72T36125L10BB

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Logic-FIFO Memory, based on its name, implies that it is a type ofmemory that stores data in a sequential, First In First Out (FIFO)order. Such memory arrays are primarily used for buffering and edgetriggering tasks. In this article, we will explore the 72T36125L10BB LogicFamily FIFO Memory and its application field and working principles.

72T36125L10BB Overview

The 72T36125L10BB is a high speed Serial Pipeline FIFO Memorydevice. It is a member of IDT’s 36 family of FIFO memory devices, offeredin 28/40/56-pin SSOP or QFN packages. This family offers features nottypically found in FIFO devices, such as a 5-bit configurable data widthand two freely selectable depth boundaries.

72T36125 is designed for high speed data transfer between systems operating at different clock frequencies. It has an write clock (WC) andread clock (RC) that runs at different frequencies and ensures that datasimultaneously flows in and out of the FIFO device.

The WR port on 72T36125 can operate up to 250MHz and the RD portoperates up to 160MHz, allowing for a total from 613MHz to nine megachips(746Mbits/s) full duplex operation. This device also features low powerconsumption, requiring only 50mW in typical operation mode.

Application Field of 72T36125L10BB

The 72T36125L10BB has a wide range of applications. It can beused in applications such as industrial automation and consumer electronics,where transmission between data interface controllers is required. Otherapplications include Ethernet switches and routers, system and chip OChinaudio, secure host controllers, consumer peripherals and wireless adapters.

The device is also ideal for applications where there needs to be asmooth, high-speed data exchange between system components with differentoperating speeds. It is also used for applications where FIFO memory isneeded to buffer data in a networked system and perform edge triggering.

Working Principle of 72T36125L10BB

The 72T36125L10BB is based on the principle of FIFO (First-InFirst-Out) Memory. When data is written to the device, it is held insequential memory cells in the order it was written. When data is readfrom the device, it is read in the same order it was written.

The device operates through two simple clock signals – WR Clockand the RD Clock. The WR Clock is used to write data at the Write-Portinto the device and the RD Clock is used to read data at the Read-Portfrom the device.

The device has five write control signals: ‘Write clock enable’and ‘Write Request’ signals ‘write address increment’, ‘write data increment’and ‘write full flag’.

The Write Clock Enable signal enables data writing from the WritePort to the FIFO device. The Write Request signal is used to request data tobe written into the device when it is available.

The Write Address Increment signal is used to increment the writeaddress counter by one every time the Write Clock Enable signal isasserted. The Write Data Increment signal is used to increment the dataat the write port by one every time the Write Clock Enable signal isasserted.

The Write Full Flag signal is used to indicate when the writeaddress counter has reached the full boundary of the FIFO memory. The devicealso features a ‘Read Enable’ and ‘Read Data Ready’ signals, which areused to control the read operation of the device.

The ‘Read Enable’ signal is used to enable data to be read from theRead-Port. The ‘Read Data Ready’ signal is used to indicate when data isavailable at the Read-Port. The device also has four additional signalsfor dual-port operation – WR Empty Flag, RD Empty Flag, WR Word Full Flagand RD Word Full Flag.

Conclusion

The 72T36125L10BB Logic Family FIFO Memory is a high speed, lowpower memory device ideal for data transmission between system componentsrunning at different speeds. It has five write control signals to controlthe writing of data and two read control signals to control the readingof data. It is used in applications such as Ethernet switches, routers andindustrial automation devices.

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