7201LA20P

7201LA20P Application Field and Working Principle

The 7201LA20P family of FIFO (First-In-First-Out) memory is a highly integrated solution for memory buffering. The FIFO family offers a balanced solution of 0.9-V I/Os, an innovative static architecture, and an optional digital debugging port to enable maximum performance.

Application Field

The FIFO\'s architecture is designed to integrate seamlessly into mobile devices and consumer electronic applications. It can be used in digital signal processing (DSP), audio, video, timing synchronization, and digital imaging applications. The flexibility of the family allows designers to select the right device for the project at hand with both asynchronous and synchronous options. Since the FIFO is a static device, it operates in standby mode with a lowly energy consumption. This allows the FIFO to be suitable for low-power applications, such as battery-powered portable devices.

Working Principle

The 7201LA20P FIFO works in a first-in-first-out (FIFO) manner. When data is written to the memory, the data is also placed in FIFO buffer. As data is written into the FIFO, the write pointer is incremented. Similarly, data is read from the FIFO buffer, and the read pointer is incremented. The FIFO has a flag that indicates when the FIFO is empty or full. There is also an additional flag that indicates the status of the FIFO\'s address. This flag lets the controller know when the FIFO is full or empty in order to prevent data overflow or underflow.

The 7201LA20P FIFO family also offers two refresh modes. The static refresh mode only refreshes data that is written and read from the FIFO. The dynamic refresh mode refreshes all addresses in the FIFO and is triggered by the FIFO\'s flag signals. In this mode, the refresh cycles in a round robin process until the FIFO is full or empty. This refreshing technique improves the stability and reliability of the FIFO.

Conclusion

The 7201LA20P FIFO family from Logic is a highly integrated, low-power solution for memory buffering. It is suitable for a wide range of applications such as digital signal processing, audio, video, timing synchronization, and digital imaging. Also, the family of FIFOs offers an innovative static design architecture and an optional digital debugging port for maximum performance.