The ST25C046 from STMicroelectronics is a high-performance 4 Kbit Electrically-Erasable Programmable Read-Only Memory (EEPROM) that is designed to deliver a reliable and flexible storage solution for a wide range of applications. This EEPROM device offers the advantage of non-volatile memory storage, meaning it retains its data even when power is removed, making it ideal for configuration settings, device identification, and user-specific data.

Key Features

• Memory Size: 4 Kbits of EEPROM, organized as 512 x 8 bits, providing ample space for storage needs in small-scale applications.
• Communication Interface: The ST25C046 supports the standard I²C serial interface, facilitating easy integration into most microcontroller-based systems with a simple two-wire connection for data transfer.
• Write Cycle Time: Fast write cycle times of 5 ms max, enabling efficient data management and quick updates to stored information.
• Operating Voltage Range: The device operates over a wide voltage range of 2.5 V to 5.5 V, making it compatible with both 3.3 V and 5 V systems.
• Write Protect: A hardware write protect feature is available to prevent accidental data overwrites and ensure data integrity.
• Endurance: High data retention with a guaranteed endurance of 1 million write cycles and data retention of 40 years, ensuring long-term reliability.
• Temperature Range: The EEPROM operates across an industrial temperature range from -40°C to +85°C, allowing its use in harsh environmental conditions.

Applications

The ST25C046 is versatile and can be used in a variety of applications, including:

• Personal electronics and wearable devices
• Medical devices
• Industrial and process control systems
• Automotive systems
• Smart cards and identification systems

With its robust feature set and STMicroelectronics' reputation for quality, the ST25C046 EEPROM is an excellent choice for designers looking for a dependable non-volatile memory component.