AT45DB321D-SU-SL383

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The AT45DB321D-SU-SL383 is a serial-interface dynamic random-access memory (DRAM) based on a bulk CMOS technology that uses current industry-standard serial interface protocols. It can be used as a primary stored memory for microprocessors and other applications that require large memory capacities. In this article, we will be exploring the application field and working principle of the AT45DB321D-SU-SL383 memory chip.

Application Field

The AT45DB321D-SU-SL383 memory chip is a non-volatile memory device with a 4 Mbit capacity. This device can be used in a wide range of applications demanding high reliability, data retention, and low power operation. These applications include but are not limited to remote data loggers, fault-tolerant systems, industrial automation, medical monitors, smart meters, and home automation.

Because this device offers fast write and read speeds as low as 20 ns, it is suitable for many high-performance applications with strict timing requirements. Additionally, its integration within the same system with SRAM and Flash memory allows for very flexible design solutions. It is also attractive for usage in power-saving designs that require very low-power operations.

Working Principle

The AT45DB321D-SU-SL383 memory chip has a 4 Mbit capacity, using a serial-interface dynamic random-access memory (DRAM). This memory device uses industry-standard serial protocols like I²C or SPI. It is programmed using a write stream, followed by a commit cycle. Programming time is at least 15 ms long regardless of page size. With a page size of 512 bytes, programming time can be as low as 2.5 ms. Data stored in the device can be read quickly, with a maximum read speed of 20 ns.

Data stored in the device is non-volatile, and is retained even during power-down events. This device is also resistant to external factors such as vibration and shock, meaning it is an ideal choice for applications requiring reliability. It is also available in a wide range of thermal and voltage options.

The AT45DB321D-SU-SL383 also has a unique 1- programming mode. This mode allows for rapid programming and writing of data, as well as for additional capabilities such as partial page write. This makes it ideal for applications with complex or rapidly changing data patterns.

Conclusion

AT45DB321D-SU-SL383 is an ideal memory chip for applications needing fast and reliable memory with a high capacity. Its fast write and read speeds, as well as its flexibility to be used in combination with SRAM and Flash memory makes it suitable for a variety of uses. Additionally, its features such as data retention, and resistance to external factors, make it attractive for applications requiring reliability and fault-tolerance.

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