The Microchip 24LC64-E/MS: A Robust 64-Kbit Serial EEPROM for I2C Applications

In the realm of embedded systems and IoT devices, the need for reliable, non-volatile memory for data storage and configuration is paramount. The Microchip 24LC64-E/MS stands out as a premier solution, offering 64 Kbits (8 KB) of Electrically Erasable Programmable Read-Only Memory (EEPROM) in a compact MSOP package. This device is engineered for seamless communication via the ubiquitous I2C (Inter-Integrated Circuit) serial protocol, making it an ideal choice for a vast array of applications.

A key strength of the 24LC64-E/MS is its robust endurance and data retention. It is specified for over 1 million erase/write cycles per sector and boasts data retention exceeding 200 years, ensuring integrity for critical parameters and logged data throughout the product's lifespan. The chip operates across a broad voltage range (1.7V to 5.5V), catering to both 3.3V and 5V systems with ease. Its low power consumption makes it particularly suitable for battery-powered and energy-sensitive applications.

The I2C interface supports clock speeds up to 400 kHz, facilitating efficient data transfer. The memory is organized as 8192 words of 8 bits each. To prevent data corruption during volatile events, the device incorporates hardware write-protection circuitry, activated by pulling the WP (Write Protect) pin to VCC. Furthermore, it features page write capability for up to 32 bytes of data, significantly improving the efficiency of writing sequential data blocks compared to single-byte operations.

Housed in an 8-lead MSOP package, the 24LC64-E/MS is designed for space-constrained PCB designs. Its industrial temperature range (-40°C to +85°C) ensures reliable operation in demanding environments. Typical applications include storing system configuration data, user settings, calibration constants, and data logging in systems ranging from industrial controls and automotive modules to smart meters and consumer electronics.

ICGOODFIND: The Microchip 24LC64-E/MS is a highly reliable and versatile serial EEPROM, offering an optimal blend of density, low-power operation, and a proven I2C interface for designers seeking a non-volatile memory solution.

Keywords: I2C EEPROM, Non-volatile Memory, Serial Memory, Data Storage, Low-power