M95M04-A125

The M95M04-A125 is a high-performance serial 4 Mbit (512 K × 8) non-volatile memory device manufactured by STMicroelectronics. It operates on a 3.3V power supply and features a standard SPI-compatible interface, enabling fast data transfer rates up to 10 MHz. This ensures efficient communication with microcontrollers and other host systems in embedded applications. The device offers robust write protection mechanisms, including hardware write protection pins and software-based block-level write protection. Its endurance capability supports up to 1 million erase/write cycles, making it suitable for applications requiring frequent data updates or long-term reliability. The memory also provides a data retention period of up to 200 years at 25°C, ensuring stable performance over extended operational lifetimes. Designed for low-power operation, the M95M04-A125 consumes only 1.5 mA in active mode and as low as 1 µA in standby mode, which is critical for battery-powered and portable devices. It includes an automatic write cycle management system that handles internal programming and erasing without external intervention, simplifying system design and reducing firmware complexity. This EEPROM is available in a compact 8-pin SO8 package, offering space-efficient integration into densely populated PCBs. It supports both byte-write and page-write operations, allowing flexible data handling based on application needs. The device is fully compatible with industry-standard SPI protocols, facilitating seamless integration into existing system architectures. Common applications include industrial control systems, consumer electronics, medical devices, automotive modules, and smart meters. In these environments, the M95M04-A125 serves as a reliable storage solution for configuration data, calibration parameters, user settings, and logging information. Its wide operating temperature range—from -40°C to +85°C—enhances its suitability for harsh environmental conditions. STMicroelectronics ensures quality through rigorous testing and compliance with automotive-grade standards, such as AEC-Q100, making the M95M04-A125 ideal for safety-critical and mission-critical applications. With its combination of speed, durability, low power, and ease of use, this memory device stands out as a dependable component for modern electronic systems requiring persistent, accessible, and secure data storage.