Dallas Semiconductor DS1971-F5# 256b EEPROM Ibutton

This iButton device is a rugged read/write data carrier that can be used to store and identify information. With a 256-bit EEPROM memory, the device can be used in a wide variety of applications where product or personnel data are required to be accessible.

As part of an iButton system, the data is easily written and accessed, and the durable MicroCan package is highly resistant to harsh environments, making this device suitable for a wide range of applications, such as: workflow tracking, access control, storage of calibration constants, and ID badges.

• 256-bit EEPROM
• Communicates with just one signal line plus ground
• Unique, factory-lasered and tested 64-bit registration number
• Required only momentary contact to read memory
• Standard 1-Wire protocol
• F5 MicroCan type