The Microchip 24LC024-I/SN: A Robust 2K I2C Serial EEPROM for Embedded Systems

In the realm of embedded electronics, reliable non-volatile memory is a cornerstone for storing critical configuration data, calibration constants, or operational logs. The Microchip 24LC024-I/SN stands out as a premier solution, offering 2Kbits (256 x 8) of byte-alterable memory in a compact, surface-mount package. This device is engineered for simplicity and reliability, making it an ideal choice for a vast array of applications.

A key feature of the 24LC024 is its utilization of the ubiquitous I2C (Inter-Integrated Circuit) serial interface. This two-wire communication protocol (comprising Serial Data - SDA and Serial Clock - SCL) drastically reduces the number of I/O pins required on a host microcontroller, simplifying board layout and freeing up valuable MCU resources for other functions. The chip supports a standard clock frequency of 100 kHz and 400 kHz, ensuring compatibility with a wide range of microcontrollers.

The 24LC024-I/SN is designed for low-power operation, a critical attribute for battery-powered and portable devices. It features a low standby current and an active current of just 1 mA (max) during read/write operations. Furthermore, it incorporates hardware data protection via three chip select pins (A0, A1, A2), allowing up to eight of these devices to operate on the same I2C bus, expanding the total available memory space within a system.

Built for endurance and data retention, this EEPROM is specified for 1,000,000 erase/write cycles per byte and boasts a remarkable data retention period of over 200 years. Its voltage range of 1.7V to 5.5V makes it exceptionally versatile, capable of operating in both traditional 5V and modern low-voltage 3.3V and even 1.8V systems without the need for a level shifter. The 24LC024-I/SN is offered in the space-saving 8-lead SOIC (SN) package, ideal for high-density PCB designs.

ICGOODFIND: The Microchip 24LC024-I/SN is a highly reliable, low-power, and easy-to-integrate serial EEPROM. Its combination of a standard I2C interface, excellent endurance, wide voltage range, and small form factor makes it a superior choice for designers seeking a proven memory solution for industrial, consumer, and automotive applications.

Keywords: I2C Interface, Low-Power, Non-Volatile Memory, Serial EEPROM, Data Retention.