74HC240N,652

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Logic - Buffers, Drivers, Receivers, Transceivers is a composite device composed of three or four separate or composite devices, or a single device that is a combination of multiple logical devices. The 74HC240N and 652 devices both fall within this category and have specific application fields and working principles.

The 74HC240N is a non-inverting, logic based device suitable for use in a variety of logic applications such as counters, logic gates and bus drivers. This device contains three separate inverting buffers and uses the three-state control signal to choose either the inverting or non-inverting buffer. Additionally, the 74HC240N also serves as a latching low switching voltage.

The 652 is an 8-bit, 3-state buffer and can also be used in logic applications. Specifically, the 652 is suitable for applications such as 8085 I/O expansion. This device is different from the 74HC240N as it uses multiplexers to control the state of the outputs.

The working principle of the 74HC240N and 652 can be broken down into three main steps. First, the logic level is applied to the input which is then amplified by the device and passed to the output. Secondly, the output stage of the device is set to either the working level (low for the 74HC240N, high for the 652) or the high impedance level. Finally, the device output is then influenced by the three-state control, thereby fulfilling the desired logic function.

In conclusion, the 74HC240N and 652 devices are both valuable components in the Logic - Buffers, Drivers, Receivers, Transceivers category. They both serve their role in logic applications and complete their working principles by alternating the logic level of the inputs and setting the output state. In addition, both provide a low switching voltage and driving current suitable for most applications.

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