Overview of Atmel AT24C08C-SSHM-T

The AT24C08C-SSHM-T is an 8-kilobit (1 kilobyte) I2C-compatible EEPROM (Electrically Erasable Programmable Read-Only Memory) device manufactured by Atmel, now part of Microchip Technology. This memory device is designed for applications requiring non-volatile storage, allowing data to be retained even when power is removed. The AT24C08C is particularly suitable for consumer electronics, automotive applications, and industrial systems where reliable data storage is essential.

Key Specifications

- Memory Size: 8 Kbit (1 Kbyte)
- Organization: 1,024 x 8 bits
- Interface: I2C (Two-wire)
- Supply Voltage: 1.8 V to 5.5 V
- Maximum Clock Frequency: 1 MHz (standard mode)
- Write Cycle Time: 5 ms (typical)
- Endurance: 1,000,000 write cycles
- Data Retention: 100 years
- Package Type: TSSOP-8

Electrical Characteristics

The AT24C08C-SSHM-T operates over a supply voltage range of 1.8 V to 5.5 V, making it suitable for low-power applications. The device communicates via the I2C interface, which allows for easy integration into various systems. The maximum clock frequency of 1 MHz enables fast data transfer rates, ensuring efficient communication between the EEPROM and the microcontroller or processor.

Memory Organization and Access

The memory is organized as 1,024 x 8 bits, allowing for straightforward data storage and retrieval. The device supports random access to any byte of memory, making it efficient for applications that require frequent read and write operations. The write cycle time of 5 ms (typical) ensures that data can be written quickly, which is essential for applications that require real-time data logging or updates.

Endurance and Data Retention

The AT24C08C-SSHM-T boasts an impressive endurance of 1,000,000 write cycles, making it suitable for applications that involve frequent data updates. Additionally, the device offers a data retention period of 100 years, ensuring that stored data remains intact over long periods, even in harsh environmental conditions.

Applications

The AT24C08C-SSHM-T is versatile and can be utilized in various applications, including:

- Consumer Electronics: Used in devices such as remote controls, televisions, and audio equipment for storing configuration settings and user preferences.
- Automotive Systems: Suitable for storing calibration data, configuration settings, and diagnostic information in automotive electronics.
- Industrial Control: Effective in industrial automation systems for storing parameters and settings that need to be retained during power loss.
- Smart Meters: Can be used in energy meters for storing usage data and configuration settings.

Advantages

- Low Power Consumption: The wide supply voltage range and low operating current make it ideal for battery-powered applications.
- I2C Compatibility: The I2C interface simplifies communication with microcontrollers and other devices, reducing design complexity.
- High Endurance: The ability to withstand 1,000,000 write cycles ensures reliability in applications requiring frequent updates.
- Long Data Retention: The 100-year data retention capability provides confidence in the integrity of stored data over time.

Conclusion

The Atmel AT24C08C-SSHM-T is a reliable and efficient EEPROM solution that offers excellent performance for a variety of applications requiring non-volatile memory. With its robust specifications, including a suitable memory size, low power consumption, and high endurance, it is well-suited for consumer electronics, automotive systems, and industrial applications. Its I2C interface and long data retention make it a valuable component for engineers and designers looking to implement effective data storage solutions in their projects.