74AHCT125D,118

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The 74AHCT125D,118 is a low power, low voltage quad buffer/driver from Texas Instruments. It belongs to the Logic - Buffers, Drivers, Receivers, Transceivers family. This device is designed for fast switching applications that cannot be performed with traditional logic devices.

The basic operating principle of the 74AHCT125D,118 is straightforward. It is basically a set of four high-gain, high-speed digital logic buffers with input logic levels that can be adapted to the input logic levels of a wider range of digital systems. Each device\'s input and output stages are internally connected to each other and provide a direct connection between the input and output. The basic input stage comprises of a differential amplifier which amplifies each input signal, while simultaneously performing an active level shifting. The output stage comprises of an open collector type with active pull ups, which actively switch the output signal from low to high and vice versa.

The 74AHCT125D,118 can be used in a variety of applications. They are typically used for expanding the number of inputs and outputs in a particular system by buffering several signals together and converting them to one single signal. As a result, this device is suitable for multiplexers, data conversion, and signal level shifting applications. With its input and output switching levels of -0.8V/0.8V, the device can be used for both TTL and CMOS compatibility. Furthermore, it is suitable for logic gate expansion, clock and data buffering, bus arbitrating, and digital logic interfacing applications.

The 74AHCT125D,118 has a variety of features that enhances its versatility and reliability. It has a fan-out of four and an output drive capability of 16mA (Low) and 24mA (High). It has an operating temperature of -55°C to 125°C and a maximum propagation delay of 10ns at VCC of 5V. Furthermore, it has an active input VIL of -0.8V and active input VIH of 0.8V and an active output VOH of 0.4V. Lastly, it has low static power consumption of 0.4mA and a low internal power dissipation of 0.63W.

In conclusion, the 74AHCT125D,118 is a low power, low voltage quad buffer/driver. It is a part of the Logic - Buffers, Drivers, Receivers, Transceivers family. It is designed for fast switching applications that cannot be performed with traditional logic devices and is used for expanding the number of inputs and outputs in a particular system, multiplexers, data conversion, level shifting, and digital logic interfacing applications. It is equipped with a variety of features that enhances its versatility and reliability such as a fan-out of four and an output drive capability of 16mA (Low) and 24mA (High).

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