Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Memory Type:	Volatile
Memory Format:	SRAM
Technology:	SRAM - Dual Port, Asynchronous
Memory Size:	16Kb (2K x 8)
Write Cycle Time - Word, Page:	55ns
Access Time:	55ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	52-LCC (J-Lead)
Supplier Device Package:	52-PLCC (19.13x19.13)
Base Part Number:	IDT71421

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Memory

What is 71421SA55JI8?

71421SA55JI8 is a type of memory belonging to Dynamic RAM, or DRAM, technology. It is specifically a 128MB FPM (Fast Page Mode) DRAM memory chip, commonly found in desktop PCs, portable devices and embedded computers.

What are the advantages of using 71421SA55JI8?

71421SA55JI8 provides many advantages. It is an exceptionally fast type of DRAM, providing speeds up to 167MHz when used in the correct hardware environment. Additionally, 71421SA55JI8 chips feature SPD (Serial Presence Detect), which provides the user with complete control over the memory settings. This is useful for system administrators who want to control certain parameters such as CAS latency or RAS to CAS.

Application Field and Working Principle

71421SA55JI8 DRAMs are commonly used in desktop PCs and notebooks due to their improved speed and reliability. They are also found in many embedded systems, especially those with large memory requirements.In terms of working principle, 71421SA55JI8 DRAMs is composed of a number of DRAM cells arranged in an array. A cell consists of three parts: address lines, data lines, and control lines. The address lines are used to define where data should be stored or fetched from, while the data lines are used to carry the actual data. The control lines govern how data is stored and retrieved. When the computer needs to read or write data, it sends an address and the appropriate control signals to the memory chip. This activates a row of memory cells, which is then accessed through the data lines. To access another row of cells, the chip must be recharged, which is done by cycling through the rest of the rows and recharging them.

Performace

With its improved speed and increased data rate, 71421SA55JI8 memory is a great choice for applications that require fast response times. This makes the memory useful for both gaming and production-level applications. Additionally, the ability to change certain parameters with the SPD function offers a great degree of flexibility for system administrators.

Conclusion

71421SA55JI8 is a fast and reliable memory chip. It is often used in PCs, embedded systems, and other devices that require fast response times and a high degree of control over the memory settings. Through its improved speed, increased data rate, and SPD support, 71421SA55JI8 makes for a great choice for performance-critical applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description