SN74ACT7882-30PN

Logic - FIFOs Memory

The SN74ACT7882-30PN is a First-In-First-Out (FIFO) memory device from the Texas Instruments\' Logic family of products. It is a 16-bit memory device that can store up to 256 words of 16-bits each. It is used to transfer data between high speed and low speed buses. The device has a power down mode, a programmable read pointer, and a programmable write pointer.

Application Field

The main application of the SN74ACT7882-30PN is to transfer data between two buses that operate at different speeds. This is often seen in multimedia applications such as video streaming, where data transfer rates between components need to be synchronized. Other applications where the FIFO is used are digital signal processing, data communications systems, and digital audio.

Working Principle

The working principle of the SN74ACT7882-30PN is based on a pipelining technology. Data is stored in the FIFO on a first-in-first-out basis. Data that is written to the FIFO is stored in a FIFO memory buffer. The read and write pointers indicate which data is currently being accessed. The read pointer is used to read data from the FIFO, and the write pointer is used to write data to the FIFO.

When a write operation is performed, data is written to the FIFO memory buffer, and the write pointer is incremented. When a read operation is performed, data is read from the FIFO memory buffer, and the read pointer is incremented. This ensures that data is read and written in the correct order. The FIFO has the ability to hold up to 256 words of data, which can be programmed with the size of the FIFO memory buffer.

Conclusion

The SN74ACT7882-30PN is a FIFO memory device that is used to transfer data between buses operating at different speeds. It is a highly effective solution for multimedia applications and digital signal processing. The FIFO memory buffer can be programmed with up to 256 words of 16 bits each and supports a wide variety of data types. By using pipelining technology, data is read/written in the correct order, allowing for efficient data transfer.