N74F164N,602

The N74F164N and 602 are two types of shift registers that are used in a variety of applications. As logic-shift registers, they are popular for providing an interface between digital logic and an external device, such as an encoder, decoder, processor, or analog to digital converter. However, they are also used in some other applications, such as expanding the range of inputs and outputs of a logic system, or even to create logic sequences that are used to control motors or lighting systems. This article explains their application field and the working principle of these two types of shift registers.

Application Field

The N74F164N is a 8-bit synchronous serial-in, serial-out shift register. It is typically used in applications where serial data is being input from a separate device and requires parallel data output. As its serial data is clocked directly from a separate clock source, its data output is synchronized to an external device. It is commonly used in applications where a large number of outputs are needed, but a shorter number of control lines are available.

The 602 is a 16-bit, serial-in, parallel-out shift register. It is often used when data is to be transmitted serially, then converted to a parallel output. It is commonly used in applications that require a high speed transmission of data and can be used to provide parallel data outputs with a limited number of control lines. The 602 also offers a range of features that make it ideal for applications such as frequency synthesis, security systems, and motor control.

Working Principle

The N74F164N uses a serial input and clock signal to shift the data into the register. When the serial data is clocked in, it is then stored in the register. On the rising edge of the clock signal, the data is shifted out, allowing the output to be synchronized to the external device. The data stored in the register is also continuously clocked out, allowing for data to be shifted out in parallel, without the need for additional control lines. The register can also store data when the clock is held low or disabled, allowing for the synchronous serial output to remain in a fixed state.

The 602 uses a different type of shift register, called a parallel-load. Instead of using a single data line to shift data into the register, the 602 uses several data lines that are switched simultaneously. This allows for data to be input in parallel, thus increasing its data transfer rate. The data is then clocked out to the output, in a parallel fashion, by the clock signal. The 602 also features several control features that allow for data to be loaded, reset, and disabled at any time.

The N74F164N and the 602 are two popular logic-shift registers that are used in a range of applications. They have their own unique features, making them suitable for different applications. By understanding their application field and working principles, engineers can more effectively use them to design their own digital circuitry.