Description
Description:
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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
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Multidrop controller for 1-Wire
net
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Digital identification and
information by momentary contact
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Chip-based data carrier compactly
stores information
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Data can be accessed while affixed
to object
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Button shape is self-aligning with
cup-shaped probes
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Stainless steel case engraved with
registration number withstands harsh environments
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Easily affixed with self-stick
adhesive backing, latched by its flange, or locked with a ring
pressed onto its rim
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Presence detector acknowledges
when reader first applies voltage
Features:
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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
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Write access requires knowledge of
the secret and the capability of computing and transmitting a
160-bit MAC as authorization
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Secret and data memory can be
write-protected (all or page 0 only) or put in EPROM-emulation mode
(“write to 0”, page 1)
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On-chip 512-bit SHA-1 engine to
compute 160-bit MAC and to generate secrets
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Reads and writes over a wide
voltage range of 2.8V to 5.25V from -40°C to +85°C
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Communicates to host with a single
digital signal at 14.1kb per second using 1-Wire protocol
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On-chip 16-bit CRC generator for
safeguarding data transfers
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Overdrive mode boosts
communication speed to 125kbps
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Operating temperature range from
-40°C to +85°C
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Minimum 10 years of data retention
at 85°C
