72V225L15TFI

72V225L15TFI is a signal re-timing device, combining a dual-ported FIFO and a bus arbiter into one package. It is mainly applied in signal re-timing field and could be used to simplify complex signal distribution applications. This article will focus on its application field and working principle.

In terms of its application field, the 72V225L15TFI has multiple uses. Common applications include simulation and emulation memory, test equipment memory, communication systems, such as Ethernet and Fibre Channel, and data storage systems. It also could be used in a wide range of automated test equipment. Basically, any system that requires efficient data transfer can call upon the 72V225L15TFI to accomplish the task.

Regarding the working principle of 72V225L15TFI, it is essential to know the concept of FIFO. FIFO stands for “First In – First Out”, meaning that the data written first will be the first to be read. A FIFO memory operates as a buffer or a latch that stores data until it can be transferred in another direction or module. A FIFO can be used as a single access point for all reads and writes, eliminating the need for complex multi-port RAM.

72V225L15TFI implements a FIFO mechanism with a dual-ported RAM. It has two read/write ports created with both read and write address counters. Both read and write access could be achieved in the same clock cycle using two sets of pointers. When the write address of 72V225L15TFI is incremented, data will be written in the RAM. When the read address of 72V225L15TFI is incremented, data located at pre-designated location will be read out.

Moreover, 72V225L15TFI was designed with internal bus arbitration as well. An internal timer controls multiple external circuits. This ability eliminates the need for external logic and programming and makes connection with external components simple.

To sum up, the 72V225L15TFI is a very useful device with multiple application fields. The dual-ported RAM along with the internal bus arbitration make it a perfect software-friendly solution requiring only few external support components. It provides a simple, cost-effective and reliable data flow management and distribution.