72271LA10PFG8

Logic FIFOs or first-in-first-out memories are an important building block for many digital designs, providing a mechanism for storing digital data in sequence. The 72271LA10PFG8 is a popular FIFO memory designed for a wide range of applications. This article will explain the general application field of this type of FIFO memory, and its working principle in detail.

Application Field

The 72271LA10PFG8 is a FIFO memory specifically designed for use in a wide range of digital designs. It is a 9-bit programmable FIFO memory, capable of supporting an 8-bit data width. The FIFO is designed to handle both asynchronous and synchronous data transfers and is capable of interfacing with a variety of chipsets and protocols. Its small package size and low power consumption make it suitable for use in portable electronic devices. Additionally, the FIFO can be used in medical applications where fast data transfer is needed, as well as other demanding applications requiring reliable storage of digital data.

Working Principle

The 72271LA10PFG8 is a true first-in-first-out memory where data is written into and read out of the memory in the same order. When data is written into the memory, it is stored in a register. When data is read from the memory, it is retrieved from this register. The memory operates in “full” or “half-full” mode. When the memory is full, no data can be written into it. When the memory is half-full, the next byte can be written into the register, but no data can be read until the register is full. The 72271LA10PFG8 is equipped with buffers that can temporarily store data until the memory is ready to accept it.

An important feature of the 72271LA10PFG8 is its support for asynchronous and synchronous transfer. In asynchronous mode, data is transferred between a master and slave system via two separate control lines. In synchronous mode, the clock is used to identify when data can be transferred in each direction. The FIFO is also programmed via an internal register. This register allows the device to identify important parameters, such as the data width, memory size, and buffer size.

The 72271LA10PFG8 is capable of working in both standard and dual-ported operation. In standard operation, data can be written into and read from the memory at the same time. In dual-ported operation, the memory can be used to read from one side while the other end is writing data into the memory. This can be useful in applications where data must be simultaneously accessed from multiple sources.

To summarize, the 72271LA10PFG8 is a versatile FIFO memory designed for use in a variety of digital designs. Its compact size and low power consumption make it suitable for use in portable electronic devices. Its ability to support both asynchronous and synchronous transfers, as well as standard and dual-port operation, gives designers the flexibility needed to meet the specific requirements of the application.