AT45DB081B-CNU-2.5

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Memory plays an important role in the daily use of the electronics, and different kinds of memories have variations in their application fields and working principles. AT45DB081B-CNU-2.5 is an example of one such memory, which has beneficial and unique characteristics to serve different applications.

AT45DB081B-CNU-2.5 is a type of serial dataflash which is an 8-pin serial interface and 8 Kbyte serial Dataflash. It belongs to the AT45DB family, and is the smallest package of this memory. It is Carries with page erase, page write, block erase and chip erase operations and is available in a space-saving 8-pin SOP package. It is also supports a 15 MHz SPI clock which further enhances the performance. This single chip enables 80 Million write/erase cycles making this memory highly reliable and durable. More of its features include chip enable, software write-protect and power-down protection. The Dataflash also supports exemplary features like, Self-timed Write-cycle, Block Write-Protect, and Auto Page Rewrite.

The AT45DB081B-CNU-2.5 application field is wide and it is used for various industrial and commercial applications. Especially for storage and media applications, like digital pictures, audio, and video, etc. The memory also finds usage in a variety of system designing, like those of remote sensing, low to moderate security level data logging, robotics and automated machinery applications. Being compact and lightweight in size, the memory is suitable for use in handheld and portable devices, where it has a stable performance.

The AT45DB081B-CNU-2.5 works on the principles of static RAM (SRAM) and dynamic RAM (DRAM). SRAM has a fast and reliable way of writing and accessing data, due to the volatile nature of it, meaning when the power is turned off, the data will be lost. DRAM is use for low-power RAM applications, where there is a large capacity of storage needed and is not easily accessible. It requires a refresh cycle to be enabled and data must be written and retrieved slowly.

AT45DB081B-CNU-2.5 is designed using a static random access memory (SRAM) and dynamic random access memory (DRAM) architecture. In this memory integrated non-volatile Flash memory is used. This memory system consists of two primary components ‒ data Flash array and control logic. Control logic is used to control and configure the flash. Serial Peripheral Interface (SPI) along with other control signals and Dataflash array makes the system work by allowing data to be accessed and written to the memory.

The Data flash array holds user data that needs to be stored in the chip. When data is read from the DataFlash array it is serially shifted to the output by the DataFlash serial interface. It can be clocked in or out at a speed of up to 15 MHz. Flash memory is a non-volatile memory and hence retains the stored data even when power is removed from the device. Every byte in each Memory Page can be electrically erased and a single byte can be rewritten or modified. The Dataflash is a logically addressing device and its entire memory can be organized as a number of DataFlash Pages.

In conclusion, AT45DB081B-CNU-2.5 is an example of an important memory with a wide range of applications and beneficial features. Its working principle is based on both SRAM and DRAM architectures. This memory is designed using a static random access memory (SRAM) and dynamic random access memory (DRAM) architecture, making it ideal for storing and accessing data in different applications. Along with its features, the AT45DB081B-CNU-2.5 also supports a high-speed SPI clock (<15MHz).

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