AT25DF321A-SH-T

The AT25DF321A-SH-T is a high-performance serial NOR Flash memory device manufactured by Atmel, which is now part of Microchip Technology. This memory chip is designed for a variety of applications, including consumer electronics, automotive, and industrial systems, where reliable and efficient data storage is essential.

Key Features:

1. Memory Capacity: The AT25DF321A offers a storage capacity of 32 megabits (4 megabytes), making it suitable for applications that require moderate amounts of non-volatile memory.

2. Interface: It utilizes a Serial Peripheral Interface (SPI) for communication, which allows for high-speed data transfer. The device supports both standard SPI and dual/quad SPI modes, enabling faster read and write operations.

3. Operating Voltage: The chip operates within a voltage range of 2.7V to 3.6V, making it compatible with a wide range of power supply configurations.

4. Speed: The AT25DF321A can achieve clock speeds of up to 104 MHz in quad SPI mode, significantly enhancing data throughput compared to traditional single SPI configurations.

5. Data Retention and Endurance: The device features a data retention period of up to 20 years and supports a minimum of 100,000 program/erase cycles, ensuring long-term reliability for stored data.

6. Package Options: The AT25DF321A-SH-T is available in a compact 8-lead SOIC (Small Outline Integrated Circuit) package, which is suitable for space-constrained applications.

7. Security Features: The chip includes features such as a unique serial number, write protection, and a hardware write protection mechanism to enhance data security.

8. Command Set: It supports a comprehensive command set, including commands for reading, writing, erasing, and status checking, allowing for flexible memory management.

9. Low Power Consumption: The device is designed for low power operation, making it ideal for battery-powered applications. It has a deep power-down mode that significantly reduces power consumption when the device is not in use.

Applications:

The AT25DF321A-SH-T is suitable for a wide range of applications, including:

• Firmware storage in embedded systems
• Data logging in industrial applications
• Configuration storage in consumer electronics
• Boot code storage in automotive systems

Summary:

In summary, the AT25DF321A-SH-T from Atmel is a versatile and efficient serial NOR Flash memory device that combines high-speed performance, robust data retention, and a compact form factor. Its features make it an excellent choice for various applications requiring reliable non-volatile memory solutions.