devices. It functions as a logic buffer, driver, receiver, and transceiver. It is commonly used in computers and other digital integrated circuits. In this article, we will explore the application field, working principle and features of the 74HC245DB,118.

Application Field

The 74HC245DB,118 is a wide level shifter which transfers data among high voltage, low voltage and CMOS logic families. The device shifts input signals of up to 24-V operating voltage to the TTL voltage levels, which can drive a 10-mA sink or source load. As it is fast and has series 24 50-OHM impedance matching, it is an ideal option for clock acceleration and decoupling applications. It can also be used to debug digital circuits, which serve signal interface requirements between low voltage and CMOS logic families.

Working Principle

This device functions as a logic buffer, driver, receiver, and transceiver, as mentioned above. The buffer section provides a fan-out of 10 LS-TTL loads. The driver section has three oxides loaded open-drain outputs for driving high-capacitance loads. Also, the outputs are designed to be wired together to form a single open-drain output or be connected to a pull-up resistor for open-drain operation. The receiver section provides two three-state outputs for driving low-capacitance loads or be connected to a pull-up resistor for open-drain operation. Finally, the transceiver section provides three-state outputs for driving low-capacitance loads.

Features

The 74HC245DB,118 is an equity part of the standard HC logic family with features such as high speed, high drive, low power consumption, and pull-up resistors. It has a wide voltage supply range, from 2V up to 5V. It has a high noise immunity of 0.1V. Also, it is equipped with an active-low active-high design and multiple supply voltage options, making it highly versatile and suitable for all types of applications. Furthermore, the device is fully TTL-compatible which allows for direct transfer of logic signals without the need for additional levels of logic conversion.

In conclusion, the 74HC245DB,118 is an invaluable asset for digital circuits and computer electronic circuits. It can be used to transfer data among high voltage, low voltage and CMOS logic families. Moreover, it is highly versatile and has plenty of features such as high speed, high drive, low power consumption, and pull-up resistors. Therefore, it is only suitable for applications where maximum performance is required.

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