MC74VHC86DR2G

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The MC74VHC86DR2G logic gates are used in a variety of electronics applications. This gate is one of the most versatile and cost-effective logic gate series. It is often used in applications where low quiescent power and high speed operation are desired. The MC74VHC86DR2G is a four-input XOR Gate with both the inputs and outputs in the same package.

Concept of XOR Gate

The concept behind XOR Gate is defined as "excess-3" encoding. This is a term used to describe the logic operation where one input is converted to another binary value using the inputs X and Y, as shown in the truth table below. In this case, when both inputs are high or both inputs are low, the output is low. However, if one input of the gate is high while the other is low, the output of the gate is high.

For the MC74VHC86DR2G logic gate, the highest speed of operation is approximately 60MHz, with a propagation delay of less than seven nanoseconds. The output stage of this logic gate operates at a low voltage of approximately 0.7V, making it a suitable choice for operation in low-voltage systems. It also has a very low quiescent power supply of only 180 microamps.The MC74VHC86DR2G is also available as a buffer type gate, which has an input stage with a constant low voltage of 0.8V, offering excellent noise immunity even at higher frequencies.

What is it Used For

The MC74VHC86DR2G logic gate is mainly used in digital circuit designs. It is particularly suited for applications in which low quiescent power and high speed operation are required. Applications include use in digital multiplexers, video interfaces, digital audio, and logic signaling and switching applications. The low quiescent power of this logic gate makes it ideal for use in battery-powered or portable electronics. It is also used in logic circuits which require precise timing, since the propagation delay of this gate is relatively low.

Conclusion

The MC74VHC86DR2G is a versatile and cost-effective logic gate that is often used in a variety of applications where low quiescent power and high speed operation are desired. Its low voltage output stage, as well as its low quiescent power supply make it ideal for use in portable and battery-powered electronics. This logic gate is also characterized by a relatively low propagation delay, making it suitable for use in applications which require precise timing.

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