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DS1977-F5# - Password-Protected 32kB EEPROM iButton
DS1977 iButtons

DS1977-F5# - Password-Protected 32kB EEPROM iButton

Part Number:DS1977-F5#


 In Stock, 1312
Volume Discount
  • 10 - 24
  • $15.63
  • 25 - 49
  • $15.38
  • 50+
  • $14.97
Key Features

• 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

• Digital Identification and Information by Momentary Contact.
• Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code + 48-Bit Serial Number + 8-Bit CRC Tester) - Assures Absolute Traceability Because no Two Parts are alike.
• Multidrop Controller for 1-Wire Net.
• Chip-Based Data Carrier Compactly Stores Information.
• Data Can be Accessed While Affixed to Object.
• Button Shape is Self-Aligning with Cup-Shaped Probes.
• Durable Stainless Steel Case Engraved with Registration Number Withstands Harsh Environments.
• 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.
• Meets UL#913 (4th Edit.). Intrinsically Safe Apparatus: Approved Under Entity Concept for Use in Class I, Division 1, Group A, B, C and D Locations (application pending).
The DS1977 is a 32kB EEPROM in a rugged iButton enclosure. Access to the memory can be password protected with different passwords 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 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 iButton to be mounted on almost any object, including containers, pallets, and bags.
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