CD74HC251M96 Integrated Circuits (ICs)

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CD74HC251M96 is a logic signal switch integrated circuit (IC) developed by Texas Instruments. It belongs to the family of logic signal switches, multiplexers, and decoders. The device is also known as the HC251M96 or HEF4052BM. This integrated circuit has a maximum switching frequency of 3 MHz.It has 4 inputs and a single output which requires a power supply of 2.4V – 6V. It is a 8-pin surface mount type IC which comes in a 0.5mm pitch MSOP package. The maximum output current, which is the same for all pins, is specified at 11mA. It is widely used in applications like wireless instrumentation systems, automotive, medical and dental systems, and media players.The purpose of the CD74HC251M96 is to act as a switch between two or more inputs in order to select the right signal. This is done by using several internal transistors and by creating two distinct paths for the signal, one which is pulled low when no signals is provided, and the other which is pulled high when a signal is present.The logic signal switch is usually used to select one of multiple input signals since it has the ability to act as both a multiplexer and a decoder. The multiplexer has two or more input lines, one of which is connected to an output line while the remaining lines are connected to ground. This arrangement allows more than one input to be connected to the same output line. When a control signal is applied, the multiplexer selects the appropriate input line and the output is switched accordingly. The decoder has several input lines and only one output line. It works by combining several input lines into a single output line. When the desired input is applied, the output line is activated, resulting in a high voltage or low voltage depending on the application.It works according to the principle of bus encoding. The input signals are encoded into a binary form with the help of a logic gate. This encoded binary information is connected to the output line and when the appropriate control signal is applied, the output line is activated.Due to its versatile design and robust logic levels, the CD74HC251M96 is suitable for applications that require minimal power and support a wide range of input voltage. Its small size makes it suitable for use in tight spaces and its low cost makes it an affordable choice for smaller projects.Overall, the CD74HC251M96 is an ideal choice for applications that require the ability to switch multiple signals. It is a robust, efficient and cost effective choice for a variety of logic applications.

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