74LVCH2T45DC-Q100H

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The 74LVCH2T45DC-Q100H logic level translator is a product from NXP semiconductors. It is a members of a family of devices from NXP that are logic translators, level shifters and programmable logic devices. It is a small outline package (SOP) with a width of 6.5mm.

The main application of the 74LVCH2T45DC-Q100H is for interfacing between low voltage TTL circuits and higher voltage CMOS ICs. This IC can be used in tacking systems, robot control systems, home appliance controllers, electric equipment control panels and in many other applications where logic translation is required.

The working principle of this IC is based on bi-directionally level shifting functionality which converts between two different logic families. It contains a buffer with two active stages. Input data is level shifted to the other side by the “A” stage and then buffered by the “B” stage on the other side with the output signal being the same as the input signal.

In addition, the 74LVCH2T45DC-Q100H IC also includes an active reset signal generator on both the input and output sides. The reset signal generator is triggered by an output enable enable (OE) signal, when the OE signal is low the reset system is activated. This allows for resetting of the circuit when power is applied.

The 74LVCH2T45DC-Q100H also contains an output enable signal buffer circuit which acts as a clock synchronization circuit. This circuit will synchronize the logic signals on both sides of the translator. It is equipped with two input pins (TR1 and TR2) and three output pins (TR3, TR4 and TR5). When one of the two input signals (TR1 and TR2) is high, the output enable signal (TR3) is low, which then results in the other two output signals being low.

This IC has a few limitations. It can only translate between two different logic families. It does not support bi-directional communication and its output is limited to a single logic state. It is also limited in terms of speed, it can only perform up to 8Mb/s translation.

In summary, the 74LVCH2T45DC-Q100H is a logic translators, level shifters device from NXP. It is designed to interface between TTL and CMOS devices and can be used in a variety of applications. It features bi-directional level shifting, a reset signal generator and an output enable buffer circuit which can synchronize the logic signals of both sides.

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