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
Digital identification and information by momentary contact
Chip-based data carrier compactly stores information
Data can be accessed while affixed to object
Button shape is self-aligning with cup-shaped probes
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
Key Specifications
Part Number
AOC-IBUTTON68
Memory Type
EEPROM
Memory Size
1K bits
Features
512-bit SHA-1 Engine
Five General-Purpose Read/Write Registers
Monetary
One 64-bit Write-Only Secret
Secure
Secure Hash Standard
Unique 64-bit Serial Number
Key Features
1128 bits of 5V EEPROM memory partitioned into four pages of 256 bits, a 64-bit write-only secret and up to five general purpose read/write registers
Write access requires knowledge of the secret and the capability of computing and transmitting a 160-bit MAC as authorization
Secret and data memory can be write-protected (all or page 0 only) or put in EPROM-emulation mode ("write to 0", page 1)
On-chip 512-bit SHA-1 engine to compute 160-bit MAC and to generate secrets
Reads and writes over a wide voltage range of 2.8V to 5.25V from -40°C to +85°C
Communicates to host with a single digital signal at 14.1kb per second using 1-Wire protocol
On-chip 16-bit CRC generator for safeguarding data transfers
Overdrive mode boosts communication speed to 125kbps
Information in this document is subject to change without notice. Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.
