SN74V293PZAEP

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The SN74V293PZAEP is a device classified as Logic - FIFOs Memory. FIFO stands for “First in, first out”, which essentially means data is stored in a first come, first serve sequence. This device is a heavily used Industrial and Automotive application, where information needs to be remembered for short amounts of time due to the wide variety of applications it can handle.

The SN74V293PZAEP is comprised of a 4-word × 8-bit register and a 4-word × 8-bit buffer. These components are organized as 16-bit words that are managed by a Read and Write pointer. Its operation is effectively like a sliding window buffer where data is written in and shifted out.

The SN74V293PZAEP can write data at a much faster rate than it can be read and with its automatic buffer insertion and tension sensing, it provides an advantage over the average FIFO. It can store up to eight words that can be retrieved in the same order it was stored and for most applications it makes little difference if a word is skipped or replaced.

The device works by a Read pointer which reads out the first byte or word from the FIFO, which is then shifted out and replaced with the next byte or word. This process continues until there is a break in the stream or until the FIFO is empty. The write pointer is similar, where only when the FIFO is empty will the next byte or word be written into the FIFO.

The Read pointer is necessary in order to read the data stored in the FIFO without error, as well as when transferring data to and from the FIFO. It can identify the present location of the byte or word within the FIFO, as well as pointing to the next byte or word location, allowing for smooth data flow in both directions of the FIFO.

The write pointer is responsible for writing new data into the specified location of the FIFO, and can recognize when the FIFO is full or empty. It will either overwrite existing data in the FIFO, or if it is empty will write data into the FIFO from an external source.

The SN74V293PZAEP allows for both parallel and serial data to be stored in the FIFO. Data is written into the FIFO using either a parallel write port, or a serial write port. The parallel write port receives 8-bit words and requires four Clock cycles to be written to the register. The serial write port allows for data to be written in oneClock cycle but it has a reduced data width of 4-bits.

This device was designed to prevent the occurrence of “tearing” or “missing bytes” from appearing in the FIFO, a phenomenon that explains why bytes can be lost or skipped during the data transfer process. The SN74V293PZAEP eliminates the tearing effect by having a dual-port D-type register, one for input and the other for output. This dual port capability guarantees that every byte is read out, even if the incoming ones are skipping over it.

The device is mainly used for buffering data that has been input from a slow peripheral receptor. It is used in hostile environments such as in Automotive applications and in the synchronization of programmable logic controllers.

The SN74V293PZAEP is part of a portfolio of devices that are used in FIFOs Memory and Logic applications. It meets stringent design requirements, proving to be a reliable and efficient solution for industrial and automotive applications alike. With its wide applicability, reliable functionality and robust design, the SN74V293PZAEP is an optimal choice for Logic - FIFOs Memory application.

The specific data is subject to PDF, and the above content is for reference