SN74F157ADG4

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SN74F157ADG4 is a quad 2-line to 1-line data selector/multiplexer in the Logic - Signal Switches, Multiplexers, Decoders family of logic. It is suitable for a wide range of applications, where a 2-line to 1-line multiplexing function is needed. It operates with a supply voltage range of 4.5 V to 5.5 V.

SN74F157ADG4 features active-LOW enable, non-inverting data selection, and low ON resistance. The low ON resistance of the switch allows the lowest possible power dissipation compared to conventional switching circuits. SN74F157ADG4 does not feature an output latch. As such, the outputs are up-dated as soon as the select inputs are changed.

The SN74F157ADG4 consists of four independent 2-to-1 multiplexers. Each multiplexer, with two binary address inputs (A0 and A1) and one enable input (G), will choose between two data inputs, (B0 and B1). The output, Y, can be LOW or HIGH depending on the enable input and the logic level at the A and B inputs.

To understand how SN74F157ADG4 works, let\'s consider an example. If the enable input is HIGH (active LOW) and inputs A0 and A1 are both HIGH, the output Y will be High. If the Enable input is LOW, the output Y will be LOW, regardless of the logic state of the A and B inputs. When the Enable input is HIGH, the output Y will be HIGH if the logic state of A0 and A1 is 01, and LOW if the logic state of A0 and A1 is 10. Thus, it can be seen that the output Y is dependent upon the logic states of the A and B inputs as well as the Enable input.

SN74F157ADG4 is widely used in various digital systems such as microprocessors and controllers, as a data selector or multiplexer. In a processor, for example, SN74F157ADG4 could be used to multiplex data among several data buses. SN74F157ADG4 can also be used to multiplex two inputs and provide an output based on the Enable input.

SN74F157ADG4 is also suitable for various analog applications, such as converting the voltage level of one input to two or more outputs, or as a two-input multiplexer. In addition, it can also be used as an analog multiplexer with two or more outputs, where the outputs are determined by the Enable input and the input voltage levels.

In summary, SN74F157ADG4 is a versatile multiplexer in the Logic – Signal Switches, Multiplexers, Decoders family of logic. It offers an active-LOW enable, non-inverting data selection, and low ON resistance. It is suitable for a wide range of applications where a 2-line to 1-line multiplexing function is needed. It can be used as a data selector or multiplexer in digital systems, as well as a voltage-level converter and multiplexer in analog applications.

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