HEF4894BP,112

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Logic - Shift Registers

HEF4894BP,112 application field and working principle are important to consider when dealing with shift registers. Shift registers are digital logic devices used for shifting data and other digital signals, in either parallel or serial form, in and out of storage locations. Depending on the type of register, data can be stored and retrieved in either a parallel or serial form. In either case, the register is essentially a shifter storage unit comprising several stages, which can be connected in a fixed or variable number of stages.

HEF4894BP,112 is a four-bit Serial/Parallel-In/Parallel-Out Shift Register which is manufactured by NXP Semiconductors. The device consists of a four-bit shift register with serial and parallel inputs and parallel outputs. It is widely used in asynchronous data communications, logic circuits and general bit manipulation applications. The device has three inputs: Clock(CP), Data In(D) and Store(ST). The device also has four parallel outputs, which are the four individual bits of the register.

The working principle of the HEF4894BP,112 is quite simple. Clock pulses are used to shift data into and out of the register. When the Store input is set high, the data present at the Data In input is stored in the first stage. Whenever a Clock pulse is received, the data from the first stage is shifted out of the register sequentially to the subsequent stages. Similarly, data applied to the Data In input is moved from stage to stage until it is present at the last stage. This behavior is known as “shift left”, since the data moves from left to right in the register. The output present at the fourth stage is latched in the register and is usually taken at the Parallel Out pins.

Applications of HEF4894BP,112 are generally related to its ability to store data in a serial form and retrieve it in parallel. The device is commonly used in the communication of an asynchronous serial data stream, such as a UART, SPI or I2C, to a parallel interface. In this application, data can be easily serialized into the register and then read out in parallel at the last stage. The device can also be used in applications such as Binary-to-BCD conversion, waveform generation and waveform storage.

In conclusion, HEF4894BP,112 can be classified under the category of Shift Registers. Specifically, it belongs to the category of logic shift registers, which are devices that are used to move data in and out of storage locations. The working principle of the device is quite straightforward and its applications are used in a variety of fields.

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