The iButton 32KB EEPROM (DS1977) provides password protected access to data, both for read-only and full access. Data is transferred serially through the 1-Wire protocol, which requires only a single data lead and a ground return. Every DS1977-F5 is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainless-steel iButton package is highly resistant to environmental hazards such as dirt, moisture, and shock. Accessories permit the DS1977-F5 to be mounted on almost any object, including containers, pallets, and bags.
Feature
- 32KB EEPROM Organized as Pages of 64 Bytes Each
- Optional Password Protection with Different 64-Bit Passwords for Read and Full Access
- Communicates to Host with a Single Digital Signal at Up to 15.3kbps at Standard Speed or Up to 125kbps in Overdrive Mode Using 1-Wire Protocol
- Operating Range: 2.8V to 5.25V, -40°C to +85°C
- Minimum 100k Write Cycles Endurance
- 15kV Built-in ESD Protection
COMMON iButton FEATURES
- Unique Factory-Lasered 64-Bit Registration Number Assures Error-Free Device Selection and Absolute Traceability Because No Two Parts are Alike
- Built-In Multidrop Controller for 1-Wire Net
- Chip-Based Data Carrier Stores Digital Identification and Information, Armored in a Durable Stainless-Steel Case
- Data can be Accessed While Affixed to Object
- Button Shape is Self-Aligning with Cup-Shaped Probes
- Easily Affixed with Self-Stick Adhesive Backing, Latched by its Flange, or Locked with a Ring Pressed onto its Rim
- Presence Detector Acknowledges when Reader First Applies Voltage
Applications
- Audit Data Storage and Carrier
- Health Data Carrier
- Maintenance/Inspection Data Storage
- Medical Data Carrier
