TC74VHC165FTELM

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Logic-Shift Registers, as we all know, consist of several parallel-connected cells. Each of these cells has a fixed storage capacity, and it is combined with a serial input and output. The most important characteristics of these registers are that they are able to independently store data in the cells and shift them through a serial interface. Nowadays, they find great application fields in digital signal processing and signal-to-digital data conversion.

TC74VHC165FTELM is one of the families of Logic-Shift Registers. It is a standard low voltage CMOS logic device which integrates 8-bit shift register with asynchronous reset and addressing capabilities. This device includes a separate asynchronous reset input, a serial data input and a serial data output pin.

As for the application field of TC74VHC165FTELM, it can be used in many applications including digital display drivers, data selectors/ multiplexers for microprocessors and digital signal processing circuits. Moreover, it can also be served as input devices for sound/video control, address decoder/data selector for shift register/ selector intensive control, address or data buffer for microprocessing and data isolation/database search devices.

The work principle TC74VHC165FTELM is not difficult to understand. When the clock is in a high status, the serial data is loaded into the register and the contents of the register are shifted right by one bit. The serial data output is a complement of the rightmost cell. After each shift operation, the asynchronous reset pin r determines if the contents of the register can be reset to zero.

Additionally, this device also has an auxiliary serial output which allows to read out the data stored in any cell of the register. To do this, the appropriate control signals must be sent through address inputs A0 and A1 in order to select the desired cell. Furthermore, it operates with a wide range of current and voltage levels, with a voltage source ranging from 2.0V to 6.0V and with a maximum current of 24mA. All these contribute to making this device the perfect choice for applications where low power consumption is prioritized.

In summary, TC74VHC165FTELM is one of the most popular devices from the family of Logic-Shift Registers. Its capability of asynchronous reset, various application fields and wide operating voltage and current levels make it ideal for all kinds of digital signal, sound/video and address processing applications which prioritize low power consumption.

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