11LC080-E/SN

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Memory: 11LC080-E/SN Application Field and Working Principle

11LC080-E/SN is a monolithic static random-access memory (SRAM) IC device. It is a high-density, 8K-bit, low standby current memory chip manufactured by Integrated Memory Systems Inc., or IMS. The 11LC080-E/SN memory IC is used in various applications, from low-density digital signal processing systems to program storage for general-purpose microcontrollers.

Application Fields

The wide applications of this memory chip are primarily attributed to its fast access and low power consumption. As a static RAM, the 11LC080-E/SN has a state that is retained without requiring any power. This makes it suitable for applications involving interactive displays and control panels. Because of its low power requirements, the 11LC080-E/SN can be used in consumer electronics and other mobile systems.

Apart from consumer electronics, the 11LC080-E/SN is used for data storage and data management across multiple applications. It is used for process control in automation systems, and for large-scale database applications. Its fast access has made it suitable for real-time applications like in medical imaging systems, and for controlling high-speed automation systems.

The 11LC080-E/SN can be used for nonvolatile storage in applications such as programmable logic controllers, where data must be retained even after power-down events. Whilst conventional SRAM can typically only store data for days, the 11LC080-E/SN can maintain data for years, making it ideal for long-term data storage.

Working Principle

The 11LC080-E/SN is based on a monolithic design, wherein all of the required logic elements are integrated into a single chip. The memory chip has a static design, which allows it to retain data without requiring any power. It is an 8K-bit device, with a 128K-bit memory addressing space and an associated data bus.

The data bus is connected to the chip’s 8K-bit memory array. This array contains 8,000 individual memory cells. Each memory cell is connected to two transistors, allowing data to be written to, and read from, the memory cell. The remainder of the chip consists of logic elements, including transceivers and latches to control data communication between the chip and the data source.

Writing data to the 11LC080-E/SN is achieved by setting an associated data access address. This address is sent to the on-board transceiver, which then sends the address to the memory array. The transceiver addresses the appropriate memory cell using a pair of differential currents. Once the memory cell is addressed, data can be written to the cell by applying a pulse of current to the chip.

Data can then be read from the memory cell. This is done by setting the same address as when writing the data. The transceiver then sends this address to the memory array, and the appropriate memory cell is addressed. The differential current pulse then turns on one of the cell’s transistors, allowing the data to be read from the memory cell.

Conclusion

The 11LC080-E/SN is a highly versatile memory IC device. Its low power consumption makes it an ideal candidate for mobile and consumer applications, whilst its 8K-bit memory addressing space makes it suitable for larger applications such as process control. As a static design, the 11LC080-E/SN has the added benefit of being able to retain data without requiring constant power, making it an ideal choice for long-term data storage. The 11LC080-E/SN is therefore a highly versatile, inexpensive and reliable solution for many data storage applications.

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