The AT24CM02-SSHD-T: A High-Density Serial EEPROM Solution from Microchip Technology

In the realm of non-volatile memory, serial EEPROMs remain a cornerstone for storing critical data in a vast array of electronic systems. The AT24CM02-SSHD-T from Microchip Technology stands out as a robust and high-density solution, offering 2 megabits (256 Kbytes) of reliable memory in a compact package. This device is engineered to meet the demanding requirements of modern applications, from industrial automation and automotive systems to smart meters and consumer electronics.

A key feature of this memory chip is its utilization of the ubiquitous I²C (Inter-Integrated Circuit) serial interface. This industry-standard two-wire protocol allows for efficient communication with a host microcontroller using only two bus lines, significantly reducing system interconnect complexity and board space. The AT24CM02 supports a wide voltage range from 1.7V to 5.5V, making it exceptionally versatile for use in both low-power and legacy systems. Its extended temperature range (-40°C to +85°C) ensures stable operation in harsh environmental conditions, a critical factor for automotive and industrial designs.

The internal organization of the 2-Mbit array is configured as 256,000 bytes of 8 bits each. To enhance write flexibility and software management, the memory is arranged in two 128 Kbit (16-Kbyte) logical devices that can be individually selected using a software protocol, mimicking two separate EEPROMs on a single bus. For advanced data protection, the chip features a hardware write-protect pin and 64-byte page write mode with built-in error correction, safeguarding stored information from accidental overwrites or corruption.

With a minimum endurance of 1 million write cycles and a data retention period of up to 100 years, the AT24CM02-SSHD-T is built for long-term reliability. Its space-saving 8-lead SOIC package is ideal for high-density PCB layouts, solidifying its role as a fundamental component for parameter storage, data logging, and configuration memory.

ICGOODFIND: The AT24CM02-SSHD-T is a high-performance, high-density serial EEPROM that excels in reliability, ease of integration, and flexibility, making it an excellent choice for designers needing robust non-volatile memory.

Keywords: Serial EEPROM, I²C Interface, Non-Volatile Memory, High-Density, Microchip Technology.