STMicroelectronics M95M04-DR 4-Mbit SPI EEPROM

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Description

The M95M04-DR is a 4-Mbit electrically erasable programmable memory (EEPROM) accessed via an SPI bus. It operates from 1.8V to 5.5V and is rated for over 4 million write cycles per byte. The device is ideal for flexible data logging and long-term data retention in industrial and embedded applications.

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Introduction

The STMicroelectronics M95M04-DR 4-Mbit SPI EEPROM is a high-capacity, non-volatile memory chip designed for reliable data storage. Leveraging SPI communication, this EEPROM offers robust performance and flexibility for a wide range of electronic applications.

Part Description

The M95M04-DR is a 4-megabit (512 Kbyte) electrically erasable programmable read-only memory (EEPROM) that communicates via a Serial Peripheral Interface (SPI) bus. It operates within a voltage range of 1.8V to 5.5V, making it compatible with various logic levels. With an endurance of over 4 million write cycles per byte and excellent data retention, this device is well-suited for applications requiring frequent updates and long-term storage. Its compact design and high reliability make it a staple in modern embedded systems.

Applications

Data logging and event recording
Configuration and calibration data storage
Firmware and parameter storage
Secure key and credential management
Industrial process monitoring

Industries

Industrial automation
Consumer electronics
Automotive systems
Medical devices
Telecommunications

Usage Ideas

Smart Meter Data Logger
Use the M95M04-DR to store periodic energy consumption data in a smart electricity meter, ensuring reliable long-term logging even during power outages.
IoT Sensor Node Configuration
Store sensor calibration parameters and device settings in the EEPROM, allowing remote updates and persistent configuration in IoT sensor nodes.
Automotive Event Recorder
Implement the M95M04-DR in a vehicle's control module to log diagnostic trouble codes and event histories for maintenance and troubleshooting.

Conclusion

The STMicroelectronics M95M04-DR 4-Mbit SPI EEPROM is a versatile and dependable memory solution for applications demanding high endurance and secure, long-term data retention. Its broad voltage compatibility, robust write cycle rating, and SPI interface make it an excellent choice for designers across various industries seeking reliable non-volatile storage.