The AT25040N-10SI-1.8 is a 4-Kbit Serial EEPROM from Microchip Technology (formerly Atmel), organized as 512 words of 8 bits each. This device is designed for low-voltage, low-power applications, offering reliable non-volatile memory storage.

Applications

• Consumer Electronics: Used in devices like TVs, set-top boxes, and audio equipment to store user preferences and system settings.
• Industrial Control Systems: Employed in industrial equipment for storing configuration parameters, calibration data, and operating logs.
• Medical Devices: Utilized in medical instruments for storing device settings, calibration information, and patient-related data.
• Automotive Electronics: Integrated into automotive systems for storing vehicle settings, diagnostic information, and other critical data.
• Data Logging: Used in data logging applications to store sensor readings, event data, and other pertinent information.

Features

• SPI Serial Interface: Communicates using the Serial Peripheral Interface (SPI) protocol, providing a simple and efficient interface to microcontrollers.
• Low-Voltage Operation: Operates at a low voltage of 1.8V, making it ideal for battery-powered and low-power applications.
• Write Protect Feature: Includes a hardware write protect pin to prevent accidental data modification.
• High-Speed Operation: Supports SPI clock speeds up to 10 MHz, enabling fast data transfer rates.
• Self-Timed Write Cycle: Features an internal self-timed write cycle, simplifying the writing process and reducing the need for external timing control.

Benefits

• Non-Volatile Memory: Provides reliable non-volatile data storage, ensuring data retention even when power is removed.
• Easy Integration: Simplifies system design and reduces development time with its standard SPI interface.
• Data Protection: Prevents accidental data loss or corruption with the hardware write protect feature.
• Fast Data Transfer: Enables quick data reads and writes with its high-speed SPI interface.
• Low Power Consumption: Minimizes power consumption, extending battery life in portable devices and reducing energy costs in other applications.

Technical Specifications

The AT25040N-10SI-1.8 EEPROM has a typical standby current of less than 1 μA and a write cycle time of 5 ms. The operating temperature range is -40°C to +85°C. It is available in various packages, including SOIC and TSSOP.