CY7C4291V-15JXC

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Logic - FIFOs Memory

CY7C4291V-15JXC is a logic part of FIFOs Memory with First In First Out priority (FIFO) that can support a wide range of data interface applications. The CY7C4291V-15JXC provides a Buff XDIRX8000000U96P registers with FIFO memory which is ideal for a variety of data interface applications. The FIFO has two types of read and write that can be used independently or simultaneously.

Features

The feature set of the CY7C4291V-15JXC include a FIFO memory array with a total of 8K bytes; 8-bit addressable for both read and write; 5MHz synchronous burst read operation; 5MHz synchronous burst write operation; 5MHz synchronous break operation; 1-bit precharge or 16-bit precharge and multiple operation modes.

Applications

The CY7C4291V-15JXC is perfect for a variety of low power, high performance data interface applications. Examples include data acquisition applications such as real-time automotive electronics, point-of-sale systems, CATV/DSL modems, industrial process control systems, medical equipment, and multimedia. Additionally, the part is suitable for the development of various communication protocols, and high-performance FIFO communications.

Working Principles

The CY7C4291V-15JXC is designed to meet high-performance operational requirements with a low power design. The principle of data flow begins with a “read/write” command. When a read/write command is issued, the data is read from the FIFO memory array via the address pointer and latched into the communication interface module. The command signal is then processed by the asynchronous logic to determine the direction of the data flow.

The read operation is simple. Data is read from the FIFO location addressed by the address pointer. The address pointer is incremented after a successful read. Then, the data is supplied to the communication interface module through the output bus. In the write operation, data is clocked from the communication interface module and written to the FIFO memory array at the location addressed by the address pointer. The address pointer is incremented after a successful write.

The break operation is used to reset the FIFO memory array pointer. Data is written and read with the same timing and sequence as read/write operations. The address pointer is reset to the beginning of the FIFO memory array, when the break command is given. This operation is used mainly in a system reset process as well as dutring fault conditions.

Conclusion

The CY7C4291V-15JXC provides an ideal logic part of FIFOs Memory for low-power, high-performance data interface applications. Its FIFO memory array architecture is capable of providing a high-performance data flow for data acquisition and communications applications. The 5MHz synchronous burst read/write/break operation and assorted operating modes offers flexible dataflow control for applications.

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