AT45DB081D-SU-SL383

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AT45DB081D-SU-SL383 is a kind of non-volatile memory integrated circuit, belonging to the category of memory. Non-volatile memory is a type of memory device that could hold data without power. It differs from the volatile memory device, such as dynamic random-access memory (DRAM), which stores data only when power is applied; as soon as the power supply is lost, all data stored in the DRAM is turned into zeroes. As an IC chip, AT45DB081D-SU-SL383 gives a solution when integrated with a variety of system architecture.To have a better understanding of AT45DB081D-SU-SL383, it is meaningful to look at its application fields and working principle. Generally speaking, it is mainly used in the embedded systems where both cost and performance are primary factors. Compared to ordinary flash memory, AT45DB081D-SU-SL383 has distinct advantages such as higher density, lower cost, more verification and backward compatibility, making it more suitable for certain commercial system.At the working principle level, AT45DB081D-SU-SL383 contains 8,192 pages which are 512 bytes each, totaling 4,096,512 bytes of storage. It has 128 blocks, each block is made up of 64 pages. All these blocks have the same organization but occupy different physical addresses. Each data page consists of a Main Memory Page, which is divided into two 256 bytes segments. The main memory page contains Information Storage System (ISS) bits that verify and confirm the page integration, making sure the page reads data is accurate and unchanged during data transmission and storage. Moreover, each Data Flash page also contains 8 bit Error Correction Code (ECC) bits and 64 unused bits.Besides, with the presence of a high-speed serial peripheral interface (SPI), it enables an access time down to 70ns, allowing system designs to develop high-frequency applications. If a device supports SPI Mode 3, it can communicate with AT45DB081D-SU-SL383. Mode 3 SPI is characterized by an idle clock state of high and a data valid at the rising edge of the clock.Moreover, much like other memory ICs, AT45DB081D-SU-SL383 provides multiple commands for reading and writing, making sure the data can be accessed in both serial and sequential mode. For a device that incorporates AT45DB081D-SU-SL383, serial mode is not only faster and simpler to use, but also has lower power consumption.In terms of safety, it is necessary to mention that AT45DB081D-SU-SL383 possesses a page rewrite protection scheme, which allows the user to access up to the deepest level. For example, when two pages are joined together, once write one page, the other can not be modified until the user removes the protection layer.To summarize, AT45DB081D-SU-SL383 is an effective and cost-efficient way for users to set up memory for certain application. By providing higher density, lower cost and function of page rewrite protection, it comes as a suitable option for embedded systems. Although it\'s working principle is more complicated than most types of memory devices, its read and write commands are friendly and straightforward enough, offering a reliable way to store data and make it last.

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