AT25DQ321-SH-B

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AT25DQ321-SH-B is a type of Non-Volatile Memory (NVM) product manufactured by Atmel Corporation. It is specifically designed for use in consumer electronics, automotive and industrial applications, especially those requiring high-reliability, long operating temperature ranges, and low-power operation. This memory device consists of an array of memory cells organized as 256K bits, which is further divided into 32 512-bit pages, each page including 16 addressable blocks. The AT25DQ321-SH-B has a maximum operating frequency of 30 MHz and is capable of transferring one byte of data each clock cycle for faster operation.

The device operates using the serial Peripheral Interface (SPI) protocol, providing a serial interface between systems with limited pin counts. The SPI protocol also provides for full-duplex operations, allowing for simultaneous data transmissions in both directions on the same SPI connection. In addition, the device also has a serial interface that supports continuous read or write operations. The serial interface provides faster programming time when compared to parallel interfaces.

The AT25DQ321-SH-B also supports robust data security features such as secure erase, secure write, and secure read. The secure erase feature ensures that data stored in the memory cell is completely erased before it can be written. Similarly, the secure write feature ensures that data written to the memory cell is protected against unauthorized access. The secure read feature prevents data read from the memory cell from being copied or modified.

The device also includes write protect pins that can be used to disable writing to the memory cell if needed. Furthermore, it also includes a write protect (WP) pin that can be used to toggle the memory cell between write-enabled and write-disabled modes. Furthermore, write protect pins are also used to prevent an individual block from being written to or erased.

The memory cell provides for flexibility in terms of addressability, allowing for up to 32 addressable blocks. Apart from this, the addressability feature also provides for efficient utilization of memory, allowing for efficient data storage and manipulation.

The AT25DQ321-SH-B also supports a range of errors correction codes to ensure error-free operations. The codes are generated and stored internally, making them independent of external factors. Furthermore, the device also has a self-calibration system that helps it adapt to different environmental conditions.

In summary, the AT25DQ321-SH-B is an ideal Non-Volatile Memory solution for a wide range of consumer electronics, automotive and industrial applications. Its features make it highly reliable and efficient in terms of data storage and manipulation. Its security features ensure that the data stored in the device remains secure, while the error-correction codes ensure error-free operations. Its serial interface and write protect pins help to improve speed and provide additional levels of data security. Taken together, the AT25DQ321-SH-B is an excellent choice for any project requiring long-term data storage.

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