24LC08B-E/MC

24LC08B-E/MC Application Field and Working Principle

Comprising part of the Serial EEPROM family, the 24LC08B-E/MC device provides a range of features and advantages, including; a low-voltage serial interface and 8Kbit of memory. The 24LC08B-E/MC provides the industry standard 2-wire I2C serial interface, with which the device can be connected to almost any micro-processor with an I2C serial interface, allowing for a basic EEPROM to be connected and accessed with minimal effort.

Application Field

The application field of the 24LC08B-E/MC is quite extensive. This serial EEPROM chip is used for various types of applications such as data logging and data storage. It can also be used for tasks where a small amount of data needs to be retained, like user selections and settings, ringtone and wallpaper memories, or other user-defined settings. This device is a great choice for products that have a need for a non-volatile memory solution, but cannot warrant the increased cost of a full FLASH device.

Working Principle

The 24LC08B-E/MC operates by using non-volatile EEPROM memory. This chip utilizes a low-voltage serial interface, allowing communication between the EEPROM and a host controller. This device also implements an 8Kbit of EEPROM memory in an 8-lead SOIC package with an 8-bit wide data bus. A write-protect (WP#) pin is also included on the device which, when taken low, allows the user to protect the contents of the EEPROM from unauthorized overwriting. The 24LC08B-E/MC device supports a maximum data rate of 1 MHz and features a maximum read/write time of 5ms.

When operating correctly, the 24LC08B-E/MC can hold data for up to 100 years at a temperature of 25°C. As the device is write-protected with a WP# pin, any data that needs to be written to the device must be sent with the appropriate control signals and data sent from the host controller. Additionally, when it is powered from a single supply voltage and working within a temperature range of 0°C to 70°C, the device can sustain over one million write cycles.

Additionally, the 24LC08B-E/MC device supports hardware write-protection, which is an advantageous feature for those applications that require a larger amount of data to be stored. This can be activated by pulling the WP# pin low. Since the pins on the 24LC08B-E/MC are small, the data can be programmed onto the chip using the I2C serial interface. This makes the coding of the chip easier than in other applications as there is no need to worry about parallel programming or additional circuitry.

Conclusion

The 24LC08B-E/MC is a great choice for those seeking a low-cost, low-power non-volatile memory solution. The features of the device; an 8Kbit EEPROM memory, a low-voltage serial interface, hardware write protection and a maximum read/write time of 5ms, make it an ideal choice for applications where a small amount of data needs to be stored for retention during power down.