Description:The AT25XE321D is a member of our System Enhancing class of code and data storage solutions designed for all system memory tasks ranging from boot/code shadowing to data logging of frequently changing data. It is universally compatible and includes extra features that save system energy and overhead.
The recommended operating voltage range for the AT25XE321D-SSHN-B is 2.7V to 3.6V, as specified in the datasheet. However, it's essential to note that the device can tolerate a voltage range of 2.5V to 3.7V for a short duration, but prolonged operation outside the recommended range may affect its performance and reliability.
During power-up, the HOLD pin should be kept high (VCC) until the power supply has stabilized. During power-down, the HOLD pin should be kept low (GND) to prevent any unwanted writes or accesses to the device. It's essential to follow the recommended power-up and power-down sequences to ensure the device operates correctly and to prevent data corruption.
The AT25XE321D-SSHN-B supports up to 100,000 write cycles per sector, with a total of 4,096 sectors. This means the device can support a total of 409,600,000 write cycles (100,000 cycles/sector * 4,096 sectors). However, it's essential to note that the actual number of write cycles may vary depending on the usage and operating conditions.
Wear leveling can be implemented by distributing write operations across the entire memory space, using techniques such as dynamic wear leveling or static wear leveling. This can be achieved through software or firmware implementation, and it's essential to consider the specific use case and requirements when designing a wear leveling strategy.
The recommended method for erasing the entire memory array is to use the Chip Erase command (0x60 or 0xC7). This command erases the entire memory array, including the status register and the protection registers. It's essential to follow the recommended erase procedure to ensure the device operates correctly and to prevent data corruption.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
AT25XE321D-SSHN-B Overview
Use the download button to access the AT25XE321D-SSHN-B schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like AT25X,
or try a keyword search, such as Flash Memories
