74HC138PW,112

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The 74HC138PW,112 is an 8-bit 3-to-8 decoder with an active­high enable input. It is a part of the TTL family, and is one of the most popular logic elements for digital electronic applications in modern designs. This logic element falls into the category of logic-signal switches, multiplexers, and decoders.

A 3-to-8 decoder typically has three data inputs and eight active­high outputs. This type of decoder can be used to convert three digital inputs into an 8­bit (8 levels) output code. The 74HC138PW,112 is a three­bit decoder that has one enable input. The enable input is active-high and when the enable input is high all the output enable signals will be enabled. This decoder also has an active­low output enable signal that can be used to actively enable or disable the outputs.

The 74HC138PW,112 decoder can be used in many applications such as shift registers, demultiplexers, address decoders, memory drivers, and logic puzzles. It is often used in computer systems and embedded systems to provide an addressable output of digital logic levels that can be varied with different address inputs. The 74HC138PW,112 is also used in digital applications that require logic states to be decoded from three or more digital inputs.

The 74HC138PW,112 decoder consists of two transistors and a two­input signal­switching inverter. The transistors operate in complementary pairs so that the signal at one of the inputs is inverted when the signal at the other input is active. The switching action of the transistors is used to selectively activate or deactivate each of the outputs. Depending on the input signal, the output will be either high or low.

The signal­switching inverter is used to control whether the output will be enabled or disabled. When the input signal is low, the output is enabled and when the input signal is high, the output is disabled. The enable input is active when the input signal is high and the output enable is low. The output enable pin is used to disable the outputs when the input signal is low and the enable input is active. This provides a way for logic designers to easily control which of the outputs are enabled or disabled.

The 74HC138PW,112 decoder is ideal for logic level applications that require multiple digital signals to be converted into a single logic level. It is also suitable for applications such as address decoders and memory drivers. This decoder has a low power consumption and is easy to use. It is an ideal choice for digital applications that require multiple digital inputs and a single output.

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