DS1963S Datasheet, PDF (1/37 Pages) Dallas Semiconductor – SHA iButton

www.iButton.com
DS1963S
SHA iButton
SPECIAL FEATURES
§ 4096 bits of read/write nonvolatile (NV)
memory organized as 16 pages of 256 bits
each
§ Eight memory pages with individual 64-bit
secrets and 32-bit read-only non rolling-over
page write cycle counters
§ Secrets are write-only and have their own
individual write cycle counters
§ On-chip 512-bit SHA-1 (FIPS 180-1,
ISO/IEC 10118-3) engine to compute a 160-
bit Message Authentication Codes (MAC)
and generate page secrets
§ Device can operate as roaming iButton^® or
as coprocessor for a host computer
§ 256–bit scratchpad ensures integrity of data
transfer
§ On-chip 16-bit CRC generator for
safeguarding data transfers
§ Overdrive mode boosts communication
speed to 125 kbits per second
§ Operating temperature range from -20°C to
+85°C
§ Over 10 years of data retention
§ 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)
F5 MicroCan
5.89
0.51
â
16.25
0⁵¹00000FBC^â52¹B⁸
1-Wire^â
17.35
COMMON iButton FEATURES
§ 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 MicroLAN
§ Digital identification and information by
momentary contact
§ Chip-based data carrier compactly stores
information
§ Data can be accessed while affixed to object
§ Economically communicates to host with a
single digital signal at 15.4 kbits per second
§ Standard 16 mm diameter and 1-Wire^®
protocol ensure compatibility with iButton
Device family
IO
GND
All dimensions are shown in millimeters
ORDERING INFORMATION
DS1963S F5 MicroCan
EXAMPLES OF ACCESSORIES
DS9096P Self-Stick Adhesive Pad
DS9101
Multipurpose Clip
DS9093RA Mounting Lock Ring
DS9093A Snap-In Fob
DS9092
iButton Probe
iButton and 1-Wire are registered trademarks of Dallas Semiconductor.
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