74ACT158SCX

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The 74ACT158SCX is a quad 2-to-1 multiplexer/multiplexer/decoder logical circuit that makes it easy to switch among four different inputs. As a result, this device is used in many applications which require switching between similar signals.

The 74ACT158SCX comprises of four bidirectional buffers with two active low select inputs. Each buffer is configured as a 2-to-1 multiplexer/multiplexer/decoder. The active low select inputs determine whether a low or high logic level is outputted from the multiplexer. A select input of ‘1’ will cause the output to be a high logic level, where as a select input of ‘0’ will cause the output to be a low logic level.

The 74ACT158SCX is a suitable logic circuit for applications where one of two signals needs to be selected. Examples of such applications include switching between secondaries in a transformer, or for digital data multiplexers.

The working principle of the 74ACT158SCX is as follows: when the select inputs (A and B) are in the low logic level, the multiplexer output is in the low logic level, while when they are at the high logic level, the multiplexer output is in the high logic level. This allows an user to switch between the four different inputs according to the logic state of the select inputs.

In summary, the 74ACT158SCX is a versatile logic circuit suitable for applications which require switching between similar signals. Its low and high select inputs enable it to switch between the four different inputs, making it an ideal choice for digital data multiplexers and for transformer secondary switching.

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