The Maxim Integrated DS2502 is a highly versatile and durable non-volatile memory chip with a storage capacity of 1 kilobit. Specifically designed for applications where data needs to be written once and read many times, this add-only memory (AOM) device is an ideal solution for a wide range of data storage requirements.

Key Features

• Unique Factory-Lasered Registration Number: Each DS2502 comes with a unique 64-bit serial number, which ensures absolute traceability and guards against duplication.
• Secure Write-Once Memory: The device features 1024 bits of write-once EPROM, organized as four pages of 256 bits, making it perfect for storing sensitive data that must not be altered after being written.
• Durability: The memory is encased in a rugged TO-92 package, ensuring protection against environmental challenges and making it suitable for harsh industrial environments.
• Low-Power Consumption: It operates with minimal power requirements, which is critical for portable and battery-powered applications.
• Data Integrity: The DS2502 includes a 16-bit CRC generator for data integrity verification during reading operations, providing an added level of data security.

Applications

The DS2502 is widely used in applications such as:

• PCB identification
• Medical device authentication
• Aftermarket management of consumables
• Device calibration data storage

Technical Specifications

• Supply Voltage Range: 2.8V to 6.0V
• Operating Temperature Range: -40°C to +85°C
• Communication: Via 1-Wire protocol, which requires only a single data lead and a ground return.

Overall, the Maxim Integrated DS2502 offers a reliable and secure way to store data that must remain unaltered after initial programming. Its unique combination of features makes it a go-to solution for a variety of industries and applications where data integrity and security are paramount.