72275L15PFI

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FIFOs (First-In-First-Out) memory devices, such as the 72275L15PFI, are fundamental elements used in digital logic systems. In such applications, FIFOs have the capability of daisy-chaining multiple memory devices to provide the user with increased memory capacity and the ability to access data more quickly. This article focuses on the 72275L15PFI application field and working principle.

Application Field

The 72275L15PFI device was designed as an alternative to standard SRAMs and SDRAMs for applications requiring high-volume data streams and large memory network configurations. Due to the device\'s FIFO nature and architecture, the 72275L15PFI is the ideal memory device for applications where considerable amounts of data stream through for rapid processing, such as medical imaging, imaging systems, and industrial automation.

The 72275L15PFI consists of 32Kx36 memory cells, organized into 32Kx19 word FIFO, allowing high-volume data streams to be managed efficiently. The device is fabricated using 0.18-micron CMOS technology, resulting in a high performance and low-power consumption. Furthermore, the device can be operated in a low-standby power consumption mode, allowing it to be used in numerous embedded system applications.

Working Principle

The 72275L15PFI FIFO consists of a write buffer, a read buffer, and address counters to track data flow in and out of the device. The write buffer is used to record incoming data streams into the memory cells, and the read buffer for receiving data stored in the memory cells for processing. The address counters manage the data flow, keeping record of the current addresses for both the read and write operations.

Data access is enabled through synchronous Rapid I/O input/output signals. An active-high write enable (WE) signal is used to write data from the device\'s data bus into the write buffer. After valid data is written into the write buffer, the write address is incremented by one by an internal write address counter which holds the addresses of the write and read operations.

The read buffer contains the address of the memory cell which is currently being read from. When a valid read operation is initiated, the read address is incremented by one and the data contained in the memory cell is read and sent to the output data bus. This operation continues until the last valid address is reached and the FIFO reaches empty condition.

The 72275L15PFI FIFO has the advantage of recording information through this process faster than SRAM and SDRAM devices, allowing it to be used in applications requiring high-speed access and large capacity.

In summary, the 72275L15PFI memory device is an ideal choice for applications requiring large amounts of data to be processed quickly, and its unique design makes it suitable for embedded systems as well. This device is an incredibly useful tool in the fields of medical imaging, imaging systems, industrial automation, and other demanding applications.

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