MC10H172PG

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Logic - Signal Switches, Multiplexers, Decoders are a class of integrated circuits important for digital signal routing and flow control. The MC10H172PG is an example of this type of IC, and this paper aims to describe its application field and working principle.

The MC10H172PG is a dual 4-input multiplexer that is widely used in systems that require reliable data selection. It is built with complementary MOS (CMOS) Technology, which makes it particularly suited for low power applications, as it ensures lower stand-by power consumption than most other logic ICs. It is also qualified to operate at temperatures ranging from -40C to +85C, allowing it to be used in a wide range of environmental conditions.

The MC10H172PG is ideally used for the selection and decode of digital data input signals. It takes four data inputs, A, B, C and D, an address input and a ‘CLR’ (Clear) input. The address input is used to select which of the four data inputs will be routed to the output. What makes the MC10H172PG so useful is that not only is the output data selectable, but the outputs can also be cleared (set to low logic level) when the ‘CLR’ input is at a high logic level.

To better understand how the MC10H172PG works, it is helpful to take a look inside its circuitry. The IC contains two 4-input multiplexers that operate exactly the same way. Both the multiplexers are constructed with four N-channel MOS transistors configured as an “OR” gate. The four data inputs and the address input are connected to the gates of the transistors and the source inputs are connected together to form the output. When a logic “1” appears on the address input, the appropriate transistor is turned on and the corresponding data input is routed to the output. The ‘CLR’ input is connected to the gates of the transistors and when it is at a high logic level, all the transistors are turned off, reducing the current draw significantly and producing a ‘reset’ effect on the output.

The MC10H172PG is an extremely useful IC, being able to select data from four inputs and exit the selected data through a single output. Furthermore, it can be used in low power applications and its wide operating temperature range allows it to be used in a variety of environmental conditions. Its application fields include digital communication networks, debugging tools, medical and industrial instrumentation, and more.

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