72V851L10PF

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The 72V851L10PF FIFO (First-In-First-Out) memory is a popular logic device typically used in a wide range of data-intensive applications that require buffering and streaming of data. The FIFO memory has a simple structure and yet allows for efficient operations by allowing the user to control the flow of data between source and destination without the need for an external buffer or micro-controller.

Application Field

FIFOs are commonly used in applications such as data bus interfaces, digital video and audio streaming, data communication systems, and digital signal processing, as well as in digital-to-analogue, analogue-to-digital, and frequency synthesizer applications. In these, data is stored in the FIFO until it is time for it to be processed, at which point the FIFO can be emptied. The device is particularly useful in high-speed data transfer applications, such as streaming video and audio, where the FIFO works to match the flow between the source and the desired output.

The 72V851L10PF FIFO is an ideal memory device for applications requiring a high amount of data throughput. It is particularly suitable for data storage or storage in a pipeline paradigm. It can be used to buffer data in a system to allow for tasks that require multiple accesses of the data, or to improve performance by reducing latency in data transfers.

Working Principle

At the heart of any FIFO memory device is a two-ported memory. This two-port memory has both read and write ports and allows simultaneous read and write access. When a byte of data is written to the FIFO, the data is stored in a memory array and the pointer is incremented to the next memory location. When a byte of data is read from the FIFO, the data is retrieved from the memory array and the pointer is then incremented to the next memory location.

In the case of the 72V851L10PF, the FIFO has an 8-bit wide data path, allowing for up to 256 bytes of data to be stored. To ensure that the memory does not exceed its capacity, the FIFO has a full or empty flag. If a write operation is attempted when the full flag is set, the write operation is aborted. Conversely, if a read operation is attempted when the empty flag is set, the read operation is also aborted.

The FIFO also has an optional read and write enable inputs, allowing the user to control when data can be read and written. This feature can be used to protect the data in the FIFO when the system is in certain states, such as during power-up or reset. The user can also use the read and write enable inputs to indicate the system’s ability to accept data or to indicate when data is not ready to be read.

The FIFO also has an optional reset input, allowing the FIFO to be reset to its empty state in a single step. This is useful when the device is used in systems that require the FIFO to be initialized before use. Another useful feature of the FIFO is the optional interrupt output, which can be used to indicate that the FIFO is empty or full.

In summary, the 72V851L10PF FIFO is an ideal device for applications that require buffering and streaming of data. The FIFO’s simple structure and efficient operations enable data to be reliably stored in a memory array and the data can be flow-controlled by the user. The optional read and write enable inputs and reset input enable the user to protect data and reset the FIFO in a single step. The interrupt output allows the user to quickly detect and respond to FIFO events.

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