SN74ALS857DWG4

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The SN74ALS857DWG4 is a monolithic integrated circuit containing two four-input multiplexers and two four-input decoders. Its application field lies mainly in digital signal processing and logic control.

The four multiplexers allow eight data inputs to select one of four sources. The multiplexers have logically ORed enable selects, which can be used to enable or disable all eight data inputs simultaneously. This multiplexer circuit allows data interchange between circuits operating at different logic levels.

The four decoders are capable of storing sixteen binary words. Each decoder contains an active-low enable input so that any combination of the sixteen words stored can be enabled or disabled. The data stored in the decoders can be used as address buses in digital systems to select a particular location.

The SN74ALS857D is a TTL compatible, low power device, so it can be used in digital devices requiring low power consumption. It offers an asynchronous chip select input, which can be used to enable or disable all sixteen data bits of the multiplexers as well as the respective outputs of the decoders.

The SN74ALS857D works on a two step process. The first step is the multiplexing step, which renders the functionality of the multiplexers. Once the multiplexing is done, the data is put through the decoders and the resulting output is the required output. The decoding process is then done by comparing the inputted data with the data in the multiplexers to determine the required address.

The SN74ALS857D can be used in many places such as in digital to analog conversion, logic switching, memory address decoding and memory control. It is a versatile device and can also be used in many other applications.

Overall, the SN74ALS857D is a great device for Logic - Signal Switches, Multiplexers, Decoders. It has low power consumption and fast switching speed, making it the ideal device for many digital applications.

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