71256SA20YGI

Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Volatile
Memory Format:	SRAM
Technology:	SRAM - Asynchronous
Memory Size:	256Kb (32K x 8)
Write Cycle Time - Word, Page:	20ns
Access Time:	20ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	28-BSOJ (0.300", 7.62mm Width)
Supplier Device Package:	28-SOJ
Base Part Number:	IDT71256

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Introduction

Memory is one of the vital components of any computing system. The memory stores the data temporarily during its use and is used to hold the instructions and data for the processor. The 71256SA20YGI is a type of memory which is used in some computing systems. In this article, we will discuss the application field and working principle of the 71256SA20YGI memory.

Application Field

The 71256SA20YGI memory is mainly used in embedded systems, gaming consoles, servers and personal computers. Its capacity ranges from 64 MB up to 1 GB and is mainly used for the storage of data and programs. It is also used in some digital cameras, media players and smartphones.

Working Principle

The 71256SA20YGI memory works on a dynamic random access memory (DRAM) principle. This type of memory is volatile, meaning, it needs continuous power in order to store data. Each data byte is stored in a memory cell, which consists of a capacitor and a transistor. The capacitor holds the charge to store the data, while the transistor acts as a switch to control data flow. The DRAM refreshes the memory cell periodically and stores the data. When a computer requires data from the memory, it sends an address signal to the memory. The address signal is used to locate the data and then the data is read from the memory cell. The data is sent to the processor and the processor uses it for processing. The 71256SA20YGI memory can also be used for writing data. The data is buffered and is eventually written to the memory when the write operation is complete. Writing to memory requires less power than reading, since there is no need to refresh the memory cell.

Conclusion

In conclusion, the 71256SA20YGI memory is widely used in embedded systems, gaming consoles, servers and personal computers. It works on a dynamic random access memory (DRAM) principle, in which each data byte is stored in a memory cell. The data is read from the memory cell when the processor sends an address signal, and is written to the memory when the write operation is complete.

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