74AHC257PW,112

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The 74AHC257PW,112 is a popular device among Logic-Signal Switches, Multiplexers, and Decoders. It is a high-performance non-inverting multiplexer/demultiplexer, which is ideal for use in logic-intensive systems. The device is manufactured by multiple vendors and is easily available at a reasonable price.

The 74AHC257PW,112 consists of two data selectors/multiplexers which multiplex 2-bit, 4-bit and 8-bit words. As it is a non-inverting device, the outputs remain active if the selected inputs are inactive. The device also has an output enable control line, so it is possible to disable the outputs completely. The device has two active-low chip enable inputs, i.e. E1 and E2. When both chip enable inputs are active, the device is disabled.

The 74AHC257PW,112 has two address inputs, i.e. A0,A1, and an output control input, i.e. E, which determine which of the 2-bit or 4-bit or 8-bit words is switched. When the output control input E is inactive, the selected output is the same as the input. When the output control input is active, the selected output is inverted compared to the input.

The 74AHC257PW,112 can be used in a variety of application areas. It can be used to multiplex buses in CPUs, to multiplex address and data buses in microprocessor-based systems and to multiplex data and control buses in many applications. It is also ideal for use in multiplexing analog and digital signals. In addition, it can be used in combinatorial and sequential circuits. It can be used to build data selectors and multiplexer/de-multiplexers to control multiple components in applications such as rate selectors, interface switches and telecommunication systems.

The working principle behind the 74AHC257PW,112 is fairly simple. When the output control input E is inactive, it obtains the original data from the selected inputs. When the output control input is active, it inverts the selected data. The device is enabled when both the chip enable inputs E1 and E2 are active. When both the chip enable inputs are inactive, the device is disabled.

The 74AHC257PW,112 is a very useful device for multiplexing 2-bit, 4-bit and 8-bit words. It can be used in various application areas such as CPUs, microprocessor-based systems, telecommunication systems and analog and digital signal multiplexers. The device is simple to use, cost effective and can be found in several vendor\'s catalogues.

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