M74HC155B1R

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The M74HC155B1R is a cost effective, quad 2-to-4 line digital multiplexer and demultiplexer. This device allows the selection of one of the four inputs to be routed to one of the four outputs. This device is commonly used in devices such as signal switches, multiplexers and decoders.

Application Field

The M74HC155B1R has a wide range of applications in signal switches, multiplexers and decoders. It is used in signal switching applications to select and route the input signals to the appropriate output lines. It is also used in multiplexers, where a single input can be multiplexed to multiple lines. This is especially useful in applications where the number of inputs is much larger than the number of outputs. Lastly, the device can be used in decoders to convert an n-bit binary output, such as a binary-encoded signal, into one of the two potential output signals. This is useful for applications where a digital signal needs to be decoded for further processing.

Working Principle

The M74HC155B1R consists of four 2-to-4 demultiplexers, each with a single bit input and four single bits outputs. The input to the device is the selection bit which determines which of the four inputs is routed to the output lines, and the four single bit outputs select the output lines. When the selection bit is 0, the first input is routed to the first output, and when the selection bit is 1, the second input is routed to the second output.

The 2-to-4 demultiplexers can be used for a variety of applications, including logic shifting, scaling, level shifting, and multiplexing. The device can be used for logic shifting when two logic signals of different logic families need to be converted from one logic family to the other. The device can also be used for scaling, where a 24-bit binary coded signal can be converted into multiple smaller signals. Finally, the device can be used for multiplexing, where a single input can be multiplexed to one of the four outputs depending on the selection bit.

Conclusion

The M74HC155B1R is a versatile, cost-effective device that can be used in a variety of applications, such as signal switches, multiplexers, and decoders. The device consists of four 2-to-4 demultiplexers, each with a single bit input and four single bits outputs. It can be used in applications such as logic shifting, scaling, level shifting, and multiplexing. The M74HC155B1R is an essential device for any designer looking for a cost-effective, versatile multiplexer and demultiplexer solution.

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