MC74ACT157DG

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The MC74ACT157DG is a selectable decoder/demultiplexer containing four 2:1 inputs, one 4:1 input and four outputs. It receives data from an address bus and decodes the three most significant bits to select one of eight active low outputs. This device is designed to optimize the use of decoders and multiplexers in digital applications while providing a wide variety of applications. The MC74ACT157DG has a compact footprint and is especially suitable for low-power logic functionsc.

The device can be used to expand logic systems, increase system speed and reduce wiring complexity. It can also be used in a variety of signal switching applications such as: multiplexers, decoders, address decoders, signal routing, and signal multiplexing.

The working principle of the device is simple. The four `2:1` inputs are selected by three most significant bits of the address bus, and the four outputs are activated according to the corresponding `2:1` input and the `4:1` input. As a result, the MC74ACT157DG can be used to select a single output from any of eight possible combinations of `2:1` inputs. This allows it to be used in applications requiring multiplexing and/or demultiplexing.

The MC74ACT157DG is well-suited for use in general-purpose digital logic and interface applications. The device is capable of switching signals within a wide voltage range (3V-5V) and operates at very low power consumption. It also features an active low output, which is ideal for use in logic systems with a wide variety of power supplies. Additionally, the device is designed for high-speed operation and exhibits excellent propagation delays for both low-to-high and high-to-low transitions.

The MC74ACT157DG is a versatile device suitable for a variety of applications. It can be used as a single-bit multiplexer/demultiplexer or as a selectable decoder/demultiplexer. It can also be used in signal switching applications such as: address decoding, data routing, data multiplexing, and signal routing. In summary, the MC74ACT157DG is a widely-used and reliable logic device with a wide range of applications.

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