Description:The AT25XE021A is a member of our System Enhancing class of code and data storage solutions. It is designed for all system memory tasks ranging from boot/code shadowing to data logging and includes the 256-byte page Erase feature that enables efficient, lower energy datalogging.
The recommended operating voltage range for the AT25XE021A-SSHN-T is 2.7V to 3.6V, as specified in the datasheet. However, it's essential to note that the device can operate down to 2.5V, but with reduced performance and reliability.
During power-up, the HOLD pin should be kept high until the power supply has reached the minimum operating voltage (2.7V). During power-down, the HOLD pin should be kept low to ensure that the device is in a low-power state. This is not explicitly stated in the datasheet, but it's a recommended practice to ensure proper operation.
The datasheet specifies a minimum of 100,000 erase cycles for the AT25XE021A-SSHN-T. However, the actual number of erase cycles may vary depending on the usage and operating conditions. It's recommended to follow the recommended usage guidelines and implement wear-leveling techniques to minimize the impact of erase cycles on the device's lifespan.
The AT25XE021A-SSHN-T is rated for operation up to 85°C (Tj). However, it's essential to consider the derating factors and thermal management when operating the device in high-temperature environments. The device's performance and reliability may be affected above 85°C, and it's recommended to consult with Renesas support for specific guidance on high-temperature operation.
The AT25XE021A-SSHN-T has built-in security features, such as secure erase and secure boot mechanisms. However, the implementation details are not provided in the datasheet. It's recommended to consult with Renesas support and refer to the application notes and security guidelines provided by Renesas for secure implementation of these features.
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AT25XE021A-SSHN-T Overview
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