CD74HC257M96

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Logic - Signal Switches, Multiplexers, Decoders are the devices used to control the flow of bits in digital circuits. CD74HC257M96 is a type of Multiplexer. It is used to select and control the flow of a digital signal among many paths. In this article, we are going to discuss the application field and working principle of CD74HC257M96.

CD74HC257M96 is a highspeed CMOS 4-to-1 multiplexer that is monolithic Silicon Gates CMOS logic IC. It consist of four independent data selectors where user can select the desired one from the given inputs. It requires a single supply voltage of 2V to 6V with the capability of over 50 million gates per second. It is compatible with 4-bit wide memory and dual supply protocol. It has a power-down feature and its input and output are overvoltage protected.

In terms of application field, CD74HC257M96 can be used in a variety of applications like memory expansions, multiplexer, demultiplexer, digital switching, timing and pulse-width modulations. It can also be used in telecommunication, instrumentation and test equipment. This device also has the advantage of being able to be used in automotive and industrial applications, due to its high performance.

In terms of its working principle, CD74HC257M96 takes four inputs and one enable signal. When the enable signal is logically high, the output will be the selected one from the four input data. The outputs are high impedance when enable is low. Its four independent 2:1 multiplexer are controlled by two inputs, i.e S0 and S1, and they will select one among two input data based on the two control signals. For example, when S0 is logic low, the Multiplexer selects data line which is connected to I0 and if S0 is logic high, the Multiplexer selects data line which is connected to I1. Moreover, the two control signals S0 and S1 can be activated simultaneously i.e both can be logic high or logic low and thereby the Multiplexer can select one data line among four input data. The output of the Multiplexer is connected to Y which can be accessed via a single-ended port or a differential port.

In conclusion, CD74HC257M96 is a versatile device with a wide range of application field and it can be used for a variety of digital signal controlling and switching applications. Its working principle and the way of multiplexing inputs makes it an ideal choice for applications where high performance and high speed are the key priorities.

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