The DS2430AP/T is a 1-Wire Electrically Erasable Programmable Read-Only Memory (EEPROM) chip manufactured by Dallas Semiconductor (now Maxim Integrated). It offers a cost-effective and simple solution for storing small amounts of data in applications where a single-contact data interface is required. It is commonly used for identification and authentication purposes.

Applications

• Authentication of printer cartridges
• Identification of medical sensors
• Tracking of disposable components in equipment
• Battery pack identification
• Electronic access control systems

Features

• 1024 bits of EEPROM organized as four pages of 256 bits each
• Single-contact 1-Wire interface for communication and power
• Unique, factory-lasered 64-bit registration number assures absolute identity
• Built-in multidrop controller for 1-Wire net
• Read/write access protected by a multi-level security scheme
• Operating temperature range: -40°C to +85°C
• Low-cost TO-92 package

Benefits

• Simplified wiring: The 1-Wire interface reduces the number of wires required for communication and power, simplifying system design and reducing costs.
• Unique Identification: The factory-lasered registration number provides a guaranteed unique identifier for each device, enabling secure identification and tracking.
• Non-volatile memory: Data is retained even when power is removed, ensuring reliable storage of important information.
• Cost-effective: The DS2430AP/T offers a low-cost solution for adding memory and identification capabilities to a wide range of applications.
• Secure Access: The multi-level security scheme protects data from unauthorized access, ensuring data integrity and preventing tampering.

Additional Details

The DS2430AP/T utilizes a Dallas Semiconductor 1-Wire interface, which requires only one data line plus ground for communication. Power for writing and reading the memory is derived from the 1-Wire communication line itself. The EEPROM memory can be written and read using standard 1-Wire commands. Each device has a unique 64-bit serial number permanently lasered into the chip. This number can be used as a key to identify and authenticate the device. The device operates from 2.8V to 6.0V.