72V83L20PA

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72V83L20PA Application Field and Working Principle

FIFOs Memory (first in first out) is a memory structure characterized by storing data elements in a FIFO structure or buffer. This is the most basic of all memory structures, used for synchronizing data between different operating frequencies. It is N bits wide, and an arbitrary number of bytes (n²) deep. The value of n is used to determine the depth of the memory. The most commonly used depth variations are 8, 16 and 32 bits.

The 72V83L20PA FIFOs memory is a synchronous FIFO from Toshiba\'s 72V series. It has a data width of 8 bits, and an unlimited depth (up to 256KB maximum), compared to the other FIFOs of the same series. It is designed for asyn-chronous transfer between two or more systems. Its high speed operation is accomplished by 3-2-1-0 waveform control, which generates a waveform between 0 and 3.

Features

The 72V83L20PA has been designed for embedded system applications where low power consumption, high data rates, fast start-up times and low latency are important. It offers a variety of features and benefits, including:

• Low power consumption –The 72V83L20PA is capable of emitting a maximum of 0.25mW, and can be used in most applications without a fan or cooling system
• High data rates – up to 40Mb/s
• Flexible Start-up Times – The 72V83L20PA can be configured to start-up in any of 4 different modes: low power (1 usec.), low latency (4 usec.), high data rate (8 usec.) or high latency (16 usec.)
• Low Latency – The 72V83L20PA has a latency of 2 cycles
• 3-2-1-0 Waveform Control – The 72V83L20PA utilizes an advanced waveform control system to achieve a maximum operating speed of 40Mb/s in any of the four start-up mode configurations.

Application Fields

The most common applications of FIFOs Memory are in the data transfer between two or more systems. Data synchronization between two or more systems can be a complex problem, and FIFOs are the main solution for this issue. The 72V83L20PA FIFOs Memory is particularly suitable for high-speed data transfer in embedded applications where power consumption and latency must remain at a very low level. The FIFO can be used for transmitting data over a single channel, as well as for breaking down data into smaller chunks for transmission over multiple channels. It is also widely used for buffering data in storage management applications.

Working Principle

The 72V83L20PA FIFOs Memory implements a basic principle of FIFOs: when data is written into the FIFO, it is stored until it is taken out and cleared. Data is written into the FIFO in a first in first out order; that is, the first data written into the FIFO will be the first data to be read out. This is done via the 3-2-1-0 waveform control system, which uses a four-state waveform generated between 0 and 3 to synchronize the read and write operations. The FIFO can also be operated in different modes: normal, empty or full. In normal mode, data is written into and read from the FIFO in a “first in, first out” fashion. In empty mode, the FIFO flags an interrupt when there is no more data left in the FIFO. In full mode, the FIFO flags an interrupt when the FIFO is full and data can no longer be written into it.

The 72V83L20PA FIFOs Memory is a reliable and robust solution for ultra-high-speed data transfer and buffering applications. Its high data rates and low power consumption make it ideal for use in embedded systems where energy efficiency is paramount. Additionally, its flexible start-up times and low latency make it an attractive solution for data synchronization between systems.

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