72421L15JI8

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FIFOs (First In, First Out) Memory, or simply FIFO memory, is a type of logic memory used to store data in a linear, first-in-first-out fashion. It allows data to be read or written quickly, while maintaining data integrity and order. FIFO memory is particularly useful when transferring data between two or more processes, as it helps ensure that data is delivered in the same order that it was placed in the FIFO, which helps improve performance.

The 72421L15JI8 is a FIFO memory circuit designed for use in high-speed logic systems. It is designed to provide a simple, low-power solution for reading, writing, and addressing multiple data signals in a single clock cycle. It is an important component in digital systems that require fast, reliable data transmission and storage, such as memory-mapped devices, FPGAs, and ASICs. The 72421L15JI8 offers a wide range of features designed to make it suitable for a wide variety of applications. It has a 128-bitWords of data Width, which can be multiplexed with 16/32-bit words/lines. It also boasts a 4-stage address bus and 64KByte memory addressing capability.

The primary application of 72421L15JI8 is in logic systems that require reliable data storage and transfer. The chip can be used in systems that require priority access to data signals, such as in Priority-Encoded Analog-to-Digital Converters (ADCs). The chip is also suited for signal buffering, signal switching, as well as multi-path communication in distributed systems.

In terms of its working principle, the 72421L15JI8 works like any other FIFO memory device. Data from multiple sources can be queued in the device, with the oldest data being read out first. When multiple data sources are present, the oldest data is always given the highest priority. The device offers several options for controlling the data queue, including prioritized address selection, prefetching of data, and automatic rollover when the queue is full. Additionally, the device supports a “push-out” mode, in which new data is always written to the end of the queue. This helps to ensure the FIFO doesn’t become full while data from the front of the queue is being processed.

The 72421L15JI8 is a versatile FIFO memory device well-suited for fast, reliable data transmission and storage in logic systems. With its wide range of features, it can be tailored to suit a wide variety of applications. Its ability to prioritize data and its “push-out” mode make it an ideal solution for systems that require data to be delivered quickly and reliably.

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