72261LA10TF8

Bus Directional:	Uni-Directional
Base Part Number:	72261
Supplier Device Package:	64-TQFP (10x10)
Package / Case:	64-LQFP
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
FWFT Support:	Yes
Retransmit Capability:	Yes
Programmable Flags Support:	Yes
Expansion Type:	Depth, Width
Series:	7200
Current - Supply (Max):	75mA
Voltage - Supply:	4.5V ~ 5.5V
Access Time:	8ns
Data Rate:	100MHz
Function:	Synchronous
Memory Size:	144K (16K x 9)
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to 72261LA10TF8

The 72261LA10TF8 is a FIFO (First In First Out) type logic memory which is made and distributed by IC suppliers Toshiba. It has a capacity of up to 8 bits and is able to store multiple values depending on its external environment. This FIFO provides a variety of features, including background memory loading and I/O locking, as well as advanced error detection.

Application Field of the 72261LA10TF8

The 72261LA10TF8 is widely used in the industries involving a great variety of data transfer, like data buses, communication networks, computer peripherals and other electrical equipment. In particular, it is widely implemented in low-speed, low-power systems. The 72261LA10TF8 memory is designed to provide buffering capability, allowing data to flow into the FIFO at a faster rate than it exits and preventing data overruns. It is perfect for applications where information flow cannot be controlled, such as touchscreens and serial ports, and for larger, more complex systems involving multiple data buses.

Working Principle of the 72261LA10TF8

To understand the working principle of the 72261LA10TF8, we must first look at its general architecture. The FIFO memory consists of a Writable Control Store (WCS) and a Readable Store Array (RSA), both of which are connected via a data bus. The WCS is responsible for writing data from the external interface into the FIFO while the RSA stores the data bytes in an internal addressable buffer. The WCS also issues read commands to the RSA, fetching data from the FIFO to the external interface.Once the FIFO is loaded with the desired data, the data can be read by the external interface in the order it was written into the memory. When the FIFO is empty, the interface is locked, preventing any further read or write operations until new data is loaded. This behavior is also known as “I/O Lock/Unlock” feature.Additionally, the FIFO can detect when the memory is full or nearly full, preventing any further writes from occurring. This will ensure that the buffer never overflows, avoiding any data loss or corruptions. This behavior is also known as the “Background Memory Loading” feature.

Conclusion

The 72261LA10TF8 is an advanced FIFO type logic memory used in many data transfer and communication applications. It has a capacity of up to 8 bits and provides advanced features such as background memory loading and I/O locking. It is designed to provide buffering capability, allowing data to flow into the FIFO at a faster rate than it exits and preventing data overruns. Understanding the application field and working principle of the 72261LA10TF8 is essential for engineers and technicians working with this type of memory.

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