723631L20PF8

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723631L20PF8 is a FIFO (First-In-First-Out) memory device that is designed for high speed and low power applications. It uses a parallel 16/24-bit word wide data path and multiplexed address/control bus. The device is organized as 8K x 16 bytes of FIFO memory with a page size of 8K x 16 bytes, and the entire memory can be accessed in a single cycle. The device is optimized for cost, power, and performance and can be used in a variety of applications including high speed network and storage applications.

When data is read from the FIFO memory, the data is shifted out from the output pins (Q) in the order in which it was stored in the memory. The data is written into the FIFO memory in sequentially increasing memory addresses, with the oldest data being written first. The FIFO memory is accessed via an address/control bus, with an address strobe (AS) and write enable (WE) signals used to indicate whether the data is being read or written. Data is written into or read from the FIFO memory using the input/output bus (D). When the FIFO memory is full, the WE signal will be asserted and no more data will be written in until the FIFO memory has been emptied.

The timing of the AS and WE signals is controlled by the clock (DnS) signal that is used to indicate when data is present on the input/output bus (D) for writing or when data is present at the output pins (Q) for reading. For example, in a simple read/write cycle, the clock signal goes low, indicating that data is present on the input/output bus (D) and the write enable signal (WE) is asserted. The data is written into the FIFO memory, and then the address strobe (AS) signal is asserted. The data is then read from the FIFO memory and shifted out of the output pins (Q).

The device also includes support for flag bits that indicate the status of the FIFO memory: full (F), empty (E) and overflow (OV). The FIFO memory is considered to be full when the write address pointer exceeds the read address pointer, and the full flag bit is set. The FIFO memory is considered to be empty when the read address pointer exceeds the write address pointer, and the empty flag bit is set. The overflow flag bit is set when data is written into the FIFO memory even though it is already full. This allows the FIFO to indicate that it is full even if the write address pointer does not exceed the read address pointer.

The 723631L20PF8 is ideal for a variety of applications including high-speed storage and communication applications, such as Ethernet and Fibre Channel applications. It is particularly useful in applications where power is critical, such as mobile and embedded systems. It can be used to build high-speed and low-power systems in a wide range of applications, including network traffic analysis and storage systems.

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