Microchip 24AA02-I/MS 2K I²C Serial EEPROM: Features and Applications

The Microchip 24AA02-I/MS is a 2Kbit I²C serial EEPROM memory device designed for low-power, non-volatile data storage in a wide range of applications. Housed in an 8-pin MSOP package, this IC is a reliable solution for storing configuration parameters, calibration data, and other critical information in systems where space and power are at a premium.

Key Features

A primary advantage of the 24AA02-I/MS is its low-power operation, which is critical for battery-powered and portable devices. It features a standby current of just 1 μA (max.) and an active read current of 1 mA (max.), ensuring minimal drain on the power source.

The device supports the ubiquitous I²C (Inter-Integrated Circuit) serial interface, enabling communication with a host microcontroller using only two bidirectional lines (SDA and SCL). This drastically reduces the number of I/O pins required, simplifying board layout and design. It is organized as 256 x 8 (2K bits) and supports a 400 kHz clock frequency for efficient data transfer.

Data integrity is ensured through built-in hardware write-protection. The WP (Write-Protect) pin, when tied to VCC, prevents any write operations to the entire memory array, safeguarding data from accidental corruption. Furthermore, the EEPROM cell is rated for 1,000,000 erase/write cycles and offers 200-year data retention, providing exceptional endurance and long-term reliability.

The 24AA02-I/MS operates over a broad voltage range (1.7V to 5.5V), making it compatible with various logic levels and suitable for use in systems from 2V to 5.5V without needing a level translator.

Primary Applications

This EEPROM is incredibly versatile and finds use in numerous sectors:

Consumer Electronics: Used in smart home devices, televisions, and audio equipment to store user settings and calibration data.

Medical Devices: Ideal for portable medical monitors and instruments where storing patient data and device configuration is essential.

Industrial Systems: Employed in industrial automation and sensor modules for storing calibration constants, network addresses, and operational logs.

Automotive Electronics: Suitable for non-critical storage tasks in automotive modules, operating within extended temperature ranges.

IoT and Wearables: Its tiny form factor and ultra-low power consumption make it perfect for space-constrained, battery-operated IoT sensor nodes and wearable technology.

ICGOODFIND Summary

The Microchip 24AA02-I/MS stands out as a highly efficient and robust 2Kbit serial EEPROM. Its combination of low-power consumption, a simple 2-wire I²C interface, exceptional reliability, and a small MSOP package makes it an optimal choice for designers seeking reliable non-volatile memory across a vast spectrum of modern electronic applications.

Keywords:

I²C EEPROM

Low-Power Operation

Non-Volatile Memory

Microchip 24AA02

Serial Memory